超声波提取接骨草花中乌索酸的工艺研究  

Study on ultrasonic-assisted extraction technology for ursolic acid from Sambucus chinensis flowers

作　　者：李爱民[1,2,3] 姚元枝[1,2,3] 陈镇[1] 刘香成[1] 

机构地区：[1]怀化学院生命科学系,湖南怀化418008 [2]民族药用植物资源研究与利用湖南省重点实验室,怀化学院,湖南怀化418008 [3]湘西药用植物与民族植物学湖南省高校重点实验室,怀化学院,湖南怀化418008

出　　处：《食品工业科技》2012年第9期234-237,共4页Science and Technology of Food Industry

基　　金：湖南省教育厅科学研究项目(10C1062);湖南省科技计划项目(2011NK3045)

摘　　要：利用超声波辅助提取法提取接骨草花中乌索酸。通过考察乙醇浓度、固液比、超声波时间对提取乌索酸得率的影响,设计正交实验,得出最佳提取工艺。结果表明各因素对提取乌索酸的影响依次为乙醇浓度>固液比>超声时间。最佳提取工艺是乙醇浓度为80%,固液比为1∶60g/mL,提取时间为45min。在此条件下,乌索酸在盛花期中得率为0.83%,在花蕾期中得率为0.81%。The extraction technology of ursolic acid from Sambucus chinensis flowers was optimized by ultrasonic-assisted extraction.Effects of concentration of ethanol,ratio of raw material to liquid,ultrasonic extraction time were studied by orthogonal experiment methods.The results showed that the effect sequence of three main factors for ursolic acid yield were as follows：ethanol concentration,solid to liquid ratio,ultrasonic extraction time.The optimal extraction conditions were 80% ethanol,solid to liquid ratio 1：60g/mL,ultrasonic extraction time 45min.Ursolic acid yield in open and not open flowers under the optimal ultrasonic extraction condition were 0.83%,0.81% respectively.

关 键 词：接骨草 乌索酸 超声波提取 

分 类 号：TS201.1[轻工技术与工程—食品科学]