大米糟渣碱法提取食用蛋白质的研究  

Study on the extraction of protein from rice dregs in alkalinous condition

作　　者：王亚林[1] 钟方旭[1] 陶兴无[1] 江贤君[1] 

机构地区：[1]武汉工业学院生物与化学工程系,湖北武汉430062

出　　处：《武汉化工学院学报》2001年第3期8-10,共3页Journal of Wuhan Institute of Chemical Technology

基　　金：湖北省教育厅科研计划项目 :( 2 0 0 0 ) 0 2 9

摘　　要：采用碱溶酸沉淀法从大米渣中提取蛋白质 ,通过正交试验研究了提取工艺条件 .确定大米蛋白质的等电点 p H值为 3.9,最佳的碱提条件为 p H值为 1 2 ,温度 4 0℃ ,时间 2小时 ,料液比 1∶ 1 2 .在此条件下蛋白质提取得率为 4 9.9% ,产品蛋白质含量为 71 .1 %Protein for foods was extracted from rice dregs in alkalinous condition. The process conditions of extraction were studied by perpendicular test. The equivalent charge point of rice protein was determined as pH 3.9. The best conditions of extraction were as follows: pH is 12, temperature is 40 ℃, time is 2 h and the ratio of rawmaterial to water is l∶12. In such conditions the ratio of protein gained is 49.9 % and the content of protein is 71.1 %.

关 键 词：大米渣 蛋白质 碱法提取 碱溶酸沉淀法 正交试验 

分 类 号：TQ936[化学工程]