guar gum

Scope note: Guar is a yellowish-white powder which is dispersible in hot or cold water, obtained from the seed of the guar plant Cyamopsis tetragonoloba grown commercially in India and the United States. The water-soluble portion (approx. 85% by wt.) is called guaran and consists of polysaccharides of mannose (63%) and galactose (35%) and about 5-7% wt. of protein. Aqueous solutions of guar have a neutral pH and may be turn into a gel by the addition of small amounts of Borax. Guar gum is used as dye solution thickeners in textile printing, for texture and stabilization in food products and as a strengthener in paper.

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