Extraction and Application of Polysaccharide in Tamarind Seed

The extraction of polysaccharide from tamarind seeds and its rheological properties were studied. The polysaccharide, a pectin, was extracted from tamarind seeds with hot water, then precipitated by isopropanol, filtered, and dried. The resultant product was an odorless white powder with light brown shade and had a very good stability (such as resistance to heating, salts, and acids) and tackiness (a synergism with carbohydrate). The yield of the polysaccharide was about 66.8% and the viscosity of its 1.5%(w/w) aqueous solution was about 665 \{mPa·s\}. The water\|tolerant ability of reconstituted tobacco was significantly improved after addition of the polysaccharide as an adhesive.