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pulps</title> <meta name="description" content="Search results for: pulps"> <meta name="keywords" content="pulps"> <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 Excellence" title="Open Science Research Excellence" /> </a> <button class="d-block d-lg-none navbar-toggler ml-auto" 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class="input-group"> <i class="fas fa-search"></i> <input type="text" class="search-query" name="q" placeholder="Author, Title, Abstract, Keywords" value="pulps"> <input type="submit" class="btn_search" value="Search"> </div> </div> </form> </div> </div> <div class="row mt-3"> <div class="col-sm-3"> <div class="card"> <div class="card-body"><strong>Commenced</strong> in January 2007</div> </div> </div> <div class="col-sm-3"> <div class="card"> <div class="card-body"><strong>Frequency:</strong> Monthly</div> </div> </div> <div class="col-sm-3"> <div class="card"> <div class="card-body"><strong>Edition:</strong> International</div> </div> </div> <div class="col-sm-3"> <div class="card"> <div class="card-body"><strong>Paper Count:</strong> 7</div> </div> </div> </div> <h1 class="mt-3 mb-3 text-center" style="font-size:1.6rem;">Search results for: pulps</h1> <div class="card paper-listing mb-3 mt-3"> <h5 class="card-header" style="font-size:.9rem"><span class="badge badge-info">7</span> Effect of Enzymatic Modification on the Crystallinity of Cellulose Pulps</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=J.%20Janicki">J. Janicki</a>, <a href="https://publications.waset.org/abstracts/search?q=M.%20Rom"> M. Rom</a>, <a href="https://publications.waset.org/abstracts/search?q=C.%20Slusarczyk"> C. Slusarczyk</a>, <a href="https://publications.waset.org/abstracts/search?q=J.%20Fabia"> J. Fabia</a>, <a href="https://publications.waset.org/abstracts/search?q=M.%20Siika-aho"> M. Siika-aho</a>, <a href="https://publications.waset.org/abstracts/search?q=K.%20Marjamaa"> K. Marjamaa</a>, <a href="https://publications.waset.org/abstracts/search?q=K.%20Kruus"> K. Kruus</a>, <a href="https://publications.waset.org/abstracts/search?q=K.%20Langfelder"> K. Langfelder</a>, <a href="https://publications.waset.org/abstracts/search?q=C.%20Steel"> C. Steel</a>, <a href="https://publications.waset.org/abstracts/search?q=M.%20Paloheimo"> M. Paloheimo</a>, <a href="https://publications.waset.org/abstracts/search?q=T.%20Puranen"> T. Puranen</a>, <a href="https://publications.waset.org/abstracts/search?q=S.%20M%C3%A4kinen"> S. Mäkinen</a>, <a href="https://publications.waset.org/abstracts/search?q=D.%20Wawro"> D. Wawro</a> </p> <p class="card-text"><strong>Abstract:</strong></p> The cellulose is one of the most abundant polymers in the world, however, its application in the high-end value products such as films or fibres, it triggered by the cellulose properties. The noticeable presence of hydrogen bonding reflected with partially crystalline structure makes the cellulose insoluble in common solvents and not meltable. The existing technologies, such as viscose process, suffer from environmental and economical problems, because of the risk of harmful chemicals liberation during the spinning process. The enzymatic modification of cellulose with endoglucanase makes it directly alkali soluble in NaOH solution, giving the opportunities for film and fibers formation. As the effect of enzymatic treatment, there are observed changes in crystalline structure and accompanying changes of the affinity of cellulose to water, demonstrated by water retention value. The objective of the project ELMO - Novel carbohydrate modifying enzymes for fibre modification is is to develop new enzyme products for modification of dissolving grade pulps. The aim is to increase the reactivity of dissolving grade pulps and remove residual hemicellulose. The scientific aim of this paper is to present the effect of enzymatic treatment on the crystallinity and affinity to water of cellulose pulps modified with enzymes. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=cellulose" title="cellulose">cellulose</a>, <a href="https://publications.waset.org/abstracts/search?q=crystallinity" title=" crystallinity"> crystallinity</a>, <a href="https://publications.waset.org/abstracts/search?q=WAXS" title=" WAXS"> WAXS</a>, <a href="https://publications.waset.org/abstracts/search?q=enzyme" title=" enzyme"> enzyme</a> </p> <a href="https://publications.waset.org/abstracts/55599/effect-of-enzymatic-modification-on-the-crystallinity-of-cellulose-pulps" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/55599.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">236</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">6</span> Compositional and Morphological Characteristics of Three Common Dates (Phoenix dactylifera L.) Grown in Algeria</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=H.%20Amellal">H. Amellal</a>, <a href="https://publications.waset.org/abstracts/search?q=Y.%20Noui"> Y. Noui</a>, <a href="https://publications.waset.org/abstracts/search?q=A.%20Djouab"> A. Djouab</a>, <a href="https://publications.waset.org/abstracts/search?q=S.%20Benamara"> S. Benamara</a> </p> <p class="card-text"><strong>Abstract:</strong></p> Mech-Degla, Degla-Beida, and Frezza are the date (Phoenix dactylifera L.) common varieties with a more or less good availability and feeble trade value. Some morphologic and physicochemical factors were determined. Results show that the whole date weight is significantly different (P= 95%) concerning Mech-Degla and Degla-Beida which are more commercialised than Frezza whereas the pulp/kernel ratio for this last is highest (above 7) since it represents almost the double of that found for the two other varieties. The water content for all fruits is below 15g/100g (wet basis) what confers a dried consistence for common date. Some other morphologic and chemical proprieties of the whole pulps and their two constitutive parts (brown or pigmented and white) are also investigated. The predominance of phenolics in Mech-Degla (4.01g/100g, w.b) and Frezza (4.96 g/100g, w.b) pulps brown part is the main result revealed in this study. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=common%20dates" title="common dates">common dates</a>, <a href="https://publications.waset.org/abstracts/search?q=phenolics" title=" phenolics"> phenolics</a>, <a href="https://publications.waset.org/abstracts/search?q=sugars" title=" sugars"> sugars</a>, <a href="https://publications.waset.org/abstracts/search?q=tissues" title=" tissues"> tissues</a> </p> <a href="https://publications.waset.org/abstracts/16455/compositional-and-morphological-characteristics-of-three-common-dates-phoenix-dactylifera-l-grown-in-algeria" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/16455.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">413</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">5</span> Howard Mold Count of Tomato Pulp Commercialized in the State of São Paulo, Brazil</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=M.%20B.%20Atui">M. B. Atui</a>, <a href="https://publications.waset.org/abstracts/search?q=A.%20M.%20Silva"> A. M. Silva</a>, <a href="https://publications.waset.org/abstracts/search?q=M.%20A.%20M.%20Marciano"> M. A. M. Marciano</a>, <a href="https://publications.waset.org/abstracts/search?q=M.%20I.%20Fioravanti"> M. I. Fioravanti</a>, <a href="https://publications.waset.org/abstracts/search?q=V.%20A.%20Franco"> V. A. Franco</a>, <a href="https://publications.waset.org/abstracts/search?q=L.%20B.%20Chasin"> L. B. Chasin</a>, <a href="https://publications.waset.org/abstracts/search?q=A.%20R.%20Ferreira"> A. R. Ferreira</a>, <a href="https://publications.waset.org/abstracts/search?q=M.%20D.%20Nogueira"> M. D. Nogueira </a> </p> <p class="card-text"><strong>Abstract:</strong></p> Fungi attack large amount of fruits and those who have suffered an injury on the surface are more susceptible to the growth, as they have pectinolytic enzymes that destroy the edible portion forming an amorphous and soft dough. The spores can reach the plant by the wind, rain and insects and fruit may have on its surface, besides the contaminants from the fruit trees, land and water, forming a flora composed mainly of yeasts and molds. Other contamination can occur for the equipment used to harvest, for the use of boxes and contaminated water to the fruit washing, for storage in dirty places. The hyphae in tomato products indicate the use of raw materials contaminated or unsuitable hygiene conditions during processing. Although fungi are inactivated in heat processing step, its hyphae remain in the final product and search for detection and quantification is an indicator of the quality of raw material. Howard Method count of fungi mycelia in industrialized pulps evaluates the amount of decayed fruits existing in raw material. The Brazilian legislation governing processed and packaged products set the limit of 40% of positive fields in tomato pulps. The aim of this study was to evaluate the quality of the tomato pulp sold in greater São Paulo, through a monitoring during the four seasons of the year. All over 2010, 110 samples have been examined; 21 were taking in spring, 31 in summer, 31 in fall and 27 in winter, all from different lots and trademarks. Samples have been picked up in several stores located in the city of São Paulo. Howard method was used, recommended by the AOAC, 19th ed, 2011 16:19:02 technique - method 965.41. Hundred percent of the samples contained fungi mycelia. The count average of fungi mycelia per season was 23%, 28%, 8,2% and 9,9% in spring, summer, fall and winter, respectively. Regarding the spring samples of the 21 samples analyzed, 14.3% were off-limits proposed by the legislation. As for the samples of the fall and winter, all were in accordance with the legislation and the average of mycelial filament count has not exceeded 20%, which can be explained by the low temperatures during this time of the year. The acquired samples in the summer and spring showed high percentage of fungal mycelium in the final product, related to the high temperatures in these seasons. Considering that the limit of 40% of positive fields is accepted for the Brazilian Legislation (RDC nº 14/2014), 3 spring samples (14%) and 6 summer samples (19%) will be over this limit and subject to law penalties. According to gathered data, 82% of manufacturers of this product manage to keep acceptable levels of fungi mycelia in their product. In conclusion, only 9.2% samples were for the limits established by Resolution RDC. 14/2014, showing that the limit of 40% is feasible and can be used by these segment industries. The result of the filament count mycelial by Howard method is an important tool in the microscopic analysis since it measures the quality of raw material used in the production of tomato products. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=fungi" title="fungi">fungi</a>, <a href="https://publications.waset.org/abstracts/search?q=howard" title=" howard"> howard</a>, <a href="https://publications.waset.org/abstracts/search?q=method" title=" method"> method</a>, <a href="https://publications.waset.org/abstracts/search?q=tomato" title=" tomato"> tomato</a>, <a href="https://publications.waset.org/abstracts/search?q=pulps" title=" pulps"> pulps</a> </p> <a href="https://publications.waset.org/abstracts/39513/howard-mold-count-of-tomato-pulp-commercialized-in-the-state-of-sao-paulo-brazil" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/39513.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">374</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">4</span> Acerola and Orange By-Products as Sources of Bioactive Compounds for Probiotic Fermented Milks</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Tatyane%20Lopes%20de%20Freitas">Tatyane Lopes de Freitas</a>, <a href="https://publications.waset.org/abstracts/search?q=Antonio%20Diogo%20S.%20Vieira"> Antonio Diogo S. Vieira</a>, <a href="https://publications.waset.org/abstracts/search?q=Susana%20Marta%20Isay%20Saad"> Susana Marta Isay Saad</a>, <a href="https://publications.waset.org/abstracts/search?q=Maria%20Ines%20Genovese"> Maria Ines Genovese</a> </p> <p class="card-text"><strong>Abstract:</strong></p> The fruit processing industries generate a large volume of residues to produce juices, pulps, and jams. These residues, or by-products, consisting of peels, seeds, and pulps, are routinely discarded. Fruits are rich in bioactive compounds, including polyphenols, which have positive effects on health. Dry residues from two fruits, acerola (M. emarginata D. C.) and orange (C. sinensis), were characterized in relation to contents of ascorbic acid, minerals, total dietary fibers, moisture, ash, lipids, proteins, and carbohydrates, and also high performance liquid chromatographic profile of flavonoids, total polyphenols and proanthocyanidins contents, and antioxidant capacity by three different methods (Ferric reducing antioxidant power assay-FRAP, Oxygen Radical Absorbance Capacity-ORAC, 1,1-diphenyl-2-picrylhydrazil (DPPH) radical scavenging activity). Acerola by-products presented the highest acid ascorbic content (605 mg/100 g), and better antioxidant capacity than orange by-products. The dry residues from acerola demonstrated high contents of proanthocyanidins (617 µg CE/g) and total polyphenols (2525 mg gallic acid equivalents - GAE/100 g). Both presented high total dietary fiber (above 60%) and protein contents (acerola: 10.4%; orange: 9.9%), and reduced fat content (acerola: 1.6%; orange: 2.6%). Both residues showed high levels of potassium, calcium, and magnesium, and were considered sources of these minerals. With acerola by-product, four formulations of probiotics fermented milks were produced: F0 (without the addition of acerola residue (AR)), F2 (2% AR), F5 (5% AR) and F10 (10% AR). The physicochemical characteristics of the fermented milks throughout of storage were investigated, as well as the impact of in vitro simulated gastrointestinal conditions on flavonoids and probiotics. The microorganisms analyzed maintained their populations around 8 log CFU/g during storage. After the gastric phase of the simulated digestion, the populations decreased, and after the enteric phase, no colonies were detected. On the other hand, the flavonoids increased after the gastric phase, maintaining or suffering small decrease after enteric phase. Acerola by-products powder is a valuable ingredient to be used in functional foods because is rich in vitamin C, fibers and flavonoids. These flavonoids appear to be highly resistant to the acids and salts of digestion. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=acerola" title="acerola">acerola</a>, <a href="https://publications.waset.org/abstracts/search?q=orange" title=" orange"> orange</a>, <a href="https://publications.waset.org/abstracts/search?q=by-products" title=" by-products"> by-products</a>, <a href="https://publications.waset.org/abstracts/search?q=fermented%20milk" title=" fermented milk"> fermented milk</a> </p> <a href="https://publications.waset.org/abstracts/96099/acerola-and-orange-by-products-as-sources-of-bioactive-compounds-for-probiotic-fermented-milks" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/96099.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">132</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">3</span> Borassus aethiopum Mart Mature Fruits Macro-Composition, Drying Temperature Effect on Its Pulp Protein, Fat, Sugars, Metabolizable Energy, and Fatty Acids Profile</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Tagouelbe%20Tiho">Tagouelbe Tiho</a>, <a href="https://publications.waset.org/abstracts/search?q=Amissa%20Augustin%20Adima"> Amissa Augustin Adima</a>, <a href="https://publications.waset.org/abstracts/search?q=Yao%20Casimir%20Brou"> Yao Casimir Brou</a>, <a href="https://publications.waset.org/abstracts/search?q=Nabayo%20Traore"> Nabayo Traore</a>, <a href="https://publications.waset.org/abstracts/search?q=Gouha%20Firmin%20Kouassi"> Gouha Firmin Kouassi</a>, <a href="https://publications.waset.org/abstracts/search?q=Thierry%20Roland%20Kouame"> Thierry Roland Kouame</a>, <a href="https://publications.waset.org/abstracts/search?q=Maryline%20Kouba"> Maryline Kouba</a> </p> <p class="card-text"><strong>Abstract:</strong></p> The work aimed to study Borassus aethiopum Mart (B.a) dried pulp nutritional value for its incorporation in human and poultry diets. Firstly, the mature fruit macro-composition was assessed. Secondly, the pulp was dried at 40, 50, 60, 70, and 80ᵒC. Thereafter, the analysis was performed for fat, protein, total sugars, Ca, P, Mg, and fatty acid profile monitoring. As a result, the fruits weighed 1,591.35, delivered 516.73, and 677.82 grams of pulp and seeds, respectively. Mainly, increasing heat adversely affected the outputs. Consequently, the fat results were 14.12, 12.97, 8.93, 8.89ᶜ, and 5.56%; protein contents were 11.64, 10.15, 8.97, 8.84, and 8.42%; total sugar deliveries were 6.28, 6.05, 5.26, 5.02, and 4.76% (P < 0.01). Thereafter, the metabolizable energies were 3,785.22; 3,834.28; 3,616.62; 3,667.03; and 3,608.33 kcal/kg (DM). Additionally, Calcium (Ca) contents were 0.51, 0.55, 0.69, 0.77, and 0.81%, while phosphorus (P) mean was 0.17%, and the differences were not significant (P < 0.01). So, the Ca/P ratios were 2.79, 3.04, 4.10, 4.71, and 4.95. Finally, fatty acids (FA) assessments revealed 22.33 saturated (SFA), 77.67 unsaturated (UFA), within which 67.59% were monounsaturated (MUFA). Interestingly, the rising heat depressed n-6/n-3 ratios that were 1.1, 1.1, 0.45 and 0.38, respectively at 40, 50, 70 and 80ᵒC. In short, drying did not only enhance the product shelf life but it also improved the nutritional value. Thus, B.a mature fruit pulps dried at 70ᵒC are good functional foods, with more than 66% MUFA, and energy source for human and poultry nutrition. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=Borassus%20aethiopum%20Mart" title="Borassus aethiopum Mart">Borassus aethiopum Mart</a>, <a href="https://publications.waset.org/abstracts/search?q=fatty%20acids" title=" fatty acids"> fatty acids</a>, <a href="https://publications.waset.org/abstracts/search?q=metabolizable%20energy" title=" metabolizable energy"> metabolizable energy</a>, <a href="https://publications.waset.org/abstracts/search?q=minerals" title=" minerals"> minerals</a>, <a href="https://publications.waset.org/abstracts/search?q=protein" title=" protein"> protein</a> </p> <a href="https://publications.waset.org/abstracts/91972/borassus-aethiopum-mart-mature-fruits-macro-composition-drying-temperature-effect-on-its-pulp-protein-fat-sugars-metabolizable-energy-and-fatty-acids-profile" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/91972.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">171</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">2</span> Environmentally Friendly KOH and NH4OH-KOH Pulping of Rice Straw</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Omid%20Ghaffarzadeh%20Mollabashi">Omid Ghaffarzadeh Mollabashi</a>, <a href="https://publications.waset.org/abstracts/search?q=Sara%20Khorshidi"> Sara Khorshidi</a>, <a href="https://publications.waset.org/abstracts/search?q=Hossein%20Kermanian%20Seyed"> Hossein Kermanian Seyed</a>, <a href="https://publications.waset.org/abstracts/search?q=Majid%20Zabihzadeh"> Majid Zabihzadeh</a> </p> <p class="card-text"><strong>Abstract:</strong></p> The main problem that hinders the intensive use of non-wood raw materials in papermaking industry is the environmental pollution caused by black liquor. As a matter of fact, black liquor of nonwood pulping is discharged to the environment due to the lack of recovery. Traditionally, NaOH pulping produces Na-based black liquor that may increase soil erosion and reduce soil permeability. With substitution of KOH/NH4OH with NaOH as the cooking liquor, K and N can act as a soil fertilizer while offering an environmentally acceptable disposal alternative. For this purpose, rice straw samples were pulped under the following conditions; Constant factors were: straw weight: 100 gram (based on oven dry), liquor to straw ratio 7:1 and maximum temperature, 170 and 180 ºC. Variable factors for KOH cooks were: KOH dosage of 14, 17 and %20 on oven dry of straw and times at maximum temperature of 60 and 90 minutes. For KOH-NH4OH cooks, KOH dosage of 5 and %10 and NH4OH dosage of 25 and %35, both based as oven dry of straw were applied. Besides, time at maximum temperature was 90 minutes. Yield ranges of KOH and KOH-NH4OH pulp samples were obtained from 37.28 to 48.62 and 45.63 to 48.08 percent, respectively. In addition, Kappa number ranged from 21.91 to 29.85 and 55.15 to 56.25, respectively. In comparison with soda, soda-AQ, cold soda, kraft, EDA (dissolving), De-Ethylene Glycol (dissolving), burst and tensile index for KOH pulp was more in similar cooking condition. With an exception of soda pulps, tear index of the mentioned pulp is more than all compared treatments. Therefore, it can be resulted that KOH pulping method is an appropriate choice for making paper of the rice straw. Also, compared to KOH-NH4OH, KOH pulping method is more appropriate choice because of better pulping results. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=environmentally%20friendly%20process" title="environmentally friendly process">environmentally friendly process</a>, <a href="https://publications.waset.org/abstracts/search?q=rice%20straw" title=" rice straw"> rice straw</a>, <a href="https://publications.waset.org/abstracts/search?q=NH4OH-KOH%20pulping" title=" NH4OH-KOH pulping"> NH4OH-KOH pulping</a>, <a href="https://publications.waset.org/abstracts/search?q=pulp%20properties" title=" pulp properties"> pulp properties</a> </p> <a href="https://publications.waset.org/abstracts/54856/environmentally-friendly-koh-and-nh4oh-koh-pulping-of-rice-straw" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/54856.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">270</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">1</span> Survey for Mango Seed Weevils and Pulp Weevil Sternochetus Species (Coleoptera:Curculionidae) on Mango, Mangifera indica in Shan State-South, Myanmar </h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Khin%20Nyunt%20Yee">Khin Nyunt Yee</a>, <a href="https://publications.waset.org/abstracts/search?q=Mu%20Mu%20Thein"> Mu Mu Thein </a> </p> <p class="card-text"><strong>Abstract:</strong></p> Detection survey of mango seed and Pulp weevils was undertaken at major mango production areas, Yat Sauk, Taunggyi, Nyaung Shwe and Hopong Townships, in Shan State (South) of Myanmar on two mango cultivars of Sein Ta Lone and Yinkwe from May to August 2016 to coincide with fruiting season to conduct a survey of mango seed and pulp weevils population. The total numbers of 6300 fruits of both mango cultivars were sampled. Among them, 2900 fruits from 5674 fruit bearing plants were collected for Sein Ta Lone cultivar of five well managed, one unmanaged orchards and Urban in Yatsauk Twonship, 400 fruits from only one well managed orchard in Taunggyi Township, 400 fruits from two managed orchards in Nyaung Shwe Township and 400 fruits from one managed orchard in Hopong Township from May to June. 2200 fruits were collected from 4043 fruit bearing plants for Yinkwe Cultivar of four well managed orchards, one unmanaged orchards and one wild tree only in Yat Sauk Township from July to August, 2016. Fruit sample size was 200 fruits /orchard, / wild or /volunteer trees as minimum number. The pulps of all randomly sampling fruits were longitudinal cut open into three slices on each side of fruit and seed were cut longitudinally to inspect the presence of mango weevils. The collected weevils were identified up to species level at Plant Quarantine Laboratory, Plant Protection Division, Department of Agriculture, Ministry of Agriculture, Livestock and Irrigation, Yangon, Myanmar. Mango Pulp and Seed weevils were found on Sein Ta Lone Mango Cultivar in three out of four surveyed Townships except Hopong with the level of infestation ranged from 0.0% to 3.5% of fruits per Township with 0.0% to 39.0% of fruits per orchard. The highest infestation rate per township was 3.5% of fruits (n=400 fruits) in Nyaung Shwe, then, at Yat Suak, the rate was 2.47% (n=2900 fruits). A well-managed orchard at Taung Gyi had 0.75% (n=400 fruits) whereas Hopong was free 0.0% (n=400). The weevils were also recorded on Yinkwe Mango Cultivar in Yatsauk Township where the infestation level was 12.63% of fruits (n=2200) with 0.0% to 67.0% of fruits per orchard. This high level of infestation was obtained by including an absolutely non Integrated Pest Management (non IPM) orchards in both survey with the infestation rates 63.0% of fruits (n=200) and 67.0% of fruits (n=200) respectively on Yinkwe cultivar. Two different species; mango pulp weevil, Sternochetus frigitus, and mango seed weevil Sternochetus olivieri (Faust) of family Curculionidae under the order Coleoptera were recorded. Sternochetus mangiferae was not found during these surveys. Three different developmental stages of mango seed and pulp weevils: larva, pupa and adult were first detected since the first survey in 3rd week of May and mostly were recorded as adult stages in the following surveys in June, July and August The number of Mango pulp weevil was statistically higher than that of mango seed weevils at P < 0.001%. More precise surveys should be carried out national wide to detect the mango weevils. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=mango%20pulp%20weevil" title="mango pulp weevil">mango pulp weevil</a>, <a href="https://publications.waset.org/abstracts/search?q=Sternochetus%20frigitus" title=" Sternochetus frigitus"> Sternochetus frigitus</a>, <a href="https://publications.waset.org/abstracts/search?q=mango%20seed%20weevil%20Sternochetus%20olivieri" title=" mango seed weevil Sternochetus olivieri"> mango seed weevil Sternochetus olivieri</a>, <a href="https://publications.waset.org/abstracts/search?q=faust" title=" faust"> faust</a>, <a href="https://publications.waset.org/abstracts/search?q=Sternochetus%20mangiferae" title=" Sternochetus mangiferae"> Sternochetus mangiferae</a>, <a href="https://publications.waset.org/abstracts/search?q=fabricius" title=" fabricius"> fabricius</a>, <a href="https://publications.waset.org/abstracts/search?q=Sein%20Ta%20Lone" title=" Sein Ta Lone"> Sein Ta Lone</a>, <a href="https://publications.waset.org/abstracts/search?q=Yinkwe%20mango%20cultivars" title=" Yinkwe mango cultivars"> Yinkwe mango cultivars</a>, <a href="https://publications.waset.org/abstracts/search?q=Shan%20State%20%28South%29%20Myanmar" title=" Shan State (South) Myanmar"> Shan State (South) Myanmar</a> </p> <a href="https://publications.waset.org/abstracts/65063/survey-for-mango-seed-weevils-and-pulp-weevil-sternochetus-species-coleopteracurculionidae-on-mango-mangifera-indica-in-shan-state-south-myanmar" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/65063.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">307</span> </span> </div> </div> </div> </main> <footer> <div id="infolinks" class="pt-3 pb-2"> 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