Effects of Xanthan Gum Biopolymers on Gypseous Soils Characteristics
نویسندگان
چکیده
منابع مشابه
Charge screening effects on filament dynamics in xanthan gum solutions
We experimentally investigate the filament dynamics of non-Newtonian drops falling under gravity through air, and report the effects of semiilute concentrations of the polyelectrolyte polymer xanthan gum mixed in 80:20 glycerol/water with varying concentrations of potassium chloride KCl). We find that the addition of 780 ppm xanthan gum to the glycerol/water solvent dramatically increases the d...
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Background: Xanthomonas campestris is a biopolymer producing gram negative bacterium. Production of xanthan biopolymer can be affected by different extrinsic factors as well as surfactants. Hitherto, effects of nonionic surfactants on xanthan production have been studied in a limited number of articles.Objective: In the present study, nonionic surfactants...
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Strains tentatively identified as Bacillus sp. were isolated from sewage sludge and soil and shown to elaborate extracellular enzymes that degrade the extracellular polysaccharide (xanthan gum, polysaccharide B-1459) of Xanthomonas campestris NRRL B-1459. Enzyme production by one strain was greatly enhanced when the strain was incubated in a mixed culture. Products of degradation were identifie...
متن کاملXanthan gum: production, recovery, and properties.
Xanthan gum is a microbial polysaccharide of great commercial significance. This review focuses on various aspects of xanthan production, including the producing organism Xanthomonas campestris, the kinetics of growth and production, the downstream recovery of the polysaccharide, and the solution properties of xanthan.
متن کاملXanthan gum and colonic function in man.
It was with interest that I read this paper, which looks at the effect of feeding xanthan gum on colonic function in man. The authors look at whether it is possible to predict the laxative effect of a polysaccharide from its fermentation characteristics in vitro, as proposed by Adiotomre et al. (1990). However, the authors have not used the methodology used in the Adiotomre paper and, therefore...
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ژورنال
عنوان ژورنال: Tikrit Journal of Engineering Sciences
سال: 2020
ISSN: 1813-162X,2312-7589
DOI: 10.25130/tjes.27.2.03