天然产物研究与开发 ›› 2014, Vol. 26 ›› Issue (10): 1715-1718.

• 开发研究 • 上一篇    下一篇

响应面法优化康定鼠尾草中迷迭香酸提取工艺

迟晓峰,董琦,胡风祖*   

  1. 中国科学院西北高原生物研究所 中国科学院藏药研究重点实验室,西宁810008
  • 出版日期:2014-10-30 发布日期:2014-10-31

Optimization of Extraction Technology for Rosmarinic Acid from Salvia prattii Hemsl.by Response Surface Analysis

CHI Xiao-feng,DONG Qi,HU Feng-zu*   

  1. Key Laboratory of Tibetan Drug Research,the Chinese Academy of Sciences Northwest Institute of Plateau Biology of Chinese Academy of Sciences, Xining 810008, China
  • Online:2014-10-30 Published:2014-10-31

摘要: 利用单因素实验和响应面法优化康定鼠尾草中迷迭香酸提取工艺。采用高效液相色谱法测定迷迭香酸含量,以提取率为参考指标。通过单因素实验筛选出料液比、提取时间和乙醇浓度三个主要因素,通过Box-Behnken设计方案,建立迷迭香酸提取得率的二次回归方程,得到优化组合条件。最佳提取条件为乙醇浓度40%,液固比15:1,提取时间50 min。最佳提取条件下,迷迭香酸提取得率为12.30 mg/g。优化得到的康定鼠尾草中迷迭香酸的提取工艺合理,操作可行,质量稳定。

关键词: 康定鼠尾草, 迷迭香酸, 响应面法

Abstract: The extraction technology for rosmarinic acid from Salvia prattii Hemsl.was optimized by single factor tests and response surface analysis.The content of rosmarinic acid was determined by HPLC and the extraction yield of rosmarinic acid was used as the investigation index.In order to obtain the maximum of extraction yield of rosmarinic acid,three main factors including ratio of solid to liquid,extraction time and concentration of ethanol were selected through single factor tests and further optimized using response surface analysis with Box-Behnken design. As a result,a quadric regression equation for predicting the yield of rosmarinic acid was established. The optimal extraction conditions were determined to be:1:15 as ratio of solid to liquid, 40% of alcohol as extraction solvent and extract for 50 min. Under these conditions,the extraction yield of rosmarinic acid was 12.30 mg/g.The optimal extraction condition was proved to be stable and feasible for the extraction of rosmarinic acid from S.prattii.

Key words: Salvia prattii Hemsl., rosmarinic acid;response surface analysis

中图分类号: 

R915