【摘要】 采用超声提取法提取黄酮,单因素试验的黄芪黄酮最佳提取工艺条件为:在颗粒细度0.075~0.25mm之间,超声20min,料液比达到1∶15,乙醇浓度为80%时,黄芪黄酮的提取含量达到5.88%.利用超声提取黄芪黄酮可缩短提取时间、提高提取效果.更多还原

【Abstract】 This paper is mainly about the ultrasonic assisted extraction of flavonoids. The single- factor experiment showed that the optimal condition for the extraction of astragalus flavonoids is as follows: when patticle fineness is 0. 075 ~ 0. 25 nm,ultrasonic time is 20 min,feed ration is 1: 15( vol),and the concentration of ethanol is 80%,the extraction content of astragalus flavonoids reaches 5. 88%. Ultrasonic assisted extraction of astragalus flavonoids can shorten the extraction time and improve the extraction effect.更多还原