【摘要】 利用水提醇沉、Sevage法及木瓜蛋白酶法从食品级的罗望子胶中分离、纯化罗望子多糖,得到的罗望子多糖纯度为92.7%。采用氯磺酸-吡啶法合成罗望子多糖硫酸酯,元素分析法测得其取代度为1.4;红外表征发现硫在合成产物中以S=O双键和C-O-S形式存在。更多还原

【Abstract】 A water-soluble polysaccharide was extracted from tamarind seed gum by method of boiling water and ethanol deposition. The crude polysaccharide was deproteined by Sevage combined with papain. The content of polysaccharides was 92.7%. Tamarind seed polysaccharides were sulfated by chlorosulfonic-pyridine methods,and its substitution degree was 1.4 measured by methods of elemental analysis. IR characterization showed that sulfur existed in the title products in the form of S=O and C-O-S.更多还原