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additive grade calcium hydroxide (FdCa(OH)₂)</title> <meta name="description" content="Search results for: food additive grade calcium hydroxide (FdCa(OH)₂)"> <meta name="keywords" content="food additive grade calcium hydroxide (FdCa(OH)₂)"> <meta name="viewport" content="width=device-width, initial-scale=1, minimum-scale=1, maximum-scale=1, user-scalable=no"> <meta charset="utf-8"> <link href="https://cdn.waset.org/favicon.ico" type="image/x-icon" rel="shortcut icon"> <link href="https://cdn.waset.org/static/plugins/bootstrap-4.2.1/css/bootstrap.min.css" rel="stylesheet"> <link href="https://cdn.waset.org/static/plugins/fontawesome/css/all.min.css" rel="stylesheet"> <link href="https://cdn.waset.org/static/css/site.css?v=150220211555" rel="stylesheet"> </head> <body> <header> <div class="container"> <nav class="navbar navbar-expand-lg navbar-light"> <a class="navbar-brand" href="https://waset.org"> <img src="https://cdn.waset.org/static/images/wasetc.png" alt="Open Science Research 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</div> </div> <h1 class="mt-3 mb-3 text-center" style="font-size:1.6rem;">Search results for: food additive grade calcium hydroxide (FdCa(OH)₂)</h1> <div class="card paper-listing mb-3 mt-3"> <h5 class="card-header" style="font-size:.9rem"><span class="badge badge-info">6130</span> Bactericidal Efficacy of Quaternary Ammonium Compound on Carriers with Food Additive Grade Calcium Hydroxide against Salmonella Infantis and Escherichia coli</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=M.%20Shahin%20Alam">M. Shahin Alam</a>, <a href="https://publications.waset.org/abstracts/search?q=Satoru%20Takahashi"> Satoru Takahashi</a>, <a href="https://publications.waset.org/abstracts/search?q=Mariko%20Itoh"> Mariko Itoh</a>, <a href="https://publications.waset.org/abstracts/search?q=Miyuki%20Komura"> Miyuki Komura</a>, <a href="https://publications.waset.org/abstracts/search?q=Mayuko%20Suzuki"> Mayuko Suzuki</a>, <a href="https://publications.waset.org/abstracts/search?q=Natthanan%20%20Sangsriratanakul"> Natthanan Sangsriratanakul</a>, <a href="https://publications.waset.org/abstracts/search?q=Kazuaki%20Takehara"> Kazuaki Takehara</a> </p> <p class="card-text"><strong>Abstract:</strong></p> Cleaning and disinfection are key components of routine biosecurity in livestock farming and food processing industry. The usage of suitable disinfectants and their proper concentration are important factors for a successful biosecurity program. Disinfectants have optimum bactericidal and virucidal efficacies at temperatures above 20°C, but very few studies on application and effectiveness of disinfectants at low temperatures have been done. In the present study, the bactericidal efficacies of food additive grade calcium hydroxide (FdCa(OH)), quaternary ammonium compound (QAC) and their mixture, were investigated under different conditions, including time, organic materials (fetal bovine serum: FBS) and temperature, either in suspension or in carrier test. Salmonella Infantis and Escherichia coli, which are the most prevalent gram negative bacteria in commercial poultry housing and food processing industry, were used in this study. Initially, we evaluated these disinfectants at two different temperatures (4°C and room temperature (RT) (25°C ± 2°C)) and 7 contact times (0, 5 and 30 sec, 1, 3, 20 and 30 min), with suspension tests either in the presence or absence of 5% FBS. Secondly, we investigated the bactericidal efficacies of these disinfectants by carrier tests (rubber, stainless steel and plastic) at same temperatures and 4 contact times (30 sec, 1, 3, and 5 min). Then, we compared the bactericidal efficacies of each disinfectant within their mixtures, as follows. When QAC was diluted with redistilled water (dW2) at 1: 500 (QACx500) to obtain the final concentration of didecyl-dimethylammonium chloride (DDAC) of 200 ppm, it could inactivate Salmonella Infantis within 5 sec at RT either with or without 5% FBS in suspension test; however, at 4°C it required 30 min in presence of 5% FBS. FdCa(OH)2 solution alone could inactivate bacteria within 1 min both at RT and 4°C even with 5% FBS. While FdCa(OH)2 powder was added at final concentration 0.2% to QACx500 (Mix500), the mixture could inactivate bacteria within 30 sec and 5 sec, respectively, with or without 5% FBS at 4°C. The findings from the suspension test indicated that low temperature inhibited the bactericidal efficacy of QAC, whereas Mix500 was effective, regardless of short contact time and low temperature, even with 5% FBS. In the carrier test, single disinfectant required bit more time to inactivate bacteria on rubber and plastic surfaces than on stainless steel. However, Mix500 could inactivate S. Infantis on rubber, stainless steel and plastic surfaces within 30 sec and 1 min, respectively, at RT and 4°C; but, for E. coli, it required only 30 sec at both temperatures. So, synergistic effects were observed on different carriers at both temperatures. For a successful enhancement of biosecurity during winter, the disinfectants should be selected that could have short contact times with optimum efficacy against the target pathogen. The present study findings help farmers to make proper strategies for application of disinfectants in their livestock farming and food processing industry. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=carrier" title="carrier">carrier</a>, <a href="https://publications.waset.org/abstracts/search?q=food%20additive%20grade%20calcium%20hydroxide%20%28FdCa%28OH%29%E2%82%82%29" title=" food additive grade calcium hydroxide (FdCa(OH)₂)"> food additive grade calcium hydroxide (FdCa(OH)₂)</a>, <a href="https://publications.waset.org/abstracts/search?q=quaternary%20ammonium%20compound" title=" quaternary ammonium compound"> quaternary ammonium compound</a>, <a href="https://publications.waset.org/abstracts/search?q=synergistic%20effects" title=" synergistic effects"> synergistic effects</a> </p> <a href="https://publications.waset.org/abstracts/81553/bactericidal-efficacy-of-quaternary-ammonium-compound-on-carriers-with-food-additive-grade-calcium-hydroxide-against-salmonella-infantis-and-escherichia-coli" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/81553.pdf" target="_blank" class="btn btn-primary btn-sm">PDF</a> <span class="bg-info text-light px-1 py-1 float-right rounded"> Downloads <span class="badge badge-light">294</span> </span> </div> </div> <div class="card paper-listing mb-3 mt-3"> <h5 class="card-header" style="font-size:.9rem"><span class="badge badge-info">6129</span> Comparison of the Hydration Products of Commercial and Experimental Calcium Silicate Cement: The Preliminary Observational Study</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Seok%20Woo%20Chang">Seok Woo Chang</a> </p> <p class="card-text"><strong>Abstract:</strong></p> Aim: The objective of this study was to compare and evaluate the hydration products of commercial and experimental calcium silicate cement. Materials and Methods: The commercial calcium silicate cement (ProRoot MTA, Dentsply) and experimental calcium silicate cement (n=10) were mixed with distilled water (water/powder ratio = 20 w/w) and stirred at room temperature for 10 hours. These mixtures were dispersed on wafer and dried for 12 hours at room temperature. Thereafter, the dried specimens were examined with Scanning Electron Microscope (SEM). Electron Dispersive Spectrometry (EDS) was also carried out. Results: The commercial calcium silicate cement (ProRoot MTA) and experimental calcium silicate cement both showed precipitation of rod-like and globule-like crystals. Based on EDS analysis, these precipitates were supposed to be calcium hydroxide or calcium silicate hydrates. The degree of formation of these precipitates was higher in commercial MTA. Conclusions: Based on the results, both commercial and experimental calcium silicate cement had ability to produce calcium hydroxide or calcium silicate hydrate precipitates. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=calcium%20silicate%20cement" title="calcium silicate cement">calcium silicate cement</a>, <a href="https://publications.waset.org/abstracts/search?q=ProRoot%20MTA" title=" ProRoot MTA"> ProRoot MTA</a>, <a href="https://publications.waset.org/abstracts/search?q=precipitation" title=" precipitation"> precipitation</a>, <a href="https://publications.waset.org/abstracts/search?q=calcium%20hydroxide" title=" calcium hydroxide"> calcium hydroxide</a>, <a href="https://publications.waset.org/abstracts/search?q=calcium%20silicate%20hydrate" title=" calcium silicate hydrate"> calcium silicate hydrate</a> </p> <a href="https://publications.waset.org/abstracts/8741/comparison-of-the-hydration-products-of-commercial-and-experimental-calcium-silicate-cement-the-preliminary-observational-study" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/8741.pdf" target="_blank" class="btn btn-primary btn-sm">PDF</a> <span class="bg-info text-light px-1 py-1 float-right rounded"> Downloads <span class="badge badge-light">265</span> </span> </div> </div> <div class="card paper-listing mb-3 mt-3"> <h5 class="card-header" style="font-size:.9rem"><span class="badge badge-info">6128</span> Fluoride as Obturating Material in Primary Teeth</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Syed%20Ameer%20Haider%20Jafri">Syed Ameer Haider Jafri</a> </p> <p class="card-text"><strong>Abstract:</strong></p> The primary goal of a root canal treatment in deciduous teeth is to eliminate infection and to retain the tooth in a functional state until it gets physiologically exfoliated and replaced by permanent successor. Important requisite of a root canal filling material for primary teeth is that, it should resorb at a similar rate as the roots of primary tooth, be harmless to the periapical tissue and to the permanent tooth germ, resorb readily if pushed beyond the apex, be antiseptic, radio-opaque, should not shrink, adhere to the walls, not discolor the tooth and easy to fill & remove, if required at any stage. Presently available, commonly used obturating materials for primary teeth are zinc oxide eugenol, calcium hydroxide and iodoform based pastes. None of these materials so far meet the ideal requirement of root canal filling material. So in search of ideal obturating material, this study was planed, in which mixture of calcium hydroxide, zinc oxide & sodium fluoride and mixture of calcium hydroxide & sodium fluoride was compared clinically and radiographically with calcium hydroxide for the obturation of root canals of 75 carious exposed primary mandibular second molars of 59 children aged 4-9 years. All the three material shows good results, but after a follow-up of 9 months mixture of calcium hydroxide, two percent sodium fluoride & zinc oxide powder closely follow the resorption of root, mixture of calcium hydroxide, two percent sodium fluoride follow resorption of root in the beginning but later on majority of cases shows faster resorption whereas calcium hydroxide starts depleting from the canal from the beginning even as early as 3 months. Thus mixture of calcium hydroxide, two percent sodium fluoride & zinc oxide found to be best obturaring material for primary tooth. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=obturating%20material" title="obturating material">obturating material</a>, <a href="https://publications.waset.org/abstracts/search?q=primary%20teeth" title=" primary teeth"> primary teeth</a>, <a href="https://publications.waset.org/abstracts/search?q=root%20canal%20treatment" title=" root canal treatment"> root canal treatment</a>, <a href="https://publications.waset.org/abstracts/search?q=success%20rate" title=" success rate"> success rate</a> </p> <a href="https://publications.waset.org/abstracts/58937/fluoride-as-obturating-material-in-primary-teeth" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/58937.pdf" target="_blank" class="btn btn-primary btn-sm">PDF</a> <span class="bg-info text-light px-1 py-1 float-right rounded"> Downloads <span class="badge badge-light">305</span> </span> </div> </div> <div class="card paper-listing mb-3 mt-3"> <h5 class="card-header" style="font-size:.9rem"><span class="badge badge-info">6127</span> Improving Flotation Separation of Apatite Ore Using Calcium Lignosulphonate and Tannin as Combined Depressant</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Kwang%20Sok%20Jong">Kwang Sok Jong</a> </p> <p class="card-text"><strong>Abstract:</strong></p> Apatite is separated from carbonate minerals via direct flotation by using lignosulphonate as a depressant, but its dosage is high, and its inhibition ability is insufficient. Therefore a combination of depressant calcium lignosulphonate and depressant tannin was considered to improve flotation selectivity and decrease the dosage of depressant. In the present work, the effects of several reagents- pH regulators (sodium carbonate and sodium hydroxide), combined depressant (calcium lignosulphonate and tannin) and collector (fatty acid amide soap) on the flotation performance of apatite ore were investigated using Design Expert software. Flotation results showed that the combined depressant had not only more excellent inhibition ability compared with the individual depressant respectively, but also lower dosage. In the raw ore containing 6.65% P₂O₅, a concentrate containing 32.93% P₂O₅ with 93.24% recovery was obtained using 3.5kg/t sodium carbonate, 0.75kg/t sodium hydroxide, 1kg/t calcium lignosulphonate, 50g/t tannin and 100g/t fatty acid amide soap in the rougher flotation. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=apatite%20flotation" title="apatite flotation">apatite flotation</a>, <a href="https://publications.waset.org/abstracts/search?q=combined%20depressant" title=" combined depressant"> combined depressant</a>, <a href="https://publications.waset.org/abstracts/search?q=calcium%20lignosulphonate" title=" calcium lignosulphonate"> calcium lignosulphonate</a>, <a href="https://publications.waset.org/abstracts/search?q=tannin" title=" tannin"> tannin</a> </p> <a href="https://publications.waset.org/abstracts/187062/improving-flotation-separation-of-apatite-ore-using-calcium-lignosulphonate-and-tannin-as-combined-depressant" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/187062.pdf" target="_blank" class="btn btn-primary btn-sm">PDF</a> <span class="bg-info text-light px-1 py-1 float-right rounded"> Downloads <span class="badge badge-light">38</span> </span> </div> </div> <div class="card paper-listing mb-3 mt-3"> <h5 class="card-header" style="font-size:.9rem"><span class="badge badge-info">6126</span> Effect of Addition Rate of Expansive Additive on Autogenous Shrinkage and Delayed Expansion of Ultra-High Strength Mortar</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Yulu%20Zhang">Yulu Zhang</a>, <a href="https://publications.waset.org/abstracts/search?q=Atushi%20Teramoto"> Atushi Teramoto</a>, <a href="https://publications.waset.org/abstracts/search?q=Taka-Aki%20Ohkubo"> Taka-Aki Ohkubo</a> </p> <p class="card-text"><strong>Abstract:</strong></p> In this study, the effect of expansive additives on autogenous shrinkage and delayed expansion of ultra-high strength mortar was explored. The specimens made for the study were composed of ultra-high strength mortar, which was mixed with ettringite-lime composite type expansive additive. Two series of experiments were conducted with the specimens. The experimental results confirmed that the autogenous shrinkage of specimens was effectively decreased by increasing the proportion of the expansive additive. On the other hand, for the specimens, which had 7% expansive additive, and were cured for seven days at a constant temperature of 20°C, and then cured for a long time in either in an underwater, moist (Relative humidity: 100%) or dry air (Relative humidity: 60%) environment, excessively large expansion strain occurred. Specifically, typical turtle shell-like swelling expansion cracks were confirmed in the specimens that underwent long-term curing in an underwater and moist environment. According to the result of hydration analysis, the formation of expansive substances, calcium hydroxide and alumina, ferric oxide, tri-sulfate contribute to the occurrence of delayed expansion. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=ultra-high%20strength%20mortar" title="ultra-high strength mortar">ultra-high strength mortar</a>, <a href="https://publications.waset.org/abstracts/search?q=expansive%20additive" title=" expansive additive"> expansive additive</a>, <a href="https://publications.waset.org/abstracts/search?q=autogenous%20shrinkage" title=" autogenous shrinkage"> autogenous shrinkage</a>, <a href="https://publications.waset.org/abstracts/search?q=delayed%20expansion" title=" delayed expansion"> delayed expansion</a> </p> <a href="https://publications.waset.org/abstracts/72289/effect-of-addition-rate-of-expansive-additive-on-autogenous-shrinkage-and-delayed-expansion-of-ultra-high-strength-mortar" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/72289.pdf" target="_blank" class="btn btn-primary btn-sm">PDF</a> <span class="bg-info text-light px-1 py-1 float-right rounded"> Downloads <span class="badge badge-light">239</span> </span> </div> </div> <div class="card paper-listing mb-3 mt-3"> <h5 class="card-header" style="font-size:.9rem"><span class="badge badge-info">6125</span> Effect of Liquid Additive on Dry Grinding for Desired Surface Structure of CaO Catalyst</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Wiyanti%20Fransisca%20Simanullang">Wiyanti Fransisca Simanullang</a>, <a href="https://publications.waset.org/abstracts/search?q=Shinya%20Yamanaka"> Shinya Yamanaka</a> </p> <p class="card-text"><strong>Abstract:</strong></p> Grinding method was used to control the active site and to improve the specific surface area (SSA) of calcium oxide (CaO) derived from scallop shell as a sustainable resource. The dry grinding of CaO with acetone and tertiary butanol as a liquid additive was carried out using a planetary ball mill with a laboratory scale. The experiments were operated by stepwise addition with time variations to determine the grinding limit. The active site of CaO was measured by X-Ray Diffraction and FT-IR. The SSA variations of products with grinding time were measured by BET method. The morphology structure of CaO was observed by SEM. The use of liquid additive was effective for increasing the SSA and controlling the active site of CaO. SSA of CaO was increased in proportion to the amount of the liquid additive and the grinding time. The performance of CaO as a solid base catalyst for biodiesel production was tested in the transesterification reaction of used cooking oil to produce fatty acid methyl ester (FAME). <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=active%20site" title="active site">active site</a>, <a href="https://publications.waset.org/abstracts/search?q=calcium%20oxide" title=" calcium oxide"> calcium oxide</a>, <a href="https://publications.waset.org/abstracts/search?q=grinding" title=" grinding"> grinding</a>, <a href="https://publications.waset.org/abstracts/search?q=specific%20surface%20area" title=" specific surface area"> specific surface area</a> </p> <a href="https://publications.waset.org/abstracts/68649/effect-of-liquid-additive-on-dry-grinding-for-desired-surface-structure-of-cao-catalyst" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/68649.pdf" target="_blank" class="btn btn-primary btn-sm">PDF</a> <span class="bg-info text-light px-1 py-1 float-right rounded"> Downloads <span class="badge badge-light">288</span> </span> </div> </div> <div class="card paper-listing mb-3 mt-3"> <h5 class="card-header" style="font-size:.9rem"><span class="badge badge-info">6124</span> Pretreatment of Aquatic Weed Typha latifolia with Sodium Bisulphate for Enhanced Acid and Enzyme Hydrolysis for Production of Xylitol and Bioethanol</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Jyosthna%20Khanna%20Goli">Jyosthna Khanna Goli</a>, <a href="https://publications.waset.org/abstracts/search?q=Shaik%20Naseeruddin"> Shaik Naseeruddin</a>, <a href="https://publications.waset.org/abstracts/search?q=Hameeda%20Bee"> Hameeda Bee</a> </p> <p class="card-text"><strong>Abstract:</strong></p> Employing lignocellulosic biomass in fermentative production of xylitol and bioethanol is gaining interest as it is renewable, cheap, and abundantly available. Xylitol is a polyol, gaining its importance in the food and pharmacological industry due to its low calorific value and anti-cariogenic nature. Bioethanol from lignocellulosic biomass is widely accepted as an alternative fuel for transportation with reduced CO₂ emissions, thus reducing the greenhouse effect. Typha latifolia, an aquatic weed, was found to be promising lignocellulosic substrate as it posses a high amount of sugars and does not compete with arable lands and interfere with food and feed competition. In the present study, xylose from hemicellulosic fraction of typha is converted to xylitol by isolate Jfh5 (Candida. tropicalis) and cellulose part to ethanol using Saccharomyces cerevisiaeVS3. Initially, alkali pretreatment of typha using sodium hydroxide, potassium hydroxide, ammonium hydroxide, calcium hydroxide, sodium bisulphate and sodium dithionate for overnight (18h) at room temperature (28 ± 2°C), resulted in maximum delignification of 75% with 2% (v/v) sodium bisulphate. Later, pretreated biomass was subjected to acid hydrolysis with 1%, 1.5%, 2%, and 3% H₂SO₄ at 110 °C and 121°C for 30 and 60 min, respectively. 2% H₂SO₄ at 121°C for 60 min was found to release 13.5 g /l sugars, which on detoxification and fermentation produced 8.1g/l xylitol with yield and productivity of 0.65g/g and 0.112g/l/h respectively. Further enzymatic hydrolysis of the residual substrate obtained after acid hydrolysis released 11g/l sugar, which on fermentation with VS3 produced 4.9g/l ethanol with yield and productivity of 0.22g/g and 0.136g/l/h respectively. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=delignification" title="delignification">delignification</a>, <a href="https://publications.waset.org/abstracts/search?q=xylitol" title=" xylitol"> xylitol</a>, <a href="https://publications.waset.org/abstracts/search?q=bioethanol" title=" bioethanol"> bioethanol</a>, <a href="https://publications.waset.org/abstracts/search?q=acid%20hydrolysis" title=" acid hydrolysis"> acid hydrolysis</a>, <a href="https://publications.waset.org/abstracts/search?q=enzyme%20hydrolysis" title=" enzyme hydrolysis"> enzyme hydrolysis</a> </p> <a href="https://publications.waset.org/abstracts/121313/pretreatment-of-aquatic-weed-typha-latifolia-with-sodium-bisulphate-for-enhanced-acid-and-enzyme-hydrolysis-for-production-of-xylitol-and-bioethanol" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/121313.pdf" target="_blank" class="btn btn-primary btn-sm">PDF</a> <span class="bg-info text-light px-1 py-1 float-right rounded"> Downloads <span class="badge badge-light">150</span> </span> </div> </div> <div class="card paper-listing mb-3 mt-3"> <h5 class="card-header" style="font-size:.9rem"><span class="badge badge-info">6123</span> The Determination of the Potassium Nitrate, Sodium Hydroxide and Boric Acid Molar Ratio in the Synthesis of Potassium Borates via Hydrothermal Method</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=M.%20Yildirim">M. Yildirim</a>, <a href="https://publications.waset.org/abstracts/search?q=A.%20S.%20Kipcak"> A. S. Kipcak</a>, <a href="https://publications.waset.org/abstracts/search?q=F.%20T.%20Senberber"> F. T. Senberber</a>, <a href="https://publications.waset.org/abstracts/search?q=M.%20O.%20Asensio"> M. O. Asensio</a>, <a href="https://publications.waset.org/abstracts/search?q=E.%20M.%20Derun"> E. M. Derun</a>, <a href="https://publications.waset.org/abstracts/search?q=S.%20Piskin"> S. Piskin</a> </p> <p class="card-text"><strong>Abstract:</strong></p> Potassium borates, which are widely used in welding and metal refining industry, as a lubricating oil additive, cement additive, fiberglass additive and insulation compound, are one of the important groups of borate minerals. In this study the production of a potassium borate mineral via hydrothermal method is aimed. The potassium source of potassium nitrate (KNO3) was used along with a sodium source of sodium hydroxide (NaOH) and boron source of boric acid (H3BO3). The constant parameters of reaction temperature and reaction time were determined as 80°C and 1 h, respectively. The molar ratios of 1:1:3 (as KNO3:NaOH:H3BO3), 1:1:4, 1:1:5, 1:1:6 and 1:1:7 were used. Following the synthesis the identifications of the produced products were conducted by X-Ray Diffraction (XRD) and Fourier Transform Infrared Spectroscopy (FT-IR). The results of the experiments and analysis showed in the ratio of 1:1:6, the Santite mineral with powder diffraction file number (pdf no.) of 01-072-1688, which is known as potassium pentaborate (KB5O8•4H2O) was synthesized as best. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=hydrothermal%20synthesis" title="hydrothermal synthesis">hydrothermal synthesis</a>, <a href="https://publications.waset.org/abstracts/search?q=potassium%20borate" title=" potassium borate"> potassium borate</a>, <a href="https://publications.waset.org/abstracts/search?q=potassium%20nitrate" title=" potassium nitrate"> potassium nitrate</a>, <a href="https://publications.waset.org/abstracts/search?q=santite" title=" santite"> santite</a> </p> <a href="https://publications.waset.org/abstracts/25561/the-determination-of-the-potassium-nitrate-sodium-hydroxide-and-boric-acid-molar-ratio-in-the-synthesis-of-potassium-borates-via-hydrothermal-method" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/25561.pdf" target="_blank" class="btn btn-primary btn-sm">PDF</a> <span class="bg-info text-light px-1 py-1 float-right rounded"> Downloads <span class="badge badge-light">460</span> </span> </div> </div> <div class="card paper-listing mb-3 mt-3"> <h5 class="card-header" style="font-size:.9rem"><span class="badge badge-info">6122</span> Interactive of Calcium, Potassium, and Dynamic Unequal Salt Distribution on the Growth of Tomato in Hydroponic System</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Mohammad%20Koushafar">Mohammad Koushafar</a>, <a href="https://publications.waset.org/abstracts/search?q=Amir%20Hossein%20Khoshgoftarmanesh"> Amir Hossein Khoshgoftarmanesh</a> </p> <p class="card-text"><strong>Abstract:</strong></p> Due to water shortage, application of saline water for irrigation is an urgent requirement in agriculture. Thus, this study, the effect of calcium and potassium application as additive in saline root media for reduce salinity adverse effects was investigated on tomato growth in a hydroponic system with unequal distribution of salts in the root media, which was divided into two equal parts containing full Johnson nutrient solution and 40 mM NaCl solution, alone or in combination with KCl (6 mM), CaCl2 (4 mM), K+Ca (3+2 mM) or half-strength Johnson nutrient solution. The root splits were exchanged every 7 days. Results showed that addition of calcium, calcium-potassium and nutrition elements equivalent to half the concentration of Johnson formula to the saline-half of culture media minimized the reduction in plant growth caused by NaCl, although the addition of potassium to culture media was not effective. The greatest concentration of sodium was observed at the shoot of treatments which had the smallest growth. According to the results of this study, in the case of dynamic and non-uniform distribution of salts in the root media, by the addition of additive to the saline solution, it would be possible to use of saline water with no significant growth reduction. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=calcium" title="calcium">calcium</a>, <a href="https://publications.waset.org/abstracts/search?q=hydroponic" title=" hydroponic"> hydroponic</a>, <a href="https://publications.waset.org/abstracts/search?q=local%20salinity" title=" local salinity"> local salinity</a>, <a href="https://publications.waset.org/abstracts/search?q=potassium" title=" potassium"> potassium</a>, <a href="https://publications.waset.org/abstracts/search?q=salin%20water" title=" salin water"> salin water</a>, <a href="https://publications.waset.org/abstracts/search?q=tomato" title=" tomato"> tomato</a> </p> <a href="https://publications.waset.org/abstracts/16048/interactive-of-calcium-potassium-and-dynamic-unequal-salt-distribution-on-the-growth-of-tomato-in-hydroponic-system" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/16048.pdf" target="_blank" class="btn btn-primary btn-sm">PDF</a> <span class="bg-info text-light px-1 py-1 float-right rounded"> Downloads <span class="badge badge-light">443</span> </span> </div> </div> <div class="card paper-listing mb-3 mt-3"> <h5 class="card-header" style="font-size:.9rem"><span class="badge badge-info">6121</span> The Effect of Potassium Hydroxide on Fine Soil Treated with Olivine</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Abdelmaoula%20Mahamoud%20Tahir">Abdelmaoula Mahamoud Tahir</a>, <a href="https://publications.waset.org/abstracts/search?q=Sedat%20Sert"> Sedat Sert</a> </p> <p class="card-text"><strong>Abstract:</strong></p> The possibility of improving the shear strength of unsaturated clayey soil with the addition of olivine was investigated in this paper. Unconsolidated undrained triaxial tests (UU), under different cell pressures (namely: 100 kPa and 200 kPa), with varying percentages of olivine (10% and 20% by weight) and with one day, 28 days, and 56 days curing times, were performed to determine the shear strength of the soil. The increase in strength was observed as a function of the increase in olivine content. An olivine content of 25% was determined as the optimum value to achieve the targeted improvement for both cure times. A comparative study was also conducted between clay samples treated with only olivine and others in the presence of potassium hydroxide (KOH). Clay samples treated with olivine and activated with potassium hydroxide (KOH) had higher shear strength than non-activated olivine-treated samples. It was determined that the strength of the clay samples treated with only olivine did not increase over time and added resistance only with the high specific gravity of olivine. On the other hand, the samples activated with potassium hydroxide (KOH) added to the resistance with high specific gravity and the chemical bonds of olivine. Morphological and mineralogical analyzes were carried out in this study to see and analyze the chemical bonds formed after the reaction. The main components of this improvement were the formation of magnesium-aluminate-hydrate and magnesium-silicate-hydrate. Compared to older methods such as cement addition, these results show that in stabilizing clayey soils, olivine additive offers an energy-efficient alternative for reducing carbon dioxide emissions. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=ground%20stabilization" title="ground stabilization">ground stabilization</a>, <a href="https://publications.waset.org/abstracts/search?q=clay" title=" clay"> clay</a>, <a href="https://publications.waset.org/abstracts/search?q=olivine%20additive" title=" olivine additive"> olivine additive</a>, <a href="https://publications.waset.org/abstracts/search?q=KOH" title=" KOH"> KOH</a>, <a href="https://publications.waset.org/abstracts/search?q=microstructure" title=" microstructure"> microstructure</a> </p> <a href="https://publications.waset.org/abstracts/158574/the-effect-of-potassium-hydroxide-on-fine-soil-treated-with-olivine" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/158574.pdf" target="_blank" class="btn btn-primary btn-sm">PDF</a> <span class="bg-info text-light px-1 py-1 float-right rounded"> Downloads <span class="badge badge-light">117</span> </span> </div> </div> <div class="card paper-listing mb-3 mt-3"> <h5 class="card-header" style="font-size:.9rem"><span class="badge badge-info">6120</span> Food Package Design To Preserve The Food Temperature</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Sugiono">Sugiono</a>, <a href="https://publications.waset.org/abstracts/search?q=Wuwus%20Ardiatna">Wuwus Ardiatna</a>, <a href="https://publications.waset.org/abstracts/search?q=Himma%20Firdaus">Himma Firdaus</a>, <a href="https://publications.waset.org/abstracts/search?q=Nanang%20Kusnandar">Nanang Kusnandar</a>, <a href="https://publications.waset.org/abstracts/search?q=Bayu%20Utomo">Bayu Utomo</a>, <a href="https://publications.waset.org/abstracts/search?q=Jimmy%20Abdel%20Kadar">Jimmy Abdel Kadar</a> </p> <p class="card-text"><strong>Abstract:</strong></p> This study was aimed to explore the best design of single-used hot food packaging through various package designs. It examined how designed packages keep some local hot food reasonably longer than standard packages. The food packages were realized to consist of the outer and the inner layers of food-grade materials. The packages were evaluated to keep the hot food decreased to the minimum temperature of safe food. This study revealed a significant finding that the transparent plastic box with thin film aluminum foil is the best package. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=hot%20food" title="hot food">hot food</a>, <a href="https://publications.waset.org/abstracts/search?q=local%20food" title="local food">local food</a>, <a href="https://publications.waset.org/abstracts/search?q=one%20used" title="one used">one used</a>, <a href="https://publications.waset.org/abstracts/search?q=packaging" title="packaging">packaging</a>, <a href="https://publications.waset.org/abstracts/search?q=aluminum%20foil" title="aluminum foil">aluminum foil</a> </p> <a href="https://publications.waset.org/abstracts/144647/food-package-design-to-preserve-the-food-temperature" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/144647.pdf" target="_blank" class="btn btn-primary btn-sm">PDF</a> <span class="bg-info text-light px-1 py-1 float-right rounded"> Downloads <span class="badge badge-light">149</span> </span> </div> </div> <div class="card paper-listing mb-3 mt-3"> <h5 class="card-header" style="font-size:.9rem"><span class="badge badge-info">6119</span> Association of Calcium Intake Adequacy with Wealth Indices among Selected Female Adults Living in Depressed and Non-Depressed Area in Metro Manila, Philippines</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Maria%20Viktoria%20Melgo">Maria Viktoria Melgo</a> </p> <p class="card-text"><strong>Abstract:</strong></p> This study aimed to determine the possible association between calcium intake and wealth indices of selected female adults. Specifically, it aimed to: a) determine the calcium intake adequacy of the respondents. b) determine the relationship, if any, between calcium intake adequacy, area and wealth indices. The study used the survey design and employed convenience sampling in selecting participants. Two hundred females aged 20 – 64 years old were covered in the study from depressed and non-depressed areas. Data collected were calcium intake taken from two 24-hour food recall and Food Frequency Questionnaire (FFQ) and wealth indices using housing characteristics, household assets and access to utilities and infrastructure. Descriptive statistics and Chi-square test were used to determine the frequency distribution and association between the given variables, respectively, using Statistical Package for Social Sciences (SPSS) and OpenEpi software. The results showed that there were 86% of respondents in the depressed area with an inadequate calcium intake while there were 78% of respondents in the non-depressed area with an adequate calcium intake. No significant relationship was obtained in most wealth indices with calcium intake adequacy and area but appliance and ownership of main material of the house showed a significant relationship to calcium intake adequacy by area. The study recommends that the Local Government Unit (LGU) should provide seminars or nutrition education that will further enhance the knowledge of the people in the community. The study also recommends to conduct a similar study but with different, larger sample size, different location nonetheless if it is in urban or rural and include the anthropometry measurement of the respondents. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=association" title="association">association</a>, <a href="https://publications.waset.org/abstracts/search?q=calcium%20intake%20adequacy" title=" calcium intake adequacy"> calcium intake adequacy</a>, <a href="https://publications.waset.org/abstracts/search?q=metro%20Manila" title=" metro Manila"> metro Manila</a>, <a href="https://publications.waset.org/abstracts/search?q=Philippines" title=" Philippines"> Philippines</a>, <a href="https://publications.waset.org/abstracts/search?q=wealth%20indices" title=" wealth indices"> wealth indices</a> </p> <a href="https://publications.waset.org/abstracts/75428/association-of-calcium-intake-adequacy-with-wealth-indices-among-selected-female-adults-living-in-depressed-and-non-depressed-area-in-metro-manila-philippines" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/75428.pdf" target="_blank" class="btn btn-primary btn-sm">PDF</a> <span class="bg-info text-light px-1 py-1 float-right rounded"> Downloads <span class="badge badge-light">196</span> </span> </div> </div> <div class="card paper-listing mb-3 mt-3"> <h5 class="card-header" style="font-size:.9rem"><span class="badge badge-info">6118</span> Logistic Regression Model versus Additive Model for Recurrent Event Data</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Entisar%20A.%20Elgmati">Entisar A. Elgmati</a> </p> <p class="card-text"><strong>Abstract:</strong></p> Recurrent infant diarrhea is studied using daily data collected in Salvador, Brazil over one year and three months. A logistic regression model is fitted instead of Aalen's additive model using the same covariates that were used in the analysis with the additive model. The model gives reasonably similar results to that using additive regression model. In addition, the problem with the estimated conditional probabilities not being constrained between zero and one in additive model is solved here. Also martingale residuals that have been used to judge the goodness of fit for the additive model are shown to be useful for judging the goodness of fit of the logistic model. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=additive%20model" title="additive model">additive model</a>, <a href="https://publications.waset.org/abstracts/search?q=cumulative%20probabilities" title=" cumulative probabilities"> cumulative probabilities</a>, <a href="https://publications.waset.org/abstracts/search?q=infant%20diarrhoea" title=" infant diarrhoea"> infant diarrhoea</a>, <a href="https://publications.waset.org/abstracts/search?q=recurrent%20event" title=" recurrent event"> recurrent event</a> </p> <a href="https://publications.waset.org/abstracts/27829/logistic-regression-model-versus-additive-model-for-recurrent-event-data" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/27829.pdf" target="_blank" class="btn btn-primary btn-sm">PDF</a> <span class="bg-info text-light px-1 py-1 float-right rounded"> Downloads <span class="badge badge-light">635</span> </span> </div> </div> <div class="card paper-listing mb-3 mt-3"> <h5 class="card-header" style="font-size:.9rem"><span class="badge badge-info">6117</span> Some Observations on the Preparation of Zinc Hydroxide Nitrate Nanoparticles</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Krasimir%20Ivanov">Krasimir Ivanov</a>, <a href="https://publications.waset.org/abstracts/search?q=Elitsa%20Kolentsova"> Elitsa Kolentsova</a>, <a href="https://publications.waset.org/abstracts/search?q=Nguyen%20Nguyen"> Nguyen Nguyen</a>, <a href="https://publications.waset.org/abstracts/search?q=Alexander%20Peltekov"> Alexander Peltekov</a>, <a href="https://publications.waset.org/abstracts/search?q=Violina%20Angelova"> Violina Angelova</a> </p> <p class="card-text"><strong>Abstract:</strong></p> The nanosized zinc hydroxide nitrate has been recently estimated as perspective foliar fertilizer, which has improved zinc solubility, but low phytotoxicity, in comparison with ZnO and other Zn containing compounds. The main problem is obtaining of stable particles with dimensions less than 100 nm. This work studies the effect of preparation conditions on the chemical compositions and particle size of the zinc hydroxide nitrates, prepared by precipitation. Zn(NO3)2.6H2O and NaOH with concentrations, ranged from 0.2 to 3.2M and the initial OH/Zn ratio from 0.5 to 1.6 were used at temperatures from 20 to 60 °C. All samples were characterized in detail by X-ray diffraction, scanning electron microscopy, differential thermal analysis and ICP. Stability and distribution of the zinc hydroxide nitrate particles were estimated too. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=zinc%20hydroxide%20nitrate" title="zinc hydroxide nitrate">zinc hydroxide nitrate</a>, <a href="https://publications.waset.org/abstracts/search?q=nanoparticles" title=" nanoparticles"> nanoparticles</a>, <a href="https://publications.waset.org/abstracts/search?q=preparation" title=" preparation"> preparation</a>, <a href="https://publications.waset.org/abstracts/search?q=foliar%20fertilizer" title=" foliar fertilizer"> foliar fertilizer</a> </p> <a href="https://publications.waset.org/abstracts/53436/some-observations-on-the-preparation-of-zinc-hydroxide-nitrate-nanoparticles" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/53436.pdf" target="_blank" class="btn btn-primary btn-sm">PDF</a> <span class="bg-info text-light px-1 py-1 float-right rounded"> Downloads <span class="badge badge-light">349</span> </span> </div> </div> <div class="card paper-listing mb-3 mt-3"> <h5 class="card-header" style="font-size:.9rem"><span class="badge badge-info">6116</span> The Vulnerability of Farmers in Valencia Negros Oriental to Climate Change: El Niño Phenomenon and Malnutrition</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=J.%20K.%20Pis-An">J. K. Pis-An</a> </p> <p class="card-text"><strong>Abstract:</strong></p> Objective: The purpose of the study was to examine the vulnerability of farmers to the effects of climate change, specifically the El Niño phenomenon was felt in the Philippines in 2009-2010. Methods: KAP Survey determines behavioral response to vulnerability to the effects of El Niño. Body Mass Index: Dietary Assessment using 24-hour food recall. Results: 75% of the respondents claimed that crop significantly decreased during drought. Indications that households of farmers are large where 51.6% are composed of 6-10 family members with 68% annual incomes below Php 100,00. Anthropometric assessment showed that the prevalence of Chronic Energy Deficiency Grade 1 among females 17% and 28.57% for low normal. While male body mass index result for chronic energy deficiency grade 1 10%, low normal 18.33% and and obese grade 1, 31.67%. Dietary assessment of macronutrient intake of carbohydrates, protein, and fat 31.6 % among respondents are below recommended amounts. Micronutrient deficiency of calcium, iron, vit. A, thiamine, riboflavin, niacin, and Vit. C. Conclusion: Majority of the rural populations are engaged into farming livelihood that makes up the backbone of their economic growth. Placing the current nutritional status of the farmers in the context of food security, there are reasons to believe that the status will go for worse if the extreme climatic conditions will once again prevail in the region. Farmers rely primarily on home grown crops for their food supply, a reduction in farm production during drought is expected to adversely affect dietary intake. The local government therefore institute programs to increase food resiliency and to prioritize health of the population as the moving force for productivity and development. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=world%20health%20organization" title="world health organization">world health organization</a>, <a href="https://publications.waset.org/abstracts/search?q=united%20nation%20framework%20convention%20on%20climate%20change" title=" united nation framework convention on climate change"> united nation framework convention on climate change</a>, <a href="https://publications.waset.org/abstracts/search?q=anthropometric" title=" anthropometric"> anthropometric</a>, <a href="https://publications.waset.org/abstracts/search?q=macronutrient" title=" macronutrient"> macronutrient</a>, <a href="https://publications.waset.org/abstracts/search?q=micronutrient" title=" micronutrient"> micronutrient</a> </p> <a href="https://publications.waset.org/abstracts/18182/the-vulnerability-of-farmers-in-valencia-negros-oriental-to-climate-change-el-nino-phenomenon-and-malnutrition" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/18182.pdf" target="_blank" class="btn btn-primary btn-sm">PDF</a> <span class="bg-info text-light px-1 py-1 float-right rounded"> Downloads <span class="badge badge-light">444</span> </span> </div> </div> <div class="card paper-listing mb-3 mt-3"> <h5 class="card-header" style="font-size:.9rem"><span class="badge badge-info">6115</span> Determination of Mineral Elements in Some Coarse Grains Used as Staple Food in Kano, Nigeria</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=M.%20I.%20Mohammed">M. I. Mohammed</a>, <a href="https://publications.waset.org/abstracts/search?q=U.%20M.%20Ahmad"> U. M. Ahmad</a> </p> <p class="card-text"><strong>Abstract:</strong></p> Analyses of mineral elements were carried out on some coarse grains used as staple food in Kano. The levels of Magnesium, Calcium, Manganese, Iron, Copper and Zinc were determined using atomic absorption spectrophotometer (AAS), and that of Sodium and Potassium were obtained using flame photometer (FES). The result of the study shows that the mean results of the mineral elements ranged from 62.50±0.55 - 84.82±0.74mg/kg sodium, 73.33±0.35 - 317±0.10mg/kg magnesium, 89.22±0.26 - 193.33±0.19mg/kg potassium, 70.00±0.52 - 186.67±0.29mg/kg calcium, 1.00±0.11 - 20.50±1.30mg/kg manganese, 25.00±0.11 - 80.50±0.36mg/kg iron. 4.00±0.08 - 13.00±0.24mg/kg copper and 15.00±0.34 - 50.50±0.24 zinc. There was significant difference (p < 0.05) in levels of sodium, potassium and calcium whereas no significant difference (p > 0.05) occurs in levels of magnesium, manganese, copper and zinc. In comparison with Recommended Daily Allowances of essential and trace metals set by international standard organizations, the coarse grains analysed in this work contribute little to the provision of essential and trace elements requirements. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=mineral%20elements" title="mineral elements">mineral elements</a>, <a href="https://publications.waset.org/abstracts/search?q=coarse%20grains" title=" coarse grains"> coarse grains</a>, <a href="https://publications.waset.org/abstracts/search?q=staple%20food" title=" staple food"> staple food</a>, <a href="https://publications.waset.org/abstracts/search?q=Kano" title=" Kano"> Kano</a>, <a href="https://publications.waset.org/abstracts/search?q=Nigeria" title=" Nigeria"> Nigeria</a> </p> <a href="https://publications.waset.org/abstracts/41203/determination-of-mineral-elements-in-some-coarse-grains-used-as-staple-food-in-kano-nigeria" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/41203.pdf" target="_blank" class="btn btn-primary btn-sm">PDF</a> <span class="bg-info text-light px-1 py-1 float-right rounded"> Downloads <span class="badge badge-light">276</span> </span> </div> </div> <div class="card paper-listing mb-3 mt-3"> <h5 class="card-header" style="font-size:.9rem"><span class="badge badge-info">6114</span> Focus on the Bactericidal Efficacies of Alkaline Agents in Solid and the Required Time for Bacterial Inactivation</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Hakimullah%20Hakim">Hakimullah Hakim</a>, <a href="https://publications.waset.org/abstracts/search?q=Chiharu%20Toyofuku"> Chiharu Toyofuku</a>, <a href="https://publications.waset.org/abstracts/search?q=Mari%20Ota"> Mari Ota</a>, <a href="https://publications.waset.org/abstracts/search?q=Mayuko%20Suzuki"> Mayuko Suzuki</a>, <a href="https://publications.waset.org/abstracts/search?q=Miyuki%20Komura"> Miyuki Komura</a>, <a href="https://publications.waset.org/abstracts/search?q=Masashi%20Yamada"> Masashi Yamada</a>, <a href="https://publications.waset.org/abstracts/search?q=Md.%20Shahin%20Alam"> Md. Shahin Alam</a>, <a href="https://publications.waset.org/abstracts/search?q=Natthanan%20Sangsriratanakul"> Natthanan Sangsriratanakul</a>, <a href="https://publications.waset.org/abstracts/search?q=Dany%20Shoham"> Dany Shoham</a>, <a href="https://publications.waset.org/abstracts/search?q=Kazuaki%20Takehara"> Kazuaki Takehara</a> </p> <p class="card-text"><strong>Abstract:</strong></p> Disinfectants and their application are essential part of infection control strategies and enhancement of biosecurity at farms, worldwide. Alkaline agents are well known for their strong and long term antimicrobial capacities and most frequently are applied at farms for control and prevention of biological hazards. However, inadequate information regarding such materials’ capacities to inactivate pathogens and their improper applications fail farmers to achieve the mentioned goal. Thus, this requires attention to further evaluate their efficacies, under different conditions and in different ways. Here in this study we evaluated bactericidal efficacies of food additive grade of calcium hydroxide (FdCa(OH)2) powder derived from natural calcium carbonates obtained from limestone (Fine Co., Ltd., Tokyo, Japan), and bioceramic powder (BCX) derived from chicken feces at pH 13 (NMG environmental development Co., Ltd., Tokyo, Japan), for their efficacies to inactivate bacteria in feces. [Materials & Methods] Chicken feces were inoculated by 100 µl Escherichia coli and Salmonella Infantis in falcon tubes, individually, then FdCa(OH)2 or BCX powders were individually added to make final concentration of 0, 5, 10, 20 and 30% (w/w) in total weight of 0.5g, followed by properly mixing and incubating at room temperature for certain periods of time, in a dark place. Afterwards, 10 ml 1M Tris-HCl (pH 7.2) was added onto them to reduce their pH, in order to stop powders’ activities and to harvest the remained viable bacteria, whereas using normal medium or dW2 to recover bacteria increases the mixture pH, and as a result bacteria would be inactivated soon; therefore, the latter practice brings about incorrect and misleading results. Samples were then inoculated on DHL agar plates in order to calculate colony forming units (CFU)/ml of viable bacteria. [Results and Discussion] FdCa(OH)2 powder at 10% and 5% required 3 hr and 6 hr exposure times, respectively, while BCX powder at 20% concentrations required 6 hr exposure time to kill the mentioned bacteria in feces down to lower than detectable level (≤ 3.6 log10 CFU/ml). This study confirmed capacities of FdCa(OH)2 and BCX powders to inactivate bacteria in feces, and both materials are environment friendly materials, with no risk to human or animal’s health. This finding helps farmers to properly apply alkaline agents in appropriate concentrations and exposure times in their farms, in order to prevent and control infectious diseases outbreaks and to enhance biosecurity. Finally, this finding may help farmers to implement better strategies for infections control in their livestock farms. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=bacterial%20inactivation" title="bacterial inactivation">bacterial inactivation</a>, <a href="https://publications.waset.org/abstracts/search?q=bioceramic" title=" bioceramic"> bioceramic</a>, <a href="https://publications.waset.org/abstracts/search?q=biosecurity%20at%20livestock%20farms" title=" biosecurity at livestock farms"> biosecurity at livestock farms</a>, <a href="https://publications.waset.org/abstracts/search?q=chicken%20feces" title=" chicken feces"> chicken feces</a> </p> <a href="https://publications.waset.org/abstracts/49905/focus-on-the-bactericidal-efficacies-of-alkaline-agents-in-solid-and-the-required-time-for-bacterial-inactivation" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/49905.pdf" target="_blank" class="btn btn-primary btn-sm">PDF</a> <span class="bg-info text-light px-1 py-1 float-right rounded"> Downloads <span class="badge badge-light">440</span> </span> </div> </div> <div class="card paper-listing mb-3 mt-3"> <h5 class="card-header" style="font-size:.9rem"><span class="badge badge-info">6113</span> Can Bone Resorption Reduce with Nanocalcium Particles in Astronauts?</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Ravi%20Teja%20Mandapaka">Ravi Teja Mandapaka</a>, <a href="https://publications.waset.org/abstracts/search?q=Prasanna%20Kumar%20Kukkamalla"> Prasanna Kumar Kukkamalla</a> </p> <p class="card-text"><strong>Abstract:</strong></p> Poor absorption of calcium, elevated levels in serum and loss of bone are major problems of astronauts during space travel. Supplementation of calcium could not reveal this problem. In normal condition only 33% of calcium is absorbed from dietary sources. In this paper effect of space environment on calcium metabolism was discussed. Many surprising study findings were found during literature survey. Clinical trials on ovariectomized mice showed that reduction of calcium particles to nano level make them more absorbable and bioavailable. Control of bone loss in astronauts in critical important In Fortification of milk with nana calcium particles showed reduces urinary pyridinoline, deoxypyridinoline levels. Dietary calcium and supplementation do not show much retention of calcium in zero gravity environment where absorption is limited. So, the fortification of foods with nano calcium particles seemed beneficial for astronauts during and after space travel in their speedy recovery. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=nano%20calcium" title="nano calcium">nano calcium</a>, <a href="https://publications.waset.org/abstracts/search?q=astronauts" title=" astronauts"> astronauts</a>, <a href="https://publications.waset.org/abstracts/search?q=fortification" title=" fortification"> fortification</a>, <a href="https://publications.waset.org/abstracts/search?q=supplementation" title=" supplementation"> supplementation</a> </p> <a href="https://publications.waset.org/abstracts/30899/can-bone-resorption-reduce-with-nanocalcium-particles-in-astronauts" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/30899.pdf" target="_blank" class="btn btn-primary btn-sm">PDF</a> <span class="bg-info text-light px-1 py-1 float-right rounded"> Downloads <span class="badge badge-light">494</span> </span> </div> </div> <div class="card paper-listing mb-3 mt-3"> <h5 class="card-header" style="font-size:.9rem"><span class="badge badge-info">6112</span> Development and Evaluation of New Complementary Food from Maize, Soya Bean and Moringa for Young Children</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Berhan%20Fikru">Berhan Fikru</a> </p> <p class="card-text"><strong>Abstract:</strong></p> The objective of this study was to develop new complementary food from maize, soybean and moringa for young children. The complementary foods were formulated with linear programming (LP Nutri-survey software) and Faffa (corn soya blend) use as control. Analysis were made for formulated blends and compared with the control and recommended daily intake (RDI). Three complementary foods composed of maize, soya bean, moringa and sugar with ratio of 65:20:15:0, 55:25:15:5 and 65:20:10:5 for blend 1, 2 and 3, respectively. The blends were formulated based on the protein, energy, mineral (iron, zinc an calcium) and vitamin (vitamin A and C) content of foods. The overall results indicated that nutrient content of faffa (control) was 16.32 % protein, 422.31 kcal energy, 64.47 mg calcium, 3.8 mg iron, 1.87mg zinc, 0.19 mg vitamin A and 1.19 vitamin C; blend 1 had 17.16 % protein, 429.84 kcal energy, 330.40 mg calcium, 6.19 mg iron, 1.62 mg zinc, 6.33 mg vitamin A and 4.05 mg vitamin C; blend 2 had 20.26 % protein, 418.79 kcal energy, 417.44 mg calcium, 9.26 mg iron, 2.16 mg zinc, 8.43 mg vitamin A and 4.19 mg vitamin C whereas blend 3 exhibited 16.44 % protein, 417.42 kcal energy, 242.4 mg calcium, 7.09 mg iron, 2.22 mg zinc, 3.69 mg vitamin A and 4.72 mg vitamin C, respectively. The difference was found between all means statically significance (P < 0.05). Sensory evaluation showed that the faffa control and blend 3 were preferred by semi-trained panelists. Blend 3 had better in terms of its mineral and vitamin content than FAFFA corn soya blend and comparable with WFP proprietary products CSB+, CSB++ and fulfills the WHO recommendation for protein, energy and calcium. The suggested formulation with Moringa powder can therefore be used as a complementary food to improve the nutritional status and also help solve problems associated with protein energy and micronutrient malnutrition for young children in developing countries, particularly in Ethiopia. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=corn%20soya%20blend" title="corn soya blend">corn soya blend</a>, <a href="https://publications.waset.org/abstracts/search?q=proximate%20composition" title=" proximate composition"> proximate composition</a>, <a href="https://publications.waset.org/abstracts/search?q=micronutrient" title=" micronutrient"> micronutrient</a>, <a href="https://publications.waset.org/abstracts/search?q=mineral%20chelating%20agents" title=" mineral chelating agents"> mineral chelating agents</a>, <a href="https://publications.waset.org/abstracts/search?q=complementary%20foods" title=" complementary foods"> complementary foods</a> </p> <a href="https://publications.waset.org/abstracts/44110/development-and-evaluation-of-new-complementary-food-from-maize-soya-bean-and-moringa-for-young-children" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/44110.pdf" target="_blank" class="btn btn-primary btn-sm">PDF</a> <span class="bg-info text-light px-1 py-1 float-right rounded"> Downloads <span class="badge badge-light">295</span> </span> </div> </div> <div class="card paper-listing mb-3 mt-3"> <h5 class="card-header" style="font-size:.9rem"><span class="badge badge-info">6111</span> Numerical Model to Study Calcium and Inositol 1,4,5-Trisphosphate Dynamics in a Myocyte Cell</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Nisha%20Singh">Nisha Singh</a>, <a href="https://publications.waset.org/abstracts/search?q=Neeru%20Adlakha"> Neeru Adlakha</a> </p> <p class="card-text"><strong>Abstract:</strong></p> Calcium signalling is one of the most important intracellular signalling mechanisms. A lot of approaches and investigators have been made in the study of calcium signalling in various cells to understand its mechanisms over recent decades. However, most of existing investigators have mainly focussed on the study of calcium signalling in various cells without paying attention to the dependence of calcium signalling on other chemical ions like inositol-1; 4; 5 triphosphate ions, etc. Some models for the independent study of calcium signalling and inositol-1; 4; 5 triphosphate signalling in various cells are present but very little attention has been paid by the researchers to study the interdependence of these two signalling processes in a cell. In this paper, we propose a coupled mathematical model to understand the interdependence of inositol-1; 4; 5 triphosphate dynamics and calcium dynamics in a myocyte cell. Such studies will provide the deeper understanding of various factors involved in calcium signalling in myocytes, which may be of great use to biomedical scientists for various medical applications. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=calcium%20signalling" title="calcium signalling">calcium signalling</a>, <a href="https://publications.waset.org/abstracts/search?q=coupling" title=" coupling"> coupling</a>, <a href="https://publications.waset.org/abstracts/search?q=finite%20difference%20method" title=" finite difference method"> finite difference method</a>, <a href="https://publications.waset.org/abstracts/search?q=inositol%201" title=" inositol 1"> inositol 1</a>, <a href="https://publications.waset.org/abstracts/search?q=4" title=" 4"> 4</a>, <a href="https://publications.waset.org/abstracts/search?q=5-triphosphate" title=" 5-triphosphate"> 5-triphosphate</a> </p> <a href="https://publications.waset.org/abstracts/68214/numerical-model-to-study-calcium-and-inositol-145-trisphosphate-dynamics-in-a-myocyte-cell" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/68214.pdf" target="_blank" class="btn btn-primary btn-sm">PDF</a> <span class="bg-info text-light px-1 py-1 float-right rounded"> Downloads <span class="badge badge-light">292</span> </span> </div> </div> <div class="card paper-listing mb-3 mt-3"> <h5 class="card-header" style="font-size:.9rem"><span class="badge badge-info">6110</span> Obtaining Nutritive Powder from Peel of Mangifera Indica L. (Mango) as a Food Additive</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Chajira%20Garrote">Chajira Garrote</a>, <a href="https://publications.waset.org/abstracts/search?q=Laura%20Arango"> Laura Arango</a>, <a href="https://publications.waset.org/abstracts/search?q=Lourdes%20Merino"> Lourdes Merino</a> </p> <p class="card-text"><strong>Abstract:</strong></p> This research explains how to obtain nutritious powder from a variety of ripe mango peels Hilacha (Mangifera indica L.) to use it as a food additive. Also, this study intends to use efficiently the by-products resulting from the operations of mango pulp manufacturing process by processing companies with the aim of giving them an added value. The physical and chemical characteristics of the mango peels and the benefits that may help humans, were studied. Unit operations are explained for the processing of mango peels and the production of nutritive powder as a food additive. Emphasis is placed on the preliminary operations applied to the raw material and on the drying method, which is very important in this project to obtain the suitable characteristics of the nutritive powder. Once the powder was obtained, it was subjected to laboratory tests to determine its functional properties: water retention capacity (WRC) and oil retention capacity (ORC), also a sensory analysis for the powder was performed to determine the product profile. The nutritive powder from the ripe mango peels reported excellent WRC and ORC values: 7.236 g of water / g B.S. and 1.796 g water / g B.S. respectively and the sensory analysis defined a complete profile of color, odor and texture of the nutritive powder, which is suitable to use it in the food industry. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=mango" title="mango">mango</a>, <a href="https://publications.waset.org/abstracts/search?q=peel" title=" peel"> peel</a>, <a href="https://publications.waset.org/abstracts/search?q=powder" title=" powder"> powder</a>, <a href="https://publications.waset.org/abstracts/search?q=nutritive" title=" nutritive"> nutritive</a>, <a href="https://publications.waset.org/abstracts/search?q=functional%20properties" title=" functional properties"> functional properties</a>, <a href="https://publications.waset.org/abstracts/search?q=sensory%20analysis" title=" sensory analysis"> sensory analysis</a> </p> <a href="https://publications.waset.org/abstracts/72515/obtaining-nutritive-powder-from-peel-of-mangifera-indica-l-mango-as-a-food-additive" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/72515.pdf" target="_blank" class="btn btn-primary btn-sm">PDF</a> <span class="bg-info text-light px-1 py-1 float-right rounded"> Downloads <span class="badge badge-light">356</span> </span> </div> </div> <div class="card paper-listing mb-3 mt-3"> <h5 class="card-header" style="font-size:.9rem"><span class="badge badge-info">6109</span> Effect of Sodium Hydroxide on Geotechnical Properties of Soft Soil in Kathmandu Valley</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Bal%20Deep%20Sharma">Bal Deep Sharma</a>, <a href="https://publications.waset.org/abstracts/search?q=Suresh%20Ray%20Yadav"> Suresh Ray Yadav</a> </p> <p class="card-text"><strong>Abstract:</strong></p> Local soils are often chosen due to their widespread availability and low cost. However, these soils typically have poor durability, which can lead to significant limitations in their use for construction. To address this issue, various soil stabilization techniques have been developed and used over the years. This study investigates the viability of employing the mineral polymerization (MIP) technique to stabilize black soils, intending to enhance their suitability for construction applications. This technique involves the microstructural transformation of certain clay minerals into solid and stable compounds exhibiting characteristics similar to hydroxy sodalite, feldspathoid, or zeolite. This transformation occurs through the action of an alkaline reactant at atmospheric pressure and low temperature. The soil sample was characterized using grain size distribution, Atterberg limit test, organic content test, and pH-value tests. The unconfined compressive strength of the soil specimens, prepared with varying percentages of sodium hydroxide as an additive and sand as a filler by weight, was determined at the optimum moisture content. The unconfined compressive strength of the specimens was tested under three different conditions: dry, wet, and cycling. The maximum unconfined compressive strengths were 77.568 kg/cm², 38.85 kg/cm², and 56.3 kg/cm² for the dry, wet, and cycling specimens, respectively, while the unconfined compressive strength of the untreated soil was 7.38 kg/cm². The minimum unconfined compressive strength of the wet and cycling specimens was greater than that of the untreated soil. Based on these findings, it can be concluded that these soils can be effectively used as construction material after treatment with sodium hydroxide. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=soil%20stabilization%20technique" title="soil stabilization technique">soil stabilization technique</a>, <a href="https://publications.waset.org/abstracts/search?q=soft%20soil%20treatment" title=" soft soil treatment"> soft soil treatment</a>, <a href="https://publications.waset.org/abstracts/search?q=sodium%20hydroxide" title=" sodium hydroxide"> sodium hydroxide</a>, <a href="https://publications.waset.org/abstracts/search?q=unconfined%20compressive%20strength" title=" unconfined compressive strength"> unconfined compressive strength</a> </p> <a href="https://publications.waset.org/abstracts/183467/effect-of-sodium-hydroxide-on-geotechnical-properties-of-soft-soil-in-kathmandu-valley" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/183467.pdf" target="_blank" class="btn btn-primary btn-sm">PDF</a> <span class="bg-info text-light px-1 py-1 float-right rounded"> Downloads <span class="badge badge-light">80</span> </span> </div> </div> <div class="card paper-listing mb-3 mt-3"> <h5 class="card-header" style="font-size:.9rem"><span class="badge badge-info">6108</span> Development and Evaluation of a Calcium Rich Plant-Based Supplement on Bone Turnover of Peri and Post Menopausal Women</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Gayathri.G">Gayathri.G</a>, <a href="https://publications.waset.org/abstracts/search?q=Hemamalini.A.J"> Hemamalini.A.J</a>, <a href="https://publications.waset.org/abstracts/search?q=Chandrasekaran.A"> Chandrasekaran.A</a> </p> <p class="card-text"><strong>Abstract:</strong></p> Problem statement: Nutritional deficiency, especially calcium, may lead to poor bone formation and mineralization. Although there are plenty of synthetic supplements available, it is essential to make a calcium rich food supplement accessible to combat calcium deficiency that could be readily prepared at the household level. Thus the current study aimed to formulate and standardize an indigenous low-cost calcium-rich food supplement and to study the impact of supplementation on the bone resorption and formation markers. Methods: A Randomized controlled trial was conducted with 60 subjects distributed equally in control and experimental groups, including perimenopausal and postmenopausal women. A plant-based calcium-rich product was developed and supplemented in form of balls as a midmorning and evening snack by addition of optimized proportions of leaves of Sesbania Grandiflora, seeds of Sesamum indicum, Eleusine coracana, Glycine max, Vigna mungo for a period of 6 months. Postmenopausal and perimenopausal women received 1200mg and 800mg of calcium per day from the supplemented, respectively. Outcome measures like serum calcium; betacrosslaps (bone resorption marker) and total P1NP (bone absorption marker) were assessed after 3 months and after 6 months. Results: There were no significant changes seen in the serum calcium and total P1NP levels (bone formation marker) among the subjects during the supplementation period. The bone resorption marker (betacrosslaps) reduced in all the groups and the reduction (0.32 ± 0.130 ng/ml to 0.25 ± 0.130 ng/ml) was found to be statistically highly significant (p < 0.01) in experimental group of perimenopausal subjects and significant (p < 0.05) in experimental group of postmenopausal subjects (1.11 ± 0.290 ng/ml to 0.42 ± 0.263 ng/ml). Conclusion: With the current severe calcium deficiency in the Indian population, integrating low-cost, calcium-rich native foods that could be readily prepared at household level would be useful in raising the nutritional consumption of calcium, which would, in turn, decrease bone turnover. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=calcium" title="calcium">calcium</a>, <a href="https://publications.waset.org/abstracts/search?q=sesbania%20grandiflora" title=" sesbania grandiflora"> sesbania grandiflora</a>, <a href="https://publications.waset.org/abstracts/search?q=sesamum%20indicum" title=" sesamum indicum"> sesamum indicum</a>, <a href="https://publications.waset.org/abstracts/search?q=eleusine%20coracana" title=" eleusine coracana"> eleusine coracana</a>, <a href="https://publications.waset.org/abstracts/search?q=glycine%20max" title=" glycine max"> glycine max</a>, <a href="https://publications.waset.org/abstracts/search?q=vigna%20mungo" title=" vigna mungo"> vigna mungo</a>, <a href="https://publications.waset.org/abstracts/search?q=postmenopause" title=" postmenopause"> postmenopause</a>, <a href="https://publications.waset.org/abstracts/search?q=perimenopause" title=" perimenopause"> perimenopause</a>, <a href="https://publications.waset.org/abstracts/search?q=bone%20resorption" title=" bone resorption"> bone resorption</a>, <a href="https://publications.waset.org/abstracts/search?q=bone%20absorption" title=" bone absorption"> bone absorption</a>, <a href="https://publications.waset.org/abstracts/search?q=betacrosslaps" title=" betacrosslaps"> betacrosslaps</a>, <a href="https://publications.waset.org/abstracts/search?q=total%20P1NP" title=" total P1NP"> total P1NP</a> </p> <a href="https://publications.waset.org/abstracts/109842/development-and-evaluation-of-a-calcium-rich-plant-based-supplement-on-bone-turnover-of-peri-and-post-menopausal-women" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/109842.pdf" target="_blank" class="btn btn-primary btn-sm">PDF</a> <span class="bg-info text-light px-1 py-1 float-right rounded"> Downloads <span class="badge badge-light">134</span> </span> </div> </div> <div class="card paper-listing mb-3 mt-3"> <h5 class="card-header" style="font-size:.9rem"><span class="badge badge-info">6107</span> A Study for Effective CO2 Sequestration of Hydrated Cement by Direct Aqueous Carbonation </h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Hyomin%20Lee">Hyomin Lee</a>, <a href="https://publications.waset.org/abstracts/search?q=Jinhyun%20Lee"> Jinhyun Lee</a>, <a href="https://publications.waset.org/abstracts/search?q=Jinyeon%20Hwang"> Jinyeon Hwang</a>, <a href="https://publications.waset.org/abstracts/search?q=Younghoon%20Choi"> Younghoon Choi</a>, <a href="https://publications.waset.org/abstracts/search?q=Byeongseo%20Son"> Byeongseo Son</a> </p> <p class="card-text"><strong>Abstract:</strong></p> Global warming is a world-wide issue. Various carbon capture and storage (CCS) technologies for reducing CO2 concentration in the atmosphere have been increasingly studied. Mineral carbonation is one of promising method for CO2 sequestration. Waste cement generating from aggregate recycling processes of waste concrete is potentially a good raw material containing reactive components for mineral carbonation. The major goal of our long-term project is to developed effective methods for CO2 sequestration using waste cement. In the present study, the carbonation characteristics of hydrated cement were examined by conducting two different direct aqueous carbonation experiments. We also evaluate the influence of NaCl and MgCl2 as additives to increase mineral carbonation efficiency of hydrated cement. Cement paste was made with W:C= 6:4 and stored for 28 days in water bath. The prepared cement paste was pulverized to the size less than 0.15 mm. 15 g of pulverized cement paste and 200 ml of solutions containing additives were reacted in ambient temperature and pressure conditions. 1M NaCl and 0.25 M MgCl2 was selected for additives after leaching test. Two different sources of CO2 was applied for direct aqueous carbonation experiment: 0.64 M NaHCO3 was used for CO2 donor in method 1 and pure CO2 gas (99.9%) was bubbling into reacting solution at the flow rate of 20 ml/min in method 2. The pH and Ca ion concentration were continuously measured with pH/ISE Multiparameter to observe carbonation behaviors. Material characterization of reacted solids was performed by TGA, XRD, SEM/EDS analyses. The carbonation characteristics of hydrated cement were significantly different with additives. Calcite was a dominant calcium carbonate mineral after the two carbonation experiments with no additive and NaCl additive. The significant amount of aragonite and vaterite as well as very fine calcite of poorer crystallinity was formed with MgCl2 additive. CSH (calcium silicate hydrate) in hydrated cement were changed to MSH (magnesium silicate hydrate). This transformation contributed to the high carbonation efficiency. Carbonation experiment with method 1 revealed that that the carbonation of hydrated cement took relatively long time in MgCl2 solution compared to that in NaCl solution and the contents of aragonite and vaterite were increased as increasing reaction time. In order to maximize carbonation efficiency in direct aqueous carbonation with CO2 gas injection (method 2), the control of solution pH was important. The solution pH was decreased with injection of CO2 gas. Therefore, the carbonation efficiency in direct aqueous carbonation was closely related to the stability of calcium carbonate minerals with pH changes. With no additive and NaCl additive, the maximum carbonation was achieved when the solution pH was greater than 11. Calcium carbonate form by mineral carbonation seemed to be re-dissolved as pH decreased below 11 with continuous CO2 gas injection. The type of calcium carbonate mineral formed during carbonation in MgCl2 solution was closely related to the variation of solution pH caused by CO2 gas injection. The amount of aragonite significantly increased with decreasing solution pH, whereas the amount of calcite decreased. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=CO2%20sequestration" title="CO2 sequestration">CO2 sequestration</a>, <a href="https://publications.waset.org/abstracts/search?q=Mineral%20carbonation" title=" Mineral carbonation"> Mineral carbonation</a>, <a href="https://publications.waset.org/abstracts/search?q=Cement%20and%20concrete" title=" Cement and concrete"> Cement and concrete</a>, <a href="https://publications.waset.org/abstracts/search?q=MgCl2%20and%20NaCl" title=" MgCl2 and NaCl"> MgCl2 and NaCl</a> </p> <a href="https://publications.waset.org/abstracts/17240/a-study-for-effective-co2-sequestration-of-hydrated-cement-by-direct-aqueous-carbonation" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/17240.pdf" target="_blank" class="btn btn-primary btn-sm">PDF</a> <span class="bg-info text-light px-1 py-1 float-right rounded"> Downloads <span class="badge badge-light">379</span> </span> </div> </div> <div class="card paper-listing mb-3 mt-3"> <h5 class="card-header" style="font-size:.9rem"><span class="badge badge-info">6106</span> Combinatory Nutrition Supplementation: A Case of Synergy for Increasing Calcium Bioavailability</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Daniel%20C.%20S.%20Lim">Daniel C. S. Lim</a>, <a href="https://publications.waset.org/abstracts/search?q=Eric%20Y.%20M.%20Yeo"> Eric Y. M. Yeo</a>, <a href="https://publications.waset.org/abstracts/search?q=W.%20Y.%20Tan"> W. Y. Tan </a> </p> <p class="card-text"><strong>Abstract:</strong></p> This paper presents an overview of how calcium interacts with the various essential nutrients within an environment of cellular and hormonal interactions for the purpose of increasing bioavailability to the human body. One example of such interactions can be illustrated with calcium homeostasis. This paper gives an in-depth discussion on the possible interactive permutations with various nutrients and factors leading to the promotion of calcium bioavailability to the body. The review hopes to provide further insights into how calcium supplement formulations can be improved to better influence its bioavailability in the human body. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=bioavailability" title="bioavailability">bioavailability</a>, <a href="https://publications.waset.org/abstracts/search?q=environment%20of%20cellular%20and%20hormonal%20interactions" title=" environment of cellular and hormonal interactions"> environment of cellular and hormonal interactions</a>, <a href="https://publications.waset.org/abstracts/search?q=nutritional%20combinations" title=" nutritional combinations"> nutritional combinations</a>, <a href="https://publications.waset.org/abstracts/search?q=synergistic" title=" synergistic"> synergistic</a> </p> <a href="https://publications.waset.org/abstracts/61759/combinatory-nutrition-supplementation-a-case-of-synergy-for-increasing-calcium-bioavailability" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/61759.pdf" target="_blank" class="btn btn-primary btn-sm">PDF</a> <span class="bg-info text-light px-1 py-1 float-right rounded"> Downloads <span class="badge badge-light">409</span> </span> </div> </div> <div class="card paper-listing mb-3 mt-3"> <h5 class="card-header" style="font-size:.9rem"><span class="badge badge-info">6105</span> Preparation of Chromium Nanoparticles on Carbon Substrate from Tannery Waste Solution by Chemical Method Compared to Electrokinetic Process</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Mahmoud%20A.%20Rabah">Mahmoud A. Rabah</a>, <a href="https://publications.waset.org/abstracts/search?q=Said%20El%20Sheikh"> Said El Sheikh</a> </p> <p class="card-text"><strong>Abstract:</strong></p> This work shows the preparation of chromium nanoparticles from tannery waste solution on glassy carbon by chemical method compared to electrokinetic process. The waste solution contains free and soluble fats, calcium, iron, magnesium and high sodium in addition to the chromium ions. Filtration helps removal of insoluble matters. Diethyl ether successfully extracted soluble fats. The method started by removing calcium as insoluble oxalate salts at hot conditions in a faint acidic medium. The filtrate contains iron, magnesium, chromium ions and sodium chloride in excess. Chromium was separated selectively as insoluble hydroxide sol-gel at pH 6.5, filtered and washed with distilled water. Part of the gel reacted with sulfuric acid to produce chromium sulfate solution having 15-25 g/L concentration. Electrokinetic deposition of chromium nanoparticles on a carbon cathode was carried out using platinum anode under different galvanostatic conditions. The chemical method involved impregnating the carbon specimens with chromium hydroxide gel followed by reduction using hydrazine hydrate or by thermal reduction using hydrogen gas at 1250°C. Chromium grain size was characterized by TEM, FT-IR and SEM. Properties of the Cr grains were correlated to the conditions of the preparation process. Electrodeposition was found to control chromium particles to be more identical in size and shape as compared to the chemical method. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=chromium" title="chromium">chromium</a>, <a href="https://publications.waset.org/abstracts/search?q=electrodeposition" title=" electrodeposition"> electrodeposition</a>, <a href="https://publications.waset.org/abstracts/search?q=nanoparticles" title=" nanoparticles"> nanoparticles</a>, <a href="https://publications.waset.org/abstracts/search?q=tannery%20waste%20solution" title=" tannery waste solution"> tannery waste solution</a> </p> <a href="https://publications.waset.org/abstracts/6647/preparation-of-chromium-nanoparticles-on-carbon-substrate-from-tannery-waste-solution-by-chemical-method-compared-to-electrokinetic-process" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/6647.pdf" target="_blank" class="btn btn-primary btn-sm">PDF</a> <span class="bg-info text-light px-1 py-1 float-right rounded"> Downloads <span class="badge badge-light">409</span> </span> </div> </div> <div class="card paper-listing mb-3 mt-3"> <h5 class="card-header" style="font-size:.9rem"><span class="badge badge-info">6104</span> Effect of Lime Stabilization on E. coli Destruction and Heavy Metal Bioavailability in Sewage Sludge for Agricultural Utilization</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=G.%20Petruzzelli">G. Petruzzelli</a>, <a href="https://publications.waset.org/abstracts/search?q=F.%20Pedron"> F. Pedron</a>, <a href="https://publications.waset.org/abstracts/search?q=M.%20Grifoni"> M. Grifoni</a>, <a href="https://publications.waset.org/abstracts/search?q=A.%20Pera"> A. Pera</a>, <a href="https://publications.waset.org/abstracts/search?q=I.%20Rosellini"> I. Rosellini</a>, <a href="https://publications.waset.org/abstracts/search?q=B.%20Pezzarossa"> B. Pezzarossa</a> </p> <p class="card-text"><strong>Abstract:</strong></p> The addition of lime as Ca(OH)2 to sewage sludge to destroy pathogens (Escherichia coli), was evaluated also in relation to heavy metal bioavailability. The obtained results show that the use of calcium hydroxide at the dose of 3% effectively destroyed pathogens ensuring the stability at high pH values over long period and the duration of the sewage sludge stabilization. In general, lime addition decreased the total extractability of heavy metals indicating a reduced bioavailability of these elements. This is particularly important for a safe utilization in agricultural soils to reduce the possible transfer of heavy metals to the food chain. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=biological%20sludge" title="biological sludge">biological sludge</a>, <a href="https://publications.waset.org/abstracts/search?q=Ca%28OH%292" title=" Ca(OH)2"> Ca(OH)2</a>, <a href="https://publications.waset.org/abstracts/search?q=copper" title=" copper"> copper</a>, <a href="https://publications.waset.org/abstracts/search?q=pathogens" title=" pathogens"> pathogens</a>, <a href="https://publications.waset.org/abstracts/search?q=sanitation" title=" sanitation"> sanitation</a>, <a href="https://publications.waset.org/abstracts/search?q=zinc" title=" zinc"> zinc</a> </p> <a href="https://publications.waset.org/abstracts/23135/effect-of-lime-stabilization-on-e-coli-destruction-and-heavy-metal-bioavailability-in-sewage-sludge-for-agricultural-utilization" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/23135.pdf" target="_blank" class="btn btn-primary btn-sm">PDF</a> <span class="bg-info text-light px-1 py-1 float-right rounded"> Downloads <span class="badge badge-light">426</span> </span> </div> </div> <div class="card paper-listing mb-3 mt-3"> <h5 class="card-header" style="font-size:.9rem"><span class="badge badge-info">6103</span> Influence of Variable Calcium Content on Mechanical Properties of Geopolymer Synthesized at Different Temperature and Moisture Conditions</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Suraj%20D.%20Khadka">Suraj D. Khadka</a>, <a href="https://publications.waset.org/abstracts/search?q=Priyantha%20W.%20Jayawickrama"> Priyantha W. Jayawickrama</a> </p> <p class="card-text"><strong>Abstract:</strong></p> In search of a sustainable construction material, geopolymer has been investigated for past decades to evaluate its advantage over conventional products. Synthesis of geopolymer requires a source of aluminosilicate mixed with sodium hydroxide and sodium silicate at different proportions to maintain a Si/Al molar ratio of 1-3 and Na/Al molar ratio of unity. A comprehensive geopolymer study was performed with Metakaolin and Class C Fly ash as primary aluminosilicate sources. Synthesized geopolymer was analyzed for time-dependent viscosity, setting period and strength at varying initial moisture content, curing temperature and humidity. Different concentration of Ca(OH)₂ and CaSO₄.2H₂O were added to vary the amount of calcium contained in synthesized geopolymer. Influence of calcium content in unconfined compressive strength behavior of geopolymer were analyzed. Finally, Scanning Electron Microscopy-Energy Dispersive Spectroscopy (SEM-EDS) was performed to investigate the hardened product. It was observed that fly ash based geopolymer had shortened setting time and faster increase in viscosity as compared to geopolymer synthesized from metakaolin. This was primarily attributed to higher calcium content resulting in formation of calcium silicate hydrates (CSH). SEM-EDS was performed to verify the presence of CSH phases. Spectral analysis of geopolymer prepared by addition of Ca(OH)₂ and CaSO₄.2H₂O indicated higher CSH phases at higher concentration. It was observed that lower concentration of added calcium favored strength gain in geopolymer. However, at higher calcium concentration, decrease in strength was observed. Strength variation was also observed with humidity at initial curing condition. At 100% humidity, geopolymer with added calcium presented higher strength compared to samples cured at ambient humidity condition (40%). Reduction in strength in these samples at lower humidity was primarily attributed to reduction in moisture content in specimen due to the formation of CSH phases and loss of moisture through evaporation. For low calcium content geopolymers, with increase in temperature, gain in strength was observed with maximum strength observed at 200 ˚C. However, samples with higher calcium content demonstrated severe cracking resulting in low strength at elevated temperatures. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=calcium%20silicate%20hydrates" title="calcium silicate hydrates">calcium silicate hydrates</a>, <a href="https://publications.waset.org/abstracts/search?q=geopolymer" title=" geopolymer"> geopolymer</a>, <a href="https://publications.waset.org/abstracts/search?q=humidity" title=" humidity"> humidity</a>, <a href="https://publications.waset.org/abstracts/search?q=Scanning%20Electron%20Microscopy-Energy%20Dispersive%20Spectroscopy" title=" Scanning Electron Microscopy-Energy Dispersive Spectroscopy"> Scanning Electron Microscopy-Energy Dispersive Spectroscopy</a>, <a href="https://publications.waset.org/abstracts/search?q=unconfined%20compressive%20strength" title=" unconfined compressive strength "> unconfined compressive strength </a> </p> <a href="https://publications.waset.org/abstracts/96918/influence-of-variable-calcium-content-on-mechanical-properties-of-geopolymer-synthesized-at-different-temperature-and-moisture-conditions" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/96918.pdf" target="_blank" class="btn btn-primary btn-sm">PDF</a> <span class="bg-info text-light px-1 py-1 float-right rounded"> Downloads <span class="badge badge-light">127</span> </span> </div> </div> <div class="card paper-listing mb-3 mt-3"> <h5 class="card-header" style="font-size:.9rem"><span class="badge badge-info">6102</span> Utilization of Jackfruit Seed Flour (Artocarpus heterophyllus L.) as a Food Additive</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=C.%20S.%20D.%20S.%20Maduwage">C. S. D. S. Maduwage</a>, <a href="https://publications.waset.org/abstracts/search?q=P.%20W.%20Jeewanthi"> P. W. Jeewanthi</a>, <a href="https://publications.waset.org/abstracts/search?q=W.%20A.%20J.%20P.%20Wijesinghe"> W. A. J. P. Wijesinghe</a> </p> <p class="card-text"><strong>Abstract:</strong></p> This study investigated the use of Jackfruit Seed Flour (JSF) as a thickening agent in tomato sauce production. Lye peeled mature jackfruit seeds were used to obtain JSF. Flour was packed in laminated bags and stored for further studies. Three batches of tomato sauce samples were prepared according to the Sri Lankan Standards for tomato sauce by adding JSF, corn flour and without any thickening agent. Samples were stored at room temperature for 8 weeks in glass bottles. The physicochemical properties such as pH, total soluble solids, titratable acidity, and water activity were measured during the storage period. Microbial analysis and sensory evaluation were done to determine the quality of tomato sauce. JSF showed the role of a thickening agent in tomato sauce with lowest serum separation and highest viscosity during the storage period. This study concludes that JSF can be successfully used as a thickening agent in food industry. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=Jackfruit%20seed%20flour" title="Jackfruit seed flour">Jackfruit seed flour</a>, <a href="https://publications.waset.org/abstracts/search?q=food%20additive" title=" food additive"> food additive</a>, <a href="https://publications.waset.org/abstracts/search?q=thickening%20agent" title=" thickening agent"> thickening agent</a>, <a href="https://publications.waset.org/abstracts/search?q=tomato%20sauce" title=" tomato sauce"> tomato sauce</a> </p> <a href="https://publications.waset.org/abstracts/105872/utilization-of-jackfruit-seed-flour-artocarpus-heterophyllus-l-as-a-food-additive" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/105872.pdf" target="_blank" class="btn btn-primary btn-sm">PDF</a> <span class="bg-info text-light px-1 py-1 float-right rounded"> Downloads <span class="badge badge-light">308</span> </span> </div> </div> <div class="card paper-listing mb-3 mt-3"> <h5 class="card-header" style="font-size:.9rem"><span class="badge badge-info">6101</span> Assessment of Menus in a Selected Social Welfare Home with Regard to Nutritional Recommendations</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=E.%20Grochowska-Niedworok">E. Grochowska-Niedworok</a>, <a href="https://publications.waset.org/abstracts/search?q=K.%20Brukalo"> K. Brukalo</a>, <a href="https://publications.waset.org/abstracts/search?q=B.%20Ca%C5%82yniuk"> B. Całyniuk</a>, <a href="https://publications.waset.org/abstracts/search?q=J.%20Piekorz"> J. Piekorz</a>, <a href="https://publications.waset.org/abstracts/search?q=M.%20Kardas"> M. Kardas</a> </p> <p class="card-text"><strong>Abstract:</strong></p> The aim of the study was to assess diets of residents of nursing homes. Provided by social welfare home, 10 day menus were introduced into the computer program Diet 5 and analyzed in respect of protein, fats, carbohydrates, energy, vitamin D and calcium. The resulting mean values of 10-day menus were compared with the existing Nutrition Standards for Polish population. The analysis menus showed that the average amount of energy supplied from food is not sufficient. Carbohydrates in food supply are too high and represent 257% of normal. The average value of fats and proteins supplied with food is adequate 85.2 g/day and 75.2 g/day. The calcium content of the diet is 513.9 mg/day. The amount of vitamin D supplied in the age group 51-65 years is 2.3 µg/day. Dietary errors that have been shown are due to the lack of detailed nutritional guidelines for nursing homes, as well as state-owned care facilities in general. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=assessment%20of%20diet" title="assessment of diet">assessment of diet</a>, <a href="https://publications.waset.org/abstracts/search?q=essential%20nutrients" title=" essential nutrients"> essential nutrients</a>, <a href="https://publications.waset.org/abstracts/search?q=social%20welfare%20home" title=" social welfare home"> social welfare home</a>, <a href="https://publications.waset.org/abstracts/search?q=nutrition" title=" nutrition"> nutrition</a> </p> <a href="https://publications.waset.org/abstracts/91925/assessment-of-menus-in-a-selected-social-welfare-home-with-regard-to-nutritional-recommendations" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/91925.pdf" 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