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溶剂萃取法脱除银杏酸工艺研究

Jing XU,Yuanfeng WU, Chaoyi XU,Yong CHENG, Chenglin GUAN,Huimin YAO

Journal of Zhejiang University of Science and Technology（2018）

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Abstract
通过溶剂萃取法脱除银杏叶提取物中的有害成分银杏酸,以银杏黄酮、银杏内酯和银杏酸的分配比为指标,考察了水相pH值、乙醇体积分数、有机相等对分配比的影响,优化了溶剂萃取法脱除银杏酸的工艺参数.结果表明,以p H值2.0、体积分数40％ 的乙醇为下相,正己烷为上相时,可有效脱除银杏叶提取物中的银杏酸,并且最大限度保留银杏黄酮和银杏内酯等活性成分.
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