对不同生长时期银杏叶总黄酮含量的测定  

Determination of total amount of flavonoids in Ginkgo biloba L. leaves during different growing periods

作　　者：周开志[1] 叶春 叶在荣[1] 

机构地区：[1]贵州大学生物技术学院食品科学系,贵州贵阳550025

出　　处：《山地农业生物学报》1999年第6期407-408,共2页Journal of Mountain Agriculture and Biology

摘　　要：为开发和利用我省银杏叶资源,寻找适时的采收期,通过分光光度法测定了贵州大学校园内同一株银杏树在不同生长时期银杏叶中总黄酮含量。测定结果表明,在4 ～10 月份采收期间,以干物质计100 g 银杏叶中总黄酮含量在992 ～2 812 mg 之间。不同生长时期采收的银杏叶,总黄酮含量不同,但有明显的规律,在5 月中旬至6 月底,黄酮类化合物的含量最高,为2 536～2 812 mg。Total amount of flavonoids in Ginkgo biloba L. leaves has been determined with a spectrophotometer. The leaves were collected from the same plant in the campus of Guizhou University during different growing periods. The results show that the total amount of flavonoids in the leaves is between 992-2 812 mg in 100 g(dry leaves)from April to October. The total amount of flavonoids is depended on the growing period, the best period for collectoin is between the middle ten days of May and the end of June, it is between 2 536-2 812 mg.

关 键 词：银杏叶 黄酮类化合物 植物化学 植物分析 

分 类 号：S792.950.8[农业科学—林木遗传育种]