银杏叶黄酮、萜内酯含量的季节性变化及适采期研究  

Studies on seasonal variation of flavonoids, ginkgolides and the optimum harvest time on leaves of ginkgo

作　　者：樊卫国[1] 刘进平[1] 何珺[2] 文晓鹏[1] 安华明[1] 史继孔[1] 

机构地区：[1]贵州大学农学院园艺系,贵州贵阳550025 [2]贵州大学生化营养研究所,贵州贵阳550025

出　　处：《山地农业生物学报》2000年第2期117-120,124,共5页Journal of Mountain Agriculture and Biology

基　　金：贵州省"九五"科技攻关项目! [黔科字 (1 996 ) 1 0 33]的部分研究内容

摘　　要：为了掌握银杏叶品质和产量的形成规律 ,对银杏叶黄酮、萜内酯含量的季节性变化及适宜采收期进行了研究 ,结果表明 ,5月份前 ,银杏新梢幼叶中黄酮含量最高 ,达到 2 74 % ;随叶龄增大黄酮含量迅速降低 ,到 6月中旬达到最低 ,为 1 0 5% ;7～ 9月银杏叶黄酮含量有所增加。银杏萜内酯含量和单叶干重随叶龄增大而增加 ,到 8～ 9月处于最高水平 ,分别为 0 2 5%～ 0 2 6 %和0 30 %～ 0 32 %。Seasonal variation of flavonoids, ginkgolides and the optimum harvest time on the leaves of ginkgo tree were studied. The results showed that the content of flavonoids was the highest in young leaf by 2 74% before May. Thereafter it dropped in the next two months, with the lowest content by 1 05%. Then it came to increase gradually from July. With the development of the leaf the content of ginkgolides and dry weight of per leaf increased to the highest level from August to September and they were 0 25%-0 26% and 0 30%-0 32% respectively.According to the results the optimum harvest time of ginkgo leaf was determined.

关 键 词：银杏黄酮 银杏萜内酯 季节性变化 采收期 银杏叶 

分 类 号：S567.190.9[农业科学—中草药栽培] S567.190.1[农业科学—作物学]