A Study of Ultrasonic-assisted Extraction of Flavonoids from Carex
The study aimed at optimization of the technology for extraction of total flavonoids from Carex by means of uhrasonic-assisted technique .The orthogonal design was used to optimize the extracting condition . The results showed that the order of factors that had influence on the amount of total flavonoids was :ultrasonic power>ethanol concentration>ratio of solid to liquid>extraction time .Under the conditions of the experiment , the highest extraction amount of carex flavonoids was 18.9 mg/g,the optimum conditions for extraction of fla-vonoids from Carex were 162 W of ultrasonic power ,25 min of extraction time,material-liquid ratio 1∶60,and 70%of ethanol concentration .
国家科技期刊平台
NSTL
万方数据
维普
