响应曲面法优化微波辅助提取柿叶总黄酮的工艺

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。

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

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．