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化学学报
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化学学报 ›› 1988, Vol. 46 ›› Issue (11): 1101-1104. 上一篇    下一篇

研究论文

黄芪葡聚多糖的化学结构

方积年;WAGNER, H   

  1. 中国科学院上海药物研究所;慕尼黑大学药物生物研究所
  • 发布日期:1988-11-15

Chemical structure of a glucan from astragalus mongholicus

FANG JINIAN;WAGNER, H   

  • Published:1988-11-15

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1007

被引次数

85

从植物黄芪(Astragalus mongholicus Bunges)根的碱性水提取液中得到一水溶性多糖黄芪葡聚糖. 它由单一葡萄糖残基构成, 分子量为5x10^4. 甲基化、过碘酸盐氧化、Smith降解和部分水解后, 揭示了它是以1,4-葡萄糖残基为主链, 并在6-O有分枝、重复单元为10个葡萄糖残基的葡聚糖(结构如3所示).

关键词: 黄芪, 分子结构, 葡萄糖, 多糖

A water-sol. glucan was isolated from the alkaline aqueous extract of A. mongholicus roots. Its mean mol. wt. was estimated to be 5 ?104. Methylation anal., periodate oxidation, Smith degradation and partial hydrolysis showed that it is a (1?) linked a-D-glucan with glucosyl side chains attached to the 6-O of the glucosyl residues of the main chain.

Key words: ASTRAGALUS, MOLECULAR STRUCTURE, GLUCOSE, POLYSACCHARIDE

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