蒙药白益母草不同采收期及不同部位有效成分差异性

Monthly and regional variability in effective components of Mongolian Baiyimucao

目的:以蒙药材白益母草为研究对象,比较生长期内药材的地上部分和不同部位中有效成分的含量区别,为制定质量标准、科学采收药材提供依据。方法:选取5、6、7月3个月份即药材生长期的全草及花、茎、叶3个不同的部位对比总生物碱、水苏碱和总黄酮的含量区别。结果:5月份采集药材的总生物碱、水苏碱、总黄酮含量均为最高,其中生物碱类成分主要分布在花和茎部位,黄酮类成分主要分布在花和叶部位。结论:白益母草药材适宜春末初夏(5月末6月初)采收,取材时尽量保证部位均一。

Objective： This research aims at monthly and regional variability of a kind of Mongolian herb-Baiyimucao in content of effective components.To provide basis data for the quality standards and the scientific harvest of Baiyimucao.Methods： Measuring the total alkaloid content,stachydrine content and total flavonoid content of Baiyimucao in monthly period（May,June,July） and different parts（flower,stem,leaf）.Results： We found that the content of the above three components were highest in May,moreover,the alkaloids are mainly distributed in the flower and stem parts,the flavonoid are mainly distributed in the flower and leaf parts.Conclusion： There were significant monthly and regional effects in alkaloids and flavonoid content of Baiyimucao.The early summer is the suitable time for harvest of Baiyimucao,and should maintain proper proportion in different parts.