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Guar gum, also called guaran, is a galactomannan polysaccharide extracted from guar beans that has thickening and stabilizing properties useful in food, feed, and industrial applications. [1] The guar seeds are mechanically dehusked, hydrated, milled and screened according to application. [ 2 ]
A dose of guar gum was administered to normal-weight and obese participants. A 10% reduction of energy was observed in the normal subjects, and a 30% reduction of energy for obese subjects. [ 23 ] Fibre supplementation has also been indicated to assist compliance to low-calorie diets, as indicated through decreased feelings of hunger and ...
The borate–guar reaction is reversible, and depends on the pH (hydrogen ion concentration) of the solution. This reaction is used to give the toy "slime" its consistency. Crosslinking of guar with borate occurs at high pH (approximately 9–10) of the solution. Guar gum has proven as useful substitute for locust bean gum (made from carob seeds).
Vegetable gum fiber supplements are relatively new to the market. Often sold as a powder, vegetable gum fibers dissolve easily with no aftertaste. In preliminary clinical trials, they have proven effective for the treatment of irritable bowel syndrome. [52] Examples of vegetable gum fibers are guar gum and gum arabic.
Other sugar polymers include vegetable gums such as pectin from Citrus peel, guar gum from the guar bean, and locust bean gum from the carob bean.. Agar, alginin and carrageenan are polysaccharides extracted from algae, xanthan gum is a polysaccharide secreted by the bacterium Xanthomonas campestris, and carboxymethyl cellulose is a synthetic gum derived from cellulose.
Humans have used natural gums for various purposes, including chewing and the manufacturing of a wide range of products – such as varnish and lacquerware.Before the invention of synthetic equivalents, trade in gum formed part of the economy in places such as the Arabian peninsula (whence the name "gum arabic"), West Africa, [3] East Africa and northern New Zealand ().