天然产物研究与开发 ›› 2015, Vol. 27 ›› Issue (2): 301-305.doi: 10.16333/j.1001-6880.2015.02.022

• 开发研究 • 上一篇    下一篇

响应面法优化泡桐叶中熊果酸的超声波提取工艺

邢雅丽1,毕良武1,2*,赵振东1,2,夏田娟1   

  1. 1 中国林业科学研究院林产化学工业研究所 生物质化学利用国家工程实验室 国家林业局林产化学工程重点开放性实验室;江苏省生物质能源与材料重点实验室,南京 210042;2 中国林业科学研究院林业新技术研究所,北京 100091
  • 出版日期:2015-02-15 发布日期:2015-02-15

Optimization of Ultrasonic Extraction of Ursolic Acid from Paulownia elongata Leaves by Response Surface Methodology

XING Ya-li1, BI Liang-wu1,2*, ZHAO Zhen-dong1,2, XIA Tian-juan1   

  • Online:2015-02-15 Published:2015-02-15

摘要: 为探讨泡桐叶中熊果酸的超声波提取工艺,通过中心复合设计-响应面法研究乙醇浓度(X1)、液固比(X2)、超声波提取时间(X3)对泡桐叶中熊果酸提取得率的影响。结果表明,各因素对熊果酸得率的影响顺序为乙醇浓度(X1)>超声波提取时间(X3)>液固比(X2);超声波辅助提取泡桐叶中熊果酸的最优工艺条件为:乙醇浓度89%,液固比31 mL/g,超声时间37 min;在此条件下,熊果酸得率为14.80 mg/g,与预测值相近,二次回归模型预测性良好。

关键词: 中心复合设计, 泡桐叶, 超声波提取, 熊果酸

Abstract: In order to investigate ultrasonic extraction technology of ursolic acid from Paulownia elongate leaves,central composite design coupled with response surface analysis was adopted to study the effects of ethanol concentration (X1), ratio of liquid to solid (X2) and ultrasonic time (X3) on the extraction yield of ursolic acid.The results showed that the effects of ultrasonic factors on the extraction yield of ursolic acid from P.elongate leaves were in the following order:ethanol concentration (X1) > ultrasonic time (X3) > ratio of liquid to solid (X2),and the optimal extraction conditions were as follows:89% ethanol solution as extraction solution,30 mL/g as the ratio of liquid to solid,37 min as ultrasonic time.Under the optimal conditions,the extraction yield of ursolic acid reached 14.80 mg/g,which was close to the predicted response value.Hence,the quadratic regression model can be used to predict the ultrasonic extraction conditions of ursolic acid from P.elongate leaves.

Key words: central composite design, Paulownia elongate leaves, ultrasonic extraction, ursolic acid

中图分类号: 

R284.2