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Showing 1 to 20 of 25 for “"exopolysaccharides"”.
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Effect of Exopolysaccharides on Pseudomonas aeruginosa Physiology
… by aself-produced matrix composed of proteins, exopolysaccharides (EPS), nucleic acids, and lipids. Biofilm matrix composition mediates how bacteria interact with one another and their environments. The biofilm matrix of the opportunistic pathogen P. aeruginosa contains up to three chemically …
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Exopolysaccharides Modify Functional Properties of Whey Protein Concentrate
… (WPC) with modified functionality using exopolysaccharides (BPS) producing cultures and utilize modified WPC to replace egg whites in cake. Two different BPS-producing cultures, Lactococcus lactis ssp. cremoris (JFR) and Streptococcus thermophilus (DP), producing BPS 1 and BPS2 …
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Studies of symbiotically important Rhizobium meliloti exopolysaccharides EPSII and succinoglycan
Thesis (S.M.)--Massachusetts Institute of Technology, Dept. of Biology, 1999.
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Application of Salt Whey in Process Cheese Food Made from Cheddar Cheese Containing Exopolysaccharides
… in making process cheese. In the first study, an exopolysaccharides (EPS) producing culture (JFR) was used to reduce rigidity and improve meltability of young Cheddar cheese. A non-BPS-producing culture (DVS) was applied in making control cheese. To obtain similar composition in the EPS - positive …
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Effect of Microbial Exopolysaccharides in Soil on Metal Availability to Plants (Copper, Cadmium, Binding)
… (1) What is the affinity and capacity of exopolysaccharides for bound metals? (2) Do exopolysaccharides persist in soils long enough for their metal binding to affect the concentration of metals in the soil solution? (3) Can exopolysaccharides diminish metal uptake by plants?
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Physico-chemical and therapeutic properties of low-fat yogurt as influenced by fat replacers, exopolysaccharides and probiotics
The general objective of this research was to develop a low-fat probiotic yogurt using fat replacers and EPS producing strains of Streptococcus thermophilus along with probiotics and to establish its antihypertensive property in vitro and in vivo. The specific aims of this project were: a) to …
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Activité autolytique de bactéries lactiques et action anti-escherichia coli de symbiotiques à base d'extraits d'exopolysaccharides
Le but de cette étude expérimentale était d'évaluer l'effet protéolytique de symbiotiques constitués de probiotiques riches en autolysine et d'EPS sur le pathogène gastro-intestinal Escherichia coli. À l'exception du Bifidobacterium lactis et du Lactobacillus casei estraits à partir de yaourts …
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Optimization of Growth Conditions of Selected Exo-Polysaccharides Producing Lactic Acid Bacteria in Whey Mineral Concentrate
… and gritty mouthfeel. Neutral and phosphorylated exopolysaccharides (EPS) produced by lactic acid bacteria (LAB) have the potential to improve the solubility and reduce the gritty mouthfeel of whey mineral concentrate since they can function as a nucleation site for the formation of calcium …
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Reduction of salt in yeasted wheat bread: impact on bread quality and solutions using sourdough fermented by functional lactic acid bacteria strains
… functionalities were based on the production of exopolysaccharides as well as the production of antifungal compounds. While the exopolysaccharides, mainly high molecular dextrans, positively influenced mainly bread loaf volume, crumb structure and staling rate, the strains producing antifungal …
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Structural studies of the capsular polysaccharides from some strains of Klebsiella and Cryptococcus neoformans micro-organisms
The structures of the exopolysaccharides from a number of strafos of the bacterial genus KlebsieUa have been investigated and compared. ·All of these polysaccharides have been shown to be composed of regularly repeated oligosaccharide units containing -glucuronic acid and three to five hexose …
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Regulation of Exopolysaccharide Production in Myxococcus Xanthus
… localized type IV pili (Tfp). Besides Tfp, exopolysaccharides (EPS), another cell surface associated component, are also required for M. xanthus S motility. Previous studies demonstrated that the Dif chemotaxis-like signal transduction pathway is central to the regulation of EPS production …
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Structural Insights into Modification and Export of the Pseudomonas aeruginosa Alginate Exopolysaccharide
… a variety of different components, including exopolysaccharides. During chronic lung infections, P. aeruginosa converts to a mucoid phenotype by constitutive expression of the AlgU/T regulon. As a result, P. aeruginosa overproduces the alginate exopolysaccharide, leading to worse patient …
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Investigation of exopolysaccharide production by lactic acid bacteria.
… is an investigation into the production of exopolysaccharides (EPS) produced by strains of Lactobacillus delbrueckii ssp. bulgaricus and Lactococcus lactis ssp. cremoris. These are used in the dairy industry for the production of yoghurt and fermented drinks products. For many years EPS …
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Biochemistry and functional analysis of exopolysaccharide production in Lactobacillus johnsonii
Lactic Acid Bacteria (LAB) produce unique exopolysaccharides (EPS) that are important in food industry but they also play critical role in bacterial interactions during colonisation of the gastrointestinal tract. The role of this layer in the virulence of pathogenic bacteria has been well described …
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Biosynthesis of Nucleotide Sugar Monomers for Exopolysaccharide Production in Myxococcus Xanthus
… two cellular structures: type IV pili (TFP) and exopolysaccharides (EPS). Previous studies have shown that M. xanthus does not use glucose or any other sugar as a primary carbon source. However, eight monosaccharides, namely glucose, mannose, arabinose, galactose, xylose, rhamnose, …
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Assessing the involvement of BslA in plant-root associated biofilms
… extracellular matrix. The matrix is composed of exopolysaccharides, proteins and nucleic acids, and provides protection to the cells from various stresses. One microorganism that relies on biofilm formation for biocontrol, is the Gram-positive soil-dwelling bacterium Bacillus subtilis. B. …
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Evolution and phenotypic diversification in serratia marcescens biofilms
… were generated, molecular analyses revealed that exopolysaccharides and lipopolysaccharides are important moieties that are involved in phenotypic variation in S. marcescens biofilms. The etk gene, encoding a tyrosine protein kinase within the exopolysaccharide biosynthesis operon, was found to …
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Fundamental studies of sourdoughs fermented with Weissella cibaria and Lactobacillus plantarum: influence on baking characteristics, sensory profiles and in vitro starch digestibility of gluten-free breads
… associated with the formation of organic acids, exopolysaccharides (EPS), aroma or antifungal compounds. Initially, the suitability of two lactic acid bacteria strains to serve as sourdough starters for buckwheat, oat, quinoa, sorghum and flours was investigated. Wheat flour was chosen as a …
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Charakterisierung von spontan phagenresistenten Vibrio cholerae O1 El Tor Mutanten
… ausgehend von UDP-Glukose für die Synthese des Exopolysaccharides (VPS) notwendig ist. Virulenzstudien in neugeborenen Mäusen ergaben, daß O-Antigen negative Stämme sowie galU-Mutanten sehr viel schlechter und R-LPS-Mutanten nicht mehr im Dünndarm kolonisieren konnten. Da galE und galEK-Mutanten …
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Production and Characterization of a Novel Extracellular Polysaccharide Produced by Paenibacillus velaei, Sp. Nov
Paenibacillus velaei, sp. nov. is a soil bacterium capable of producing an unusually large amount of exopolysaccharide (EPS). The EPS contains glucose, mannose, galactose and fucose in a molar ratio of 4:2:1:1. The molecular weight of the EPS is higher than 2x106. The viscosity of 1% EPS is 1300 cP …
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