Guar gum, also known as guar gum, is a natural gum made from the endosperm of annual leguminous seeds cultivated in arid areas of India and Pakistan through drying, grinding, pressure hydrolysis, precipitation with 20% ethanol, centrifugation, drying and crushing.
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Guar gum is made by peeling, degerming, drying and crushing the endosperm of guar, adding water, hydrolyzing under pressure, precipitating with 20% ethanol solution, centrifugal separation, drying and crushing. In recent years, guar gum has been further processed into carboxymethyl anion, hydroxyalkyl nonionic and quaternary ammonium cation derivatives, which are widely used.
Their number and importance are increasing rapidly. As an edible crop in India and Pakistan subcontinent, guar has been cultivated for hundreds of years, and it has also been successfully cultivated in the southeastern United States. Guar gum is a kind of free-flowing powder from white to yellowish brown, which is almost odorless and tasteless. It can be dispersed in hot water or cold water to form viscous liquid, which is a kind of natural rubber with high viscosity. ?