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Characterisation and yield of the arabinogalactan-protein mucilage of taro corms

✍ Scribed by Jiang, Gaosong; Ramsden, Lawrence

Book ID: 101225135
Publisher: John Wiley and Sons
Year: 1999
Tongue: English
Weight: 93 KB
Volume: 79
Category: Article
ISSN: 0022-5142
DOI: 10.1002/(sici)1097-0010(199904)79:5<671::aid-jsfa233>3.0.co;2-h

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✦ Synopsis

The main component of the taro corm is starch but appreciable quantities of water-soluble mucilage are also present. Taro mucilage was cold-water extracted and puriüed by dispersion and hydrolysis of starch, removal of starch hydrolysate and unconjugated protein. Compositional analysis of puriüed cold-water-soluble taro mucilage (PCWX) showed that galactose and arabinose were the main monosaccharides in the hydrolysate of PCWX and that the main polymer present was an arabinogalactan-protein. The yield of mucilage from 12 taro varieties varied from 75.7 to 137.0 g kg-1 (dry wt basis) amongst diþ erent varieties. The purity of the ünal mucilage arabinogalactan was conürmed by ion-exchange chromatography and electrophoresis.

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