甘薯叶黄酮微波提取工艺的响应面法优化  

Optimization of Microwave-Assisted Extraction Technology of Flavonoids from Ipomoea batatas Leaves by Response Surface Methodology

作　　者：韦学丰[1,2] 罗静[1] 

机构地区：[1]贺州学院化学与生物工程学院,广西贺州542899 [2]广西师范大学化学化工学院,广西桂林541004

出　　处：《湖北农业科学》2013年第6期1391-1394,1400,共5页Hubei Agricultural Sciences

基　　金：广西教育厅资助项目(200103YB142);贺州学院重点学科建设项目(2011ZDXK02);2012年贺州学院科研项目(2012PYZK13)

摘　　要：用响应面法优化甘薯(Ipomoea batatas)叶黄酮的微波提取工艺,研究了微波功率、微波时间、乙醇体积分数、液固比4个因素对黄酮提取率的影响,并采用Box-Behnken设计对最佳提取工艺进行了优化。结果表明,最佳工艺条件为微波功率200 W、微波时间4 min、乙醇体积分数50%、液固比43∶1(V/m,mL∶g),在此条件下甘薯叶黄酮的提取率为8.082 7%,与预测值8.314 2%基本吻合。Response surface analysis was applied to optimize the microwave-assisted extraction conditions of flavonoids from Ipomoea batatas Lam leaves.The effects of microwave power,microwave time,ethanol volume fraction,liquid to solid ratio on the extraction yield of flavonoids were studied.And the extraction process was optimized by Box-Behnken design.The results showed that the optimum extraction conditions were microwave power,200 W;microwave time,4 min;volume fraction of ethanol,50%;and liquid to solid ratio 43∶1(V/m,mL∶g).Under these conditions,the extraction yield of flavonoids of I.batatas leaves was 8.082 7%,which was accord with the predicted value(8.314 2%).

关 键 词：甘薯(Ipomoea batatas)叶 黄酮 微波 响应面法 

分 类 号：S[农业科学]