中药茯苓中黄酮的提取及响应面分析

Extraction and response surface analysis of flavonoids from traditional Chinese medicine of Poria

以中药茯苓为原材料,采用超声波提取法提取其中的黄酮类化合物,通过响应面优化黄酮的提取条件,最终得到茯苓中黄酮类化合物的最佳提取条件为:在温度为50℃、超声功率400 W时,选取超声时间20 min,料液比为1:50(g/mL),乙醇体积分数为80%,此条件下得到黄酮类化合物提取率最高为0.2599%。

The traditional Chinese medicine Poriais was used as the raw material to extract the flavonoids by using the ultrasonic extraction method.The extraction condition was optimized by the response surface.The best extraction with an extraction rate up to 0.2599%occurs at the temperature of 50℃,the ultrasonic power of 400 W,the ultrasonic time of 20 min,the ratio of material to liquid of 1:50(g/mL),and the ethanol concentration of 80%.