超声辅助提取红枣中芦丁的工艺研究

Researches on Ultrasonic-assisted Technology of Extracting Rutin from Zizyphus Jujube

在超声辅助下提取红枣中的芦丁,以芦丁提取率为评价指标考察了超声提取温度、提取时间和料液比等因素对芦丁得率的影响。正交试验结果表明最佳提取工艺:用体积分数95%的乙醇为溶剂时,超声提取温度60℃,时间20 min,料液比1:20时,得率最高24.2%。

Ultrasonic-assisted method was adopted to extract rutin from Zizyphus jujube, the effects of ultrasonic treatment temperature, time and solid to liquid ratio on the yield ofrutin were studied. According to orthogonal tests, the optimum extraction condition was as follows： volume fraction of ethanol 80%, extraction temperature 60 ℃, ultrasonic treatment time 40 min, solid to liquid ratio 1：20 （g/g）, under which the yield ofrutin was 24.2%.