超声波辅助提取甘薯叶中SOD的工艺研究  

Ultrasonic Extraction of SOD from Sweet Potato Leaves

作　　者：潘明[1] 王世宽[1] 谢仁有[1] 洪玉程[1] 

机构地区：[1]四川理工学院生物工程学院,四川自贡643000

出　　处：《现代食品科技》2012年第11期1512-1515,1534,共5页Modern Food Science and Technology

基　　金：四川省教育厅自然科学基金项目(10ZA139)

摘　　要：本文运用超声波细胞破碎仪,对浆液进行超声波处理,并采用Design-Expert软件的中心组合设计方法设计响应面试验,建立了数学模型,通过进行验证实验,得到了最优的提取工艺条件为液固比为28:1、超声时间6 s、次数40次、时间间隔2 s。在此条件下,SOD的活性为359.54 U/g鲜重,与模型预测值的比较误差为1.01%。The slurry was treated by ultrasonic cell disrupter, and the experiment was verified. Response surface design was generated by the Design-Expert software according to the central composite design principle and a mathematical model was set up. The optimal extraction conditions were found as liquid-to-solid ratio of 28：1 and ullrasonic time of 6s and 40 times and lime interval of 2s. Under these conditions, the yield of SOD was 359.54 U/g, and compared with the model prediction, the error was 1.01%.

关 键 词：甘薯叶 SOD 超声波 响应面 

分 类 号：TS255.1[轻工技术与工程—农产品加工及贮藏工程]