文献类型：期刊文献

中文题名：银杏叶黄酮甙浸提工艺的研究

英文题名：STUDY ON LEACHING TECHNOLOGY OF FLAVONOIDS FROM GINKGO BILOBA LEAVES

作者：王成章[1] 郁青[1] 陈祥[1] 谭卫红[1] 沈兆邦[1]

第一作者：王成章

机构：[1]中国林科院林产化学工业研究所

年份：1998

卷号：10

期号：2

起止页码：66-70

中文期刊名：天然产物研究与开发

外文期刊名：Natural Product Research and Development

收录：CSTPCD;;CSCD:【CSCD2011_2012】；

语种：中文

中文关键词：银杏叶黄酮甙;浸提;树脂;工艺

外文关键词：flavonoids of ginkgo biloba L. , leaching, resins

分类号：TQ464.3

摘要：对黄酮含量偏低的银杏叶子进行浸提研究,确定浸提剂为50％～60％乙醇水溶液,液固比为8:1～6:1,浸提温度为60～70℃,浸提时间3～1h,两次。黄酮的浸提率在85％以上;选用A-1和A-2型树脂混合吸附,得到银杏叶提取物产品,黄酮含量26％～31％,得率为1.6％～1.9％。该工艺已用于中试生产,成本较低。
The extraction of lower contents of flavonoids from Ginkgo biloba L. was studied, leaching conditions were identified as leaching regeant of 50%~60% EtOH-H2O,the ratio of liquid to solid for 8:1-6 : 1,leaching temperation between 60~70℃ and leaching time for 3h and 1h,two times, the extractive ratio of flavonoids was over 85 %. The extract of Ginkgo biloba which contained 26 % ~ 31 % flavonoids and had 1. 6%-1. 9% yields was prepared by the resins of A-1 and A-2. The technology has been used in pilot production and has lower product cost.