正交设计优选超声提取蜘蛛香中缬草素的提取工艺

The Orthogonal Test for Optimization of the Valtrate Extracting Procedure from Valeriana Wallichii DC

目的：研究超声波提取蜘蛛香中缬草素的最佳工艺。方法：采用4因素3水平L9（3^4）正交试验法，以缬草素的得率为考察指标，对超声波提取蜘蛛香中缬草素的工艺进行优化。在优选出的超声波最佳提取工艺条件下，将该法与渗漉法进行比较。结果：优选的超声波提取蜘蛛香中缬草素的最佳工艺条件为：药材粉碎，过40目筛，浸泡30min后，用相当于药材8倍重量的95％乙醇提取3次，每次提取40min。结论：超声波提取法可用于蜘蛛香中缬草素的提取。

This work aimed to optimize the extracting process of valtrate from Valeriana wallichii DC （V. jatamansi Jones） by supersonic wave. The orthogonal experiment L9（3^4） was adopted, and the gaining rate of vahrate was used as the evaluating criterion. The optimal conditions were as follows： the plant material was powdered, passed through a 40 mesh sieve, soaked for 30min, and extracted for 3 times with 8-fold weight 95% ethanol for 40min each time. The results showed that supersonic wave is suitable for the extraction of valtrate from V. wallichii.