山东4种菟丝子多糖含量的比较研究

将提取液透析,用苯酚-浓硫酸法测定山东4种菟丝子多糖的含量.结果:山东产4种菟丝子的多糖含量在4.41%～12.73%之间.以金灯藤的含量最高,平均为10.18%;南方菟丝子含量较低,平均为5.39%.还原糖也以两种大粒菟丝子的含量高. 结论:单柱亚属菟丝子的多糖平均含量比线茎亚属菟丝子约高一倍,同亚属的菟丝子多糖含量接近.

Comparative Study on the Polysaccharide Contents of 4 Species of Plants in Shangdong Province Used as Tusizi, a Traditional Chinese Drug

The extracts of the 4 species of plants in Shandong Province used as tusizi, a traditional Chinese drug, were dialysed for determining their polysaccharide contents by the phenol concentrated sulphuric acid method. The results showed that the polysaccharide contents of the 4 plants were from 4 41% to 12 73%; the highest polysaccharide content, 10 18% on the average, was found in Cuscuta japocica Choisy, and the lowest polysaccharide content, 5 39% on the average, was found in Cuscuta australis R. Br.; and the reducing sugar contents of the plants in subgenus Monogyna were higher than those of the plants in subgenus Crammica. Conclusion: the average polysaccharide contents of the plants in subgenus Monogyna were nearly twice as high as those of the plants in subgenus Crammica while the polysaccharide contents of the plants in the same subgenus were about at the same level.