Topic
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: In this paper, a fast rheological method consisting of non-linear creep tests to detect shear-induced microstructural transitions was proposed to detect micro-structural transition.
42 citations
TL;DR: In this paper, the interaction of guar gum with chalcopyrite has been investigated, and the adsorption process is governed primarily by chemical interaction between the hydroxyl groups of the guar groups and hydroxilated chalopyrite, apart from hydrogen bonding.
42 citations
TL;DR: In this article, a matrix tablet was prepared using xanthan gum and guar gum in varying proportions, and the suitability of the prepared tablets was evaluated for colon specific drug delivery.
Abstract: Matrix tablets were prepared using xanthan gum (XG) and guar gum (GG) in varying proportions, and the suitability of the prepared tablets was evaluated for colon specific drug delivery. Indomethacin was used as a model drug. The ability of the prepared matrices to retard drug release in the upper gastrointestinal tract (GIT) and to undergo enzymatic hydrolysis by the colonic bacteria was evaluated. For this, drug release studies were carried out in the presence of rat cecal content. Further cecal content of rats with induced enzymatic activity were used. To ascertain the role of bacterial flora in carrying out the hydrolysis of the tablet, cecal content of rats treated with antibiotics were used in the dissolution media. Presence of XG in combination with GG in the tablets could retard drug release in the conditions of the upper GIT. However, the presence of GG and starch made these matrices microbially degradable. Guar gum alone as a drug release-retarding excipient in the matrices does not achieve the desired retardation. Presence of XG in the tablets not only retards the initial drug release from the tablets, but due to high swelling, makes them more vulnerable to digestion by the microbial enzymes in the colon.
42 citations
TL;DR: The effect of frozen storage and subsequent thawing under microwave heating on fresh bread quality was investigated in this article, where two different flour types were used: xanthan and guar gum.
42 citations
TL;DR: The grafting of polyacrylamide on to guar gum in aqueous medium initiated by the potassium persulfate/ascorbic acid redox system has been studied gravimetrically at the temperature 35 ± 0.2°C in the presence of atmospheric oxygen and Ag+ ions as mentioned in this paper.
Abstract: The grafting of polyacrylamide on to guar gum in aqueous medium initiated by the potassium persulfate/ascorbic acid redox system has been studied gravimetrically at the temperature 35 ± 0.2°C in the presence of atmospheric oxygen and Ag+ ions. The rate of grafting was found to increase with temperature, concentration of redox components, acrylamide, and guar gum. But at higher concentration of guar gum, the rate of grafting was found to decrease. A mechanism for grafting and suitable rate expression have been suggested.
42 citations