摘要
目的 研究中药菟丝子 Cuscuta chinensis L am.种子中的多糖成分。方法 采用 DEAE- cellulose离子交换与凝胶层析方法进行分离纯化 ,通过理化常数 ,化学和光谱分析研究其化学结构特征。结果 分别从稀碱提取物与沸水提取物中分得 2个多糖 ,即 H6与 H8,其中 H6的相对分子量为 3.14× 10 5u,而 H8的相对分子量大于 1.0×10 6 u,两者均为结构复杂的中性杂多糖 ,都是由阿拉伯糖 ,鼠李糖 ,木糖和半乳糖组成。
Object Polysaccharide constituents in the seed of Cuscuta chinensis Lam were investigated Methods Individual constituent was isolated and purified by DEAE cellulose and gel filtration chromatography, and its structural features were further studied by physicochemical constants, and spectral analysis Results Two polysaccharides, named H6 and H8, were obtained from alkalescent or boiling water extract fractions, respectively The molecular mass of H6 was 3 14×10 5 and that of H8 was more than 1 0×10 6 Both structures were found to be complex neutral heteropolysaccharides composed of Ara, Rha, Gal and Xyl Conclusion These polysaccharides were obtained from this plant for the first time
出处
《中草药》
CAS
CSCD
北大核心
2001年第8期675-678,共4页
Chinese Traditional and Herbal Drugs
关键词
菟丝子
中性杂多糖
NMR光谱
甲基化分析
Cuscuta chinensis Lam.
neutral heteropolysaccharides
NMR spectrum
methylation analysis
