银杏叶提取物中银杏黄酮苷元的提纯工艺研究
Research on separating and purifying flavonoid aglycones from the extract of ginkgo biloba leaves
作者:余沙;何珺;钱一鑫;康冀川;
Author:
收稿日期: 年卷(期)页码:2011,26(06):-577-579
期刊名称:华西药学杂志
Journal Name:WEST CHINA JOURNAL OF PHARMACEUTICAL SCIENCES
关键字:银杏黄酮苷元;分离;纯化
Key words:
基金项目:贵州省科技厅2008年省重大专项项目(2007065)
中文摘要
目的从银杏提取物中分离纯化黄酮苷元,寻找分离提纯银杏黄酮苷元的最优条件。方法对银杏提取物水解液的酸度、水解液的料液比、水解时间、水解液醇度、水解温度、萃取溶剂、萃取条件以及黄酮苷元的结晶进行研究。结果确定了最佳水解液为醇-盐酸为8∶2、最佳固液比为(g.mL-1)1∶50、水解时间2 h、水解温度60℃、萃取溶剂为乙醚-乙酸乙酯(3∶7)混合萃取,回收溶剂后采用甲醇反复结晶即可得90%以上的黄酮苷元晶体。结论采用酸水解、乙醚和乙酸乙酯混合溶剂回流萃取、甲醇重结晶的方法从银杏叶提取物中分离纯化出90%的银杏黄酮苷元的工艺可行。
参考文献
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