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The optimum extraction conditions of the flavonoids in Lonicera japonica leaves
Author(s): 
Pages: 520-523
Year: Issue:  6
Journal: WEST CHINA JOURNAL OF PHARMACEUTICAL SCIENCES

Keyword:  金银花叶黄酮类化合物提取工艺正交试验温浸法超声法;
Abstract: 目的 研究金银花叶中总黄酮的最佳提取工艺.方法 以乙醇为提取溶剂,分别采用温浸法和超声法从金银花叶中提取黄酮,并通过单因素考察和正交试验优化各自的工艺条件.结果 在优化的工艺条件下,温浸法提取总黄酮的收率为11.5%,超声法的收率为15.0%.工艺为用20倍量的50%乙醇浸泡金银花叶12 h后,于50℃超声提取.结论 从金银花叶中提取黄酮类化合物的较佳方法为超声波法.
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