微波法提取玉米醇溶蛋白的工艺研究  

Technology study on extraction of corn-zain by microwave method

作　　者：张媛媛[1] 

机构地区：[1]沈阳市粮油食品科学研究所,沈阳110025

出　　处：《粮食与食品工业》2017年第2期37-39,42,共4页Cereal & Food Industry

摘　　要：以玉米黄粉为原料,采用微波法提取玉米醇溶蛋白,研究结果表明,微波提取玉米醇溶蛋白的最佳工艺条件为:料液比1∶15,乙醇浓度为80%,原料目数40目,pH 4.5,波功率为450 W,微波时间为间歇5次150 s,提取率为65.1%。通过正交试验发现,影响提取效果的因素主次顺序为微波功率>乙醇浓度>提取时间。采用微波法提取玉米醇溶蛋白,可以有效地缩短提取时间,提高提取效率。The microwave method was used to extract zain from corn gluten meal. Results show that the optimum extraction conditions of zain are as follows, solid - liquid ratio 1 ： 10, ethanol concentration 80%, mesh size 40, pH 4.5, microwave power 450 W, intermittent microwave treatment 5 times of 150 s, and extraction rate 65.1%. Through orthogonal experiment, the effects of extraction factors are microwave power〉ethanol concentration〉irradiation dura- tion. The extraction of zain from corn gluten meal by microwave method can effectively shorten the extraction time and improve the efficiency.

关 键 词：微波 玉米醇溶蛋白 提取 

分 类 号：TS201[轻工技术与工程—食品科学]