产地和树龄对落地银杏叶中黄酮和内酯含量影响的研究

摘要

Objective:to study total flavonoids and total terpene lactones content changes in ground Ginko leaves of the different ages and different origin.Methods:collecting different ages and different origin leavesto determining the content of total flavonoids and total terpenelactones.Conclusion:the different origin of the tree has big influence of flavonoids,but little on total terpene lactones content;The flavonoidsand lactone content all decreased with the tree ages.%目的:研究产地和树龄对落地银杏叶中黄酮和内酯含量的影响,为落地银杏叶的综合利用提供基础研究.方法:分别收集不同产地和树龄的落地叶样品测定其黄酮和内酯的含量,考察产地和树龄对落地银杏叶中有效成分含量的影响.结论:不同产地落地银杏叶黄酮变化较大,内酯含量较为接近;随着树龄的增长落地银杏叶黄酮和内酯含量均呈现降低的趋势.落地叶与正常叶比较,落地叶中黄酮和内酯均明显低于采摘叶.