虎杖中白藜芦醇的超声提取条件优化

Jiangsu Agricultural Sciences(2012)

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Abstract
以中药虎杖粉末为原料,利用超声波强化提取白藜芦醇化合物,用荧光分析法分析其含量.在单因素试验的基础上,采用正交试验,考察了溶剂、料液比、温度、时间对白藜芦醇提取率的影响.试验结果表明,虎杖中白藜芦醇的最佳提取条件为80%乙醇:80%丙酮1:3(体积比)为提取液、料液比1:6(质量体积比,g:mL)、超声温度70℃、超声时间5 min.在上述提取条件下,白藜芦醇的提取率为2.612%.
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