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fructooligosaccharides</title> <meta name="description" content="Search results for: fructooligosaccharides"> <meta name="keywords" content="fructooligosaccharides"> <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 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action="https://publications.waset.org/abstracts/search"> <div id="custom-search-input"> <div class="input-group"> <i class="fas fa-search"></i> <input type="text" class="search-query" name="q" placeholder="Author, Title, Abstract, Keywords" value="fructooligosaccharides"> <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> 6</div> </div> </div> </div> <h1 class="mt-3 mb-3 text-center" style="font-size:1.6rem;">Search results for: fructooligosaccharides</h1> <div class="card paper-listing mb-3 mt-3"> <h5 class="card-header" style="font-size:.9rem"><span class="badge badge-info">6</span> Fructooligosaccharide Prebiotics: Optimization of Different Cultivation Parameters on Their Microbial Production</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Elsayed%20Ahmed%20Elsayed">Elsayed Ahmed Elsayed</a>, <a href="https://publications.waset.org/abstracts/search?q=Azza%20Noor%20El-Deen"> Azza Noor El-Deen</a>, <a href="https://publications.waset.org/abstracts/search?q=Mohamed%20A.%20Farid"> Mohamed A. Farid</a>, <a href="https://publications.waset.org/abstracts/search?q=Mohamed%20A.%20Wadaan"> Mohamed A. Wadaan</a> </p> <p class="card-text"><strong>Abstract:</strong></p> Recently, a great attention has been paid to the use of dietary carbohydrates as prebiotic functional foods. Among the new commercially available products, fructooligosaccharides (FOS), which are microbial produced from sucrose, have attracted special interest due to their valuable properties and, thus, have a great economic potential for the sugar industrial branch. They are non-cariogenic sweeteners of low caloric value, as they are not hydrolyzed by the gastro-intestinal enzymes, promoting selectively the growth of the bifidobacteria in the colon, helping to eliminate the harmful microbial species to human and animal health and preventing colon cancer. FOS has been also found to reduce cholesterol, phospholipids and triglyceride levels in blood. FOS has been mainly produced by microbial fructosyltransferase (FTase) enzymes. The present work outlines bioprocess optimization for different cultivation parameters affecting the production of FTase by Penicillium aurantiogriseum AUMC 5605. The optimization involves both traditional as well as fractional factorial design approaches. Additionally, the production process will be compared under batch and fed-batch conditions. Finally, the optimized process conditions will be applied to 5-L stirred tank bioreactor cultivations. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=prebiotics" title="prebiotics">prebiotics</a>, <a href="https://publications.waset.org/abstracts/search?q=fructooligosaccharides" title=" fructooligosaccharides"> fructooligosaccharides</a>, <a href="https://publications.waset.org/abstracts/search?q=optimization" title=" optimization"> optimization</a>, <a href="https://publications.waset.org/abstracts/search?q=cultivation" title=" cultivation"> cultivation</a> </p> <a href="https://publications.waset.org/abstracts/3181/fructooligosaccharide-prebiotics-optimization-of-different-cultivation-parameters-on-their-microbial-production" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/3181.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">387</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> The Safety of Microbiologically Prepared Fructooligosaccharide on White Albino Rats</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Olayinka%20Risiquat%20Raimi">Olayinka Risiquat Raimi</a> </p> <p class="card-text"><strong>Abstract:</strong></p> FOS was produced from FTase of Aspergillus niger. HPLC analysis showed 32.24%. Consisting of 28.57% ketose and 4.67% nystose. Effects of FOS were studied on 12 weeks old albino rats. All animals survived until scheduled euthanasia. A low incidence of clinical sign and no toxicological effect were observed. Male rats fed with 2500mg/kg fructooligosaccharides had the highest weight. Male and female rat showed a significant increase in weight from first week to the fifth week. All haematological parameters examined were normal in male and female rats. Mean haematological and haemoglobin values for 2500mg/kg bw FOS fed male rats were the highest. Clinical chemistry test, glucose, albumin, and cholesterol were within normal laboratory values for a rat. The mean glucose value was lower for FOS fed male and female rats compared to those fed with honey and 60% sucrose. Gross necropsy observation showed no remarkable internal gross abnormalities for any of the animals. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=fructooligosaccharide" title="fructooligosaccharide">fructooligosaccharide</a>, <a href="https://publications.waset.org/abstracts/search?q=white%20albino%20rat" title=" white albino rat"> white albino rat</a>, <a href="https://publications.waset.org/abstracts/search?q=haematology%20values" title=" haematology values"> haematology values</a>, <a href="https://publications.waset.org/abstracts/search?q=clinical%20chemistry%20values" title=" clinical chemistry values"> clinical chemistry values</a> </p> <a href="https://publications.waset.org/abstracts/2062/the-safety-of-microbiologically-prepared-fructooligosaccharide-on-white-albino-rats" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/2062.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">396</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> Selective Immobilization of Fructosyltransferase onto Glutaraldehyde Modified Support and Its Application in the Production of Fructo-Oligosaccharides</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Milica%20B.%20Veljkovi%C4%87">Milica B. Veljković</a>, <a href="https://publications.waset.org/abstracts/search?q=Milica%20B.%20Simovi%C4%87"> Milica B. Simović</a>, <a href="https://publications.waset.org/abstracts/search?q=Marija%20M.%20%C4%86orovi%C4%87"> Marija M. Ćorović</a>, <a href="https://publications.waset.org/abstracts/search?q=Ana%20D.%20Milivojevi%C4%87"> Ana D. Milivojević</a>, <a href="https://publications.waset.org/abstracts/search?q=Anja%20I.%20Petrov"> Anja I. Petrov</a>, <a href="https://publications.waset.org/abstracts/search?q=Katarina%20M.%20Banjanac"> Katarina M. Banjanac</a>, <a href="https://publications.waset.org/abstracts/search?q=Dejan%20I.%20Bezbradica"> Dejan I. Bezbradica</a> </p> <p class="card-text"><strong>Abstract:</strong></p> In recent decades, the scientific community has recognized the growing importance of prebiotics, and therefore, numerous studies are focused on their economic production due to their low presence in natural resources. It has been confirmed that prebiotics is a source of energy for probiotics in the gastrointestinal tract (GIT) and enable their proliferation, consequently leading to the normal functioning of the intestinal microbiota. Also, products of their fermentation are short-chain fatty acids (SCFA), which play a key role in maintaining and improving the health not only of the GIT but also of the whole organism. Among several confirmed prebiotics, fructooligosaccharides (FOS) are considered interesting candidates for use in a wide range of products in the food industry. They are characterized as low-calorie and non-cariogenic substances that represent an adequate sugar substitute and can be considered suitable for use in products intended for diabetics. The subject of this research will be the production of FOS by transforming sucrose using a fructosyltransferase (FTase) present in commercial preparation Pectinex® Ultra SP-L, with special emphasis on the development of adequate FTase immobilization method that would enable selective isolation of the enzyme responsible for the synthesis of FOS from the complex enzymatic mixture. This would lead to considerable enzyme purification and allow its direct incorporation into different sucrose-based products without the fear that the action of the other hydrolytic enzymes may adversely affect the products' functional characteristics. Accordingly, the possibility of selective immobilization of the enzyme using support with primary amino groups, Purolite® A109, which was previously activated and modified using glutaraldehyde (GA), was investigated. In the initial phase of the research, the effects of individual immobilization parameters such as pH, enzyme concentration, and immobilization time were investigated to optimize the process using support chemically activated with 15% and 0.5% GA to form dimers and monomers, respectively. It was determined that highly active immobilized preparations (371.8 IU/g of support - dimer and 213.8 IU/g of support – monomer) were achieved under acidic conditions (pH 4) provided that an enzyme concentration was 50 mg/g of support after 7 h and 3 h, respectively. Bearing in mind the obtained results of the expressed activity, it is noticeable that the formation of dimers showed higher reactivity compared to the form of monomers. Also, in the case of support modification using 15% GA, the value of the ratio of FTase and pectinase (as dominant enzyme mixture component) activity immobilization yields was 16.45, indicating the high feasibility of selective immobilization of FTase on modified polystyrene resin. After obtaining immobilized preparations of satisfactory features, they were tested in a reaction of FOS synthesis under determined optimal conditions. The maximum FOS yields of approximately 50% of total carbohydrates in the reaction mixture were recorded after 21 h. Finally, it can be concluded that the examined immobilization method yielded highly active, stable and, more importantly, refined enzyme preparation that can be further utilized on a larger scale for the development of continual processes for FOS synthesis, as well as for modification of different sucrose-based mediums. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=chemical%20modification" title="chemical modification">chemical modification</a>, <a href="https://publications.waset.org/abstracts/search?q=fructooligosaccharides" title=" fructooligosaccharides"> fructooligosaccharides</a>, <a href="https://publications.waset.org/abstracts/search?q=glutaraldehyde" title=" glutaraldehyde"> glutaraldehyde</a>, <a href="https://publications.waset.org/abstracts/search?q=immobilization%20of%20fructosyltransferase" title=" immobilization of fructosyltransferase"> immobilization of fructosyltransferase</a> </p> <a href="https://publications.waset.org/abstracts/145471/selective-immobilization-of-fructosyltransferase-onto-glutaraldehyde-modified-support-and-its-application-in-the-production-of-fructo-oligosaccharides" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/145471.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">186</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> Culturable Microbial Diversity of Agave Artisanal Fermentations from Central Mexico</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Thal%C3%ADa%20Moreno-Garc%C3%ADa%20Malo">Thalía Moreno-García Malo</a>, <a href="https://publications.waset.org/abstracts/search?q=Santiago%20Torres-R%C3%ADos"> Santiago Torres-Ríos</a>, <a href="https://publications.waset.org/abstracts/search?q=Mar%C3%ADa%20G.%20Gonz%C3%A1lez-Cruz"> María G. González-Cruz</a>, <a href="https://publications.waset.org/abstracts/search?q=Mar%C3%ADa%20M.%20Hern%C3%A1ndez-Arroyo"> María M. Hernández-Arroyo</a>, <a href="https://publications.waset.org/abstracts/search?q=Sergio%20R.%20Trejo-Estrada"> Sergio R. Trejo-Estrada</a> </p> <p class="card-text"><strong>Abstract:</strong></p> Agave atrovirens is the main source of agave sap, the raw material for the production of pulque, an artisanal fermented beverage, traditional since prehispanic times in the highlands of central Mexico. Agave sap is rich in glucose, sucrose and fructooligosaccharides, and strongly differs from agave syrup from A. tequilana, which is mostly a high molecular weight fructan. Agave sap is converted into pulque by a highly diverse microbial community which includes bacteria, yeast and even filamentous fungi. The bacterial diversity has been recently studied. But the composition of consortia derived from directed enrichments differs sharply from the whole fermentative consortium. Using classical microbiology methods, and selective liquid and solid media formulations, either bacterial or fungal consortia were developed and analyzed. Bacterial consortia able to catabolize specific prebiotic saccharides were selected and preserved for future developments. Different media formulations, selective for bacterial genera such as Bifidobacterium, Lactobacillus, Pediococcus, Lactococcus and Enterococcus were also used. For yeast, specific media, osmotic pressure and unique carbon sources were used as selective agents. Results show that most groups are represented in the enrichment cultures; although very few are recoverable from the whole consortium in artisanal pulque. Diversity and abundance vary among consortia. Potential bacterial probiotics obtained from agave sap and agave juices show tolerance to hydrochloric acid, as well as strong antimicrobial activity. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=Agave" title="Agave">Agave</a>, <a href="https://publications.waset.org/abstracts/search?q=pulque" title=" pulque"> pulque</a>, <a href="https://publications.waset.org/abstracts/search?q=microbial%20consortia" title=" microbial consortia"> microbial consortia</a>, <a href="https://publications.waset.org/abstracts/search?q=prebiotic%20activity" title=" prebiotic activity"> prebiotic activity</a> </p> <a href="https://publications.waset.org/abstracts/17953/culturable-microbial-diversity-of-agave-artisanal-fermentations-from-central-mexico" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/17953.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">397</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> In vitro Evaluation of Prebiotic Potential of Wheat Germ</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=L%C3%ADgia%20Pimentel">Lígia Pimentel</a>, <a href="https://publications.waset.org/abstracts/search?q=Miguel%20Pereira"> Miguel Pereira</a>, <a href="https://publications.waset.org/abstracts/search?q=Manuela%20Pintado"> Manuela Pintado</a> </p> <p class="card-text"><strong>Abstract:</strong></p> Wheat germ is a by-product of wheat flour refining. Despite this by-product being a source of proteins, lipids, fibres and complex carbohydrates, and consequently a valuable ingredient to be used in Food Industry, only few applications have been studied. The main goal of this study was to assess the potential prebiotic effect of natural wheat germ. The prebiotic potential was evaluated by in vitro assays with individual microbial strains (Lactobacillus paracasei L26 and Lactobacillus casei L431). A simulated model of the gastrointestinal digestion was also used including the conditions present in the mouth (artificial saliva), oesophagus–stomach (artificial gastric juice), duodenum (artificial intestinal juice) and ileum. The effect of natural wheat germ and wheat germ after digestion on the growth of lactic acid bacteria was studied by growing those microorganisms in de Man, Rogosa and Sharpe (MRS) broth (with 2% wheat germ and 1% wheat germ after digestion) and incubating at 37 ºC for 48 h with stirring. A negative control consisting of MRS broth without glucose was used and the substrate was also compared to a commercial prebiotic fructooligosaccharides (FOS). Samples were taken at 0, 3, 6, 9, 12, 24 and 48 h for bacterial cell counts (CFU/mL) and pH measurement. Results obtained showed that wheat germ has a stimulatory effect on the bacteria tested, presenting similar (or even higher) results to FOS, when comparing to the culture medium without glucose. This was demonstrated by the viable cell counts and also by the decrease on the medium pH. Both L. paracasei L26 and L. casei L431 could use these compounds as a substitute for glucose with an enhancement of growth. In conclusion, we have shown that wheat germ stimulate the growth of probiotic lactic acid bacteria. In order to understand if the composition of gut bacteria is altered and if wheat germ could be used as potential prebiotic, further studies including faecal fermentations should be carried out. Nevertheless, wheat germ seems to have potential to be a valuable compound to be used in Food Industry, mainly in the Bakery Industry. <p class="card-text"><strong>Keywords:</strong> <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=functional%20ingredients" title=" functional ingredients"> functional ingredients</a>, <a href="https://publications.waset.org/abstracts/search?q=prebiotic%20potential" title=" prebiotic potential"> prebiotic potential</a>, <a href="https://publications.waset.org/abstracts/search?q=wheat%20germ" title=" wheat germ"> wheat germ</a> </p> <a href="https://publications.waset.org/abstracts/31117/in-vitro-evaluation-of-prebiotic-potential-of-wheat-germ" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/31117.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">487</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> Screening and Improved Production of an Extracellular β-Fructofuranosidase from Bacillus Sp</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Lynette%20Lincoln">Lynette Lincoln</a>, <a href="https://publications.waset.org/abstracts/search?q=Sunil%20S.%20More"> Sunil S. More</a> </p> <p class="card-text"><strong>Abstract:</strong></p> With the rising demand of sugar used today, it is proposed that world sugar is expected to escalate up to 203 million tonnes by 2021. Hydrolysis of sucrose (table sugar) into glucose and fructose equimolar mixture is catalyzed by β-D-fructofuranoside fructohydrolase (EC 3.2.1.26), commonly called as invertase. For fluid filled center in chocolates, preparation of artificial honey, as a sweetener and especially to ensure that food stuffs remain fresh, moist and soft for longer spans invertase is applied widely and is extensively being used. From an industrial perspective, properties such as increased solubility, osmotic pressure and prevention of crystallization of sugar in food products are highly desired. Screening for invertase does not involve plate assay/qualitative test to determine the enzyme production. In this study, we use a three-step screening strategy for identification of a novel bacterial isolate from soil which is positive for invertase production. The primary step was serial dilution of soil collected from sugarcane fields (black soil, Maddur region of Mandya district, Karnataka, India) was grown on a Czapek-Dox medium (pH 5.0) containing sucrose as the sole C-source. Only colonies with the capability to utilize/breakdown sucrose exhibited growth. Bacterial isolates released invertase in order to take up sucrose, splitting the disaccharide into simple sugars. Secondly, invertase activity was determined from cell free extract by measuring the glucose released in the medium at 540 nm. Morphological observation of the most potent bacteria was examined by several identification tests using Bergey’s manual, which enabled us to know the genus of the isolate to be Bacillus. Furthermore, this potent bacterial colony was subjected to 16S rDNA PCR amplification and a single discrete PCR amplicon band of 1500 bp was observed. The 16S rDNA sequence was used to carry out BLAST alignment search tool of NCBI Genbank database to obtain maximum identity score of sequence. Molecular sequencing and identification was performed by Xcelris Labs Ltd. (Ahmedabad, India). The colony was identified as Bacillus sp. BAB-3434, indicating to be the first novel strain for extracellular invertase production. Molasses, a by-product of the sugarcane industry is a dark viscous liquid obtained upon crystallization of sugar. An enhanced invertase production and optimization studies were carried out by one-factor-at-a-time approach. Crucial parameters such as time course (24 h), pH (6.0), temperature (45 °C), inoculum size (2% v/v), N-source (yeast extract, 0.2% w/v) and C-source (molasses, 4% v/v) were found to be optimum demonstrating an increased yield. The findings of this study reveal a simple screening method of an extracellular invertase from a rapidly growing Bacillus sp., and selection of best factors that elevate enzyme activity especially utilization of molasses which served as an ideal substrate and also as C-source, results in a cost-effective production under submerged conditions. The invert mixture could be a replacement for table sugar which is an economic advantage and reduce the tedious work of sugar growers. On-going studies involve purification of extracellular invertase and determination of transfructosylating activity as at high concentration of sucrose, invertase produces fructooligosaccharides (FOS) which possesses probiotic properties. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=Bacillus%20sp." title="Bacillus sp.">Bacillus sp.</a>, <a href="https://publications.waset.org/abstracts/search?q=invertase" title=" invertase"> invertase</a>, <a href="https://publications.waset.org/abstracts/search?q=molasses" title=" molasses"> molasses</a>, <a href="https://publications.waset.org/abstracts/search?q=screening" title=" screening"> screening</a>, <a href="https://publications.waset.org/abstracts/search?q=submerged%20fermentation" title=" submerged fermentation"> submerged fermentation</a> </p> <a 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