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从汉防己根热水提取液中，分离得到两种葡聚糖，高效液相色谱法测得分子量为９．３×１０３和２．０×１０６，经甲基化分析、过碘酸盐氧化、Ｓｍｉｔｈ降解和部分酸水解确定两种多糖可能均以ａ（１→４）连接形成主链，在６－Ｏ上有分枝，两者分枝的类型和数目有所不同。
Two kinds of glucans were isolated from the hot water extract of Radix chinensis, and their molecular weights were 9.3×103 and 2.0×106 as determined by high performance liquid chromatography. Methylation analysis and periodate oxidation were performed. , Smith degradation and partial acid hydrolysis confirmed that the two polysaccharides may be linked by a(1→4) to form the main chain, and there are branches on 6-O. The types and number of the two branches are different.