响应曲面法优化微波辅助提取柿叶总黄酮的工艺

Optimization of microwave-assisted extraction process of total flavonoids from persimmon leaves using response surface methodology

采用响应曲面法优化微波辅助提取柿叶中总黄酮的工艺,以提高柿叶黄酮的提取得率。结果表明:微波辅助提取柿叶总黄酮的最佳工艺为:微波功率422.360 W、提取时间20.970 min、液料比20.660∶1,此时柿叶总黄酮的得率达6.15%。说明响应曲面法是一种很好的优化柿叶黄酮提取工艺的方法。

The primary goal of this research was to improve the ratio of total flavonoids extracted from persimmon leaves. The technique applied was referred to as response surface methodology which is a good experimental design method commonly used in the optimization of extraction technology. The method used in this study was microwave-assisted extraction. The results showed that the optimal extraction conditions of total flavonoids from persimmon leaves were as follows ： microwave power 422. 360 W ; extraction time 20. 970 min, and liquid-solid ratio 20. 660 ： 1. In this case, the extraction rate could reach 6. 15 %. From the experiments, it was concluded that response surface methodology was a good method for improving the ratio of total flavonoids extraction from persimmon leaves.