响应面法优化棉籽粕复合氨基酸螯合铁制备工艺  

Optimization of compound amino acid in cottonseed meal chelated Iron(Ⅱ) preparation via response surface methodology

作　　者：廉宜君[1] 汪河滨 肖芙蓉[1] 杨金凤[1] 

机构地区：[1]石河子大学化学化工学院/新疆生产建设兵团化工绿色过程重点实验室-省部共建国家重点实验室培育基地,新疆石河子832003 [2]塔里木农业大学,新疆阿拉尔843300

出　　处：《食品工业科技》2013年第22期200-203,208,共5页Science and Technology of Food Industry

基　　金：新疆兵团化工绿色过程重点实验室开放课题(KF201201);石河子大学"自然科学与技术创新"一般项目(ZRKXYB-09)

摘　　要：采用响应面法优化棉籽粕复合氨基酸与氯化亚铁进行螯合反应的条件,制备复合氨基酸铁螯合物。以pH、复合氨基酸与氯化亚铁质量比、螯合温度为自变量,氨基酸铁螯合率为响应值,利用二次正交旋转组合实验和响应面分析法对制备条件进行优化。结果表明,最佳反应条件为:pH4.30、温度40℃、复合氨基酸∶氯化亚铁质量比3.3∶1(g∶g),在此条件下螯合率为73.76%,与模型的预测值74.06%接近。The optimal chelating conditions for compound amino acid in cottonseed meal and ferrous chloride were investigated by response surface methodology （RSM）. Quadratic orthogonal rotation combination design and response surface methodology were applied the chelated conditions by pH,temperatureand the mass ration of compound amino acid and ferrous chloride as independent variables,while taking the chelated percent as dependent variable in the experiment. The results showed that the optimal reaction conditions were pH 4.30,temperature 40℃,the mass ration of compound amino acid：ferrous chloride 3.3：1 （g：g）, Under these conditions,chelating rate was 73.76%,closed to the predictive value of 74.06%.

关 键 词：响应面 棉籽粕 复合氨基酸 螯合铁 

分 类 号：TS201.2[轻工技术与工程—食品科学]