摘要
本文对银杏叶总黄酮的捉取条件进行了探讨。用７０％乙醇溶液，１２倍用量，回流３小时，提取２次，总提取率可达８ｌ．７％。同时发现秋天的银杏叶总黄酮含量高于春、夏季。
The extraction method for total flavonoids in gingko foliage has beenstudied in this paper.The optimal extracting procedure was concluded as follows:use 12 timesby wt. of 70% alcohol as solvent,refluxing twice,3 hours each,the percentage yield was81.7%.The content of total flavonoid in gingko foliage in autumn is higher than in spring or In summer.
出处
《中国食品添加剂》
CAS
1995年第2期21-23,共3页
China Food Additives
