响应面法优化甘薯叶SOD的提取工艺  

Optimization of Extraction Technology of the Sweet Potato Leaves SOD by Response Surface Methodology

作　　者：潘明[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：《四川理工学院学报（自然科学版）》2012年第2期5-7,共3页Journal of Sichuan University of Science & Engineering(Natural Science Edition)

摘　　要：采用Design-Expert软件的中心组合设计方法设计响应面试验,优化甘薯叶中SOD提取工艺条件,建立了数学模型,得到了最优的提取工艺条件为打浆时间2.4 min、液固比3.6∶1、pH 8.0,在此条件下,SOD的活性为332.64 U/g鲜重,与模型预测值350.24 U/g鲜重的比较,误差为5.03%。On the basis of the previous results,response surface design is adopted by the Design-expert software according to the central composite design principle for studying the extracting condition of SOD in sweet potato leaves.The optimal extracting conditions are： beating time 2.4 min and liquid-to-solid ratio 3.6∶1 and pH 8.0.Under these conditions,the yield of SOD is 332.64 U/g and the model prediction is 350.24 U/g,so the error is 5.03%.

关 键 词：甘薯叶 SOD 响应面法 

分 类 号：TS201[轻工技术与工程—食品科学]