Journal
FOOD CHEMISTRY
Volume 134, Issue 4, Pages 1967-1972Publisher
ELSEVIER SCI LTD
DOI: 10.1016/j.foodchem.2012.03.127
Keywords
Cassia seed; Polysaccharides; alpha-amylase; Pancreatic lipase; Cholesterol; Bile acids
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The popular beverage ingredients Cassia obtusifolia and Cassia tora were found to have considerable amounts of water-soluble polysaccharides (WSPs) (58.5 and 55.9/100 g of dried extract). The composition, characteristics, and in-vitro physiological effects of these polysaccharides and their possible health benefits were investigated. The major polysaccharide components in the WSP of C. obtusifolia were possibly pectic polysaccharides and hemicellulose, while C. tora WSP was mainly composed of arabinoglucan and pectic polysaccharides. These WSPs had inhibitory effects on the activities of alpha-amylase and pancreatic lipase, while they rendered an increase in protease activity. These WSPs also had the ability to bind bile acids and reduce the amount of cholesterol available for absorption. This suggested that these WSPs had potential application as herbal ingredients in beverages. Further investigations on their in-vivo hypocholesterolaemic effects and intestinal functions using animal-feeding experiments are under way. (C) 2012 Elsevier Ltd. All rights reserved.
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