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Guar gum
About: Guar gum is a research topic. Over the lifetime, 5611 publications have been published within this topic receiving 105940 citations.
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TL;DR: It is found that the digestion in rats of agar agar was 21%, pectin 19% and guar gum 76% when fed at levels of 15%, 10% and 6%, respectively.
37 citations
TL;DR: In this article, beet pectin, guar gum and soluble soy polysaccharides (SSPS) were assessed for their ability to protect the color of a commercial phycocyanin (PhyC) extract from thermal and proteolytic degradation.
37 citations
TL;DR: Results indicate that the component of rye that causes sticky feces was not changed by gamma irradiation and/or pectic enzyme, and, therefore, is different from the growth depressing factor and from citrus pectin.
37 citations
TL;DR: In this article, the ultraviolet-radiation-induced graft copolymerization of methyl acrylate with ceric ammonium nitrate as a photoinitiator was studied as a function of different reaction parameters.
Abstract: In an attempt to modify the sodium salt of partially carboxymethylated guar gum (Na-PCMGG; degree of substitution = 0.291), we studied the ultraviolet-radiation-induced graft copolymerization of methyl acrylate with ceric ammonium nitrate as a photoinitiator. The influence of the grafting yield was studied as a function of the different reaction parameters, and the optimum reaction conditions for photografting were determined. The various reaction parameters included the photoinitiator, nitric acid, and monomer (methyl acrylate) concentrations, the reaction time, the temperature, and the amount of the substrate. A kinetic scheme for photografting copolymerization was proposed, and the results were in good agreement with the kinetic scheme. The graft copolymerization of methyl acrylate onto Na-PCMGG (degree of substitution = 0291) in the presence and absence of ultraviolet radiation was also carried out for the study of the efficiency of the photoinitiator. The influence of carboxymethyl groups added to the guar gum molecule on its behavior toward ultraviolet-radiation-induced grafting with methyl acrylate was also investigated. The evidence of photografting was ascertained with IR spectroscopy and scanning electron microscopy techniques. © 2005 Wiley Periodicals, Inc. J Appl Polym Sci 97: 1977–1986, 2005
37 citations
TL;DR: Eleven binding agents were added at 3.0% dry weight or less to a trout feed intended for use as a crustacean diet, and only agar and the sodium alginates Keltone and Kelvis gave 24-h stability for both types of pellets.
Abstract: Eleven binding agents were added at 3.0% dry weight or less to a trout feed intended for use as a crustacean diet. Moist and dry food pellets were prepared, oscillated in beakers of 30°C water for 24 h, and inspected periodically for integrity. Two to six pellets prepared with each binding agent were tested. Dry pellets were generally less stable than moist ones. Only agar and the sodium alginates Keltone and Kelvis gave 24-h stability for both types of pellets. The alginates, when used with sodium hexametaphosphate as a sequestrant, produced much firmer pellets than agar, and Keltone produced slightly firmer pellets than Kelvis. Less successful binders, in approximate order of decreasing stability, were GFS (a mixture of three natural gums), Viscarin (a sodium carrageenin), a low viscosity chitosan, collagen, guar gum, Vitosan HMW (a chitosan), carboxymethyl cellulose, and cornstarch.
37 citations