当归多糖XC-1的分离与结构研究  

Study on Isolation and Structure of Polysaccharide XC-1 from Angelica sinesis (Oliv) Diels

作　　者：陈汝贤[1] 徐桂云[2] 王海燕[1] 许鸿章[1] 刘叶民[2] 

机构地区：[1]中国协和医科大学中国医学科学院医药生物技术研究所,北京10005 [2]中国科学院化学研究所分子科学中心,北京100080

出　　处：《化学通报》2001年第6期372-374,共3页Chemistry

摘　　要：从中药岷当归 (Angelicasinensis)中用热水提取、乙醇沉淀、DEAE SephadexA 2 5柱层析分离得到多糖组分XC 1 ,凝胶色谱法测得分子量为 1 0× 1 0 5道尔顿 ,糖的组成分析表明XC 1只含葡萄糖 ,且经红外测定为α型葡萄糖 ,连接点分析证明葡萄糖主链是以 1 。A polysaccharide XC 1 was obtained from \%Angelica sinensis\% (Oliv) Diels by extraction with hot water, then alcohol precipitation, and further purified through DEAE Sephadex A 25 column chromatography. The molecular weight from GPC was 1.0×10\+5. The composition and glycosidic linkage of XC 1 was assayed by the capillary gas chromatography of its acetylated and methylated derivatives, respectively. The results showed that the main chain of polysaccharide is composed of α 1,6 D glucose.

关 键 词：当归多糖 分离 纯化 结构测定 中药 

分 类 号：O629[理学—有机化学]