食品科学 ›› 2011, Vol. 32 ›› Issue (16): 62-66.doi: 10.7506/spkx1002-6630-201116013

• 工艺技术 • 上一篇    下一篇

响应面分析法优化怀地黄中梓醇提取工艺

徐定华,朱文学*   

  1. 河南科技大学食品与生物工程学院
  • 出版日期:2011-08-25 发布日期:2011-07-26

Response Surface Methodology as an Approach to Optimize Catalpol Extraction from Radix Rehmannia glutinosa

XU Ding-hua,ZHU Wen-xue*   

  1. (College of Food and Bioengineering, Henan University of Science and Technology, Luoyang 471003, China)
  • Online:2011-08-25 Published:2011-07-26

摘要: 目的:优化回流辅助提取怀地黄中的梓醇工艺。方法:在单因素试验基础上,采用响应面法,以梓醇的提取得率为响应值,通过回归分析各工艺参数与响应值之间的关系,并由此预测最佳的工艺条件。结果:回流提取的最佳条件为甲醇体积分数72.94%、提取温度54.8℃、料液比(g/mL)1:18.7、提取时间3.0h。该条件下提取2次,梓醇的提取得率达到3.513%。结论:响应面法优化回流辅助提取怀地黄中梓醇的预测准确、方便,所得的最佳提取工艺条件高效、可行。

关键词: 地黄, 梓醇, 提取, 响应面分析

Abstract: Objective: To optimize the process parameters of solvent reflux extraction of catalpol from Radix Rehmannia glutinosa. Methods: On the basis of one-factor-at-a-time experiments, response surface methodology (RSM) was used for process parameter optimization. A regression model was established describing catalpol extraction yield as a response to various process parameters. Results: The optimal extraction conditions were 72.94% methanol aqueous solution as the extraction solvent, extraction temperature 54.8 ℃, extraction time 3.0 h and number of repeated extractions 2. Under these conditions, the catalpol extraction yield was 3.513%. Conclusion: The established regression model can accurately and conveniently predict catalpol extraction yield. The optimal extraction process obtained is efficient and feasible.

Key words: Rehmannia glutinosa Libosch, catalpol, extraction, response surface methodology

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