HE Wei-qiang,CHEN Zhao-gui,GAO Xuan,et al.Optimization of Ultrasound-assisted Extraction of Total Flavonoids from Indocalmus Leaves[J].HEILONGJIANG AGRICULTURAL SCIENCES,2016,(11):131-135.[doi:10.11942/j.issn1002-2767.2016.11.0131]
响应面法优化箬叶总黄酮的超声提取工艺
- Title:
- Optimization of Ultrasound-assisted Extraction of Total Flavonoids from Indocalmus Leaves
- 文章编号:
- 11-0131-05
- 分类号:
- S795.9
- 文献标志码:
- A
- 摘要:
- 为了优化箬叶黄酮的提取工艺,在乙醇体积分数、液料比、提取时间和超声功率4个单因素试验的基础上,采用响应面法优化箬叶总黄酮的提取工艺,考察各因素的影响效应及其交互作用。结果表明:确定最佳提取工艺条件为液料比 50∶1,乙醇体积分数76%,提取时间80 min,超声功率234 W,提取2次。采用此工艺条件,箬叶总黄酮得率预测值为2.052%,验证值为2.017%。回归方程的预测值与验证值的相对误差为1.71%,该回归方程与实际情况拟合良好。
- Abstract:
- In order to optimize flavonoids extraction process from indocalmus leaves,based on single factor test,response surface methodology was used to explore the factors of ethanol concentration,liquid-material ratio,extraction time and ultrasonic power as well as their cross-interactions on extraction rate of flavonoids. Based on the results of response surface methodology,the optimum extraction conditions was ascertained as follows: liquid-material ration was 50∶1,ethanol concentration was 76%,extraction time was 80 min and ultrasonic power was 234 W,extraction twice.Under the optimum extraction condition,the predicted extraction rate of flavonoids was 2.052% and the actual extraction rate was 2.017%. The experimental values predicted from the regression equation within a relative error of 1.71%,indicating a good fitness.
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备注/Memo
收稿日期:2016-07-16