石韦;_总黄酮;_鞣质_____石韦;_总黄酮;

正交设计研究石韦总黄酮和鞣质提取工艺

http://www.100md.com 《时珍国医国药》 2007年第2期

石韦;,总黄酮;,鞣质,,石韦;,总黄酮;,鞣质,1材料和方法,2结果,3讨论,参考文献：

     摘要：目的优化石韦总黄酮和鞣质的超声提取工艺。方法以总黄酮和鞣质含量为考察指标，通过正交设计试验筛选石韦总黄酮和鞣质的最佳超声提取工艺。结果总黄酮的最佳提取条件为A1B3C2D2，即φ(乙醇)=60%，m[φ(乙醇)]∶m(石韦)=20∶1，提取时间60 min，共提取2次，测得石韦中总黄酮的平均含量为3.768%；鞣质的最佳提取条件为A1B3C2D1，即φ(乙醇)=10%， m[φ(乙醇)]∶m(石韦)=20∶1，提取时间30 min，提取1次，测得石韦鞣质平均含量为6.266%。结论通过正交设计实验优选得到的石韦总黄酮和鞣质的超声提取工艺条件稳定可行。

    关键词：石韦; 总黄酮; 鞣质

    Study of Ethanol Extraction Process for Total Flavonoids And Tannin Containment of Flolium Pyrrosiae by Orthogonal Design

    WANG Zijun, YANG Hongbing, QI Yu, BIAN Li

    (College of Chemistry and Chemical Engineering, Shihezi University, Shihezi, Xinjiang 832002, China)

    Abstract:ObjectiveTo optimize ultrasonic extracting process of the total flavonoids of and tannin Flolium pyrrosiae with orthogonal design. MethodsThe optimum ultrasonic extraction conditions were investigated by orthogonal design and with the total flavonoids and tannin as the content index. ResultsThe optimum extraction condition of the total flavonoids obtained was: A1B3C2D2 ......

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