摘要
研究了乙醇-水体系浸取银杏叶中黄酮类化合物的工艺条件,通过分光光度法测定黄酮的含量并计算它的浸出率。根据黄酮类化合物浸出率的计算结果,选用70%乙醇溶液为提取剂,并通过正交试验给出了黄酮类化合物的最佳浸出条件:浸取温度70℃,固液比1∶20,浸取剂pH=8,银杏叶中黄酮类化合物的浸出率可达到92.2%。
Process for the extraction of flavones from Ginkgo leaves with ethanol - water was studied, and content of flavanes was determined by spectrophotometry. The optimal condition was chosen by orthogonal tests as extraction with 70% ethanol at 70℃, ratio of solid to liquid 1 ： 20 and at pH 8, and the extraction rate of flavones reach 92.2%.
出处
《云南化工》
CAS
2006年第2期22-23,共2页
Yunnan Chemical Technology
