高米蛋白含量粉末油脂的制备研究  

Study on Preparation of Powered Oil with High Rice Protein Content

作　　者：任东东[1] 郑为完[1] 李春莉[1] 林红辉[1] 杨静[1] 周小娟[1] 

机构地区：[1]南昌大学食品科学与技术国家重点实验室,江西南昌330047

出　　处：《食品科学》2008年第8期323-325,共3页Food Science

基　　金：教育部长江学者和创新团队发展计划项目(IRT0540)

摘　　要：通过正交试验酶法提取米渣蛋白,确定了最佳的提取工艺,所制蛋白粉蛋白质含量为80.1%,得率55.6%,溶解性好;将所得蛋白粉用于制作微胶囊壁材,制备了高蛋白含量粉末油脂,并对产品进行了检测、电镜扫描与评价。结果表明,所制得的粉末油脂蛋白质含量为26.5%、脂肪含量为26.7%、表面油含量为2.5%、包埋率为95.1%。微胶囊表面光滑、且复原乳液无分层、无粒子挂壁现象,各项指标均达到了饲用奶粉的要求。The best process for extracting protein from rice residue with enzyme was determined by orthogonal test. The protein content of obtained protein powder is 80.1%, and the yield rate is 55.6%. Its solubility is good. Then the obtained protein powder was used as microcapsule wall material to prepare powdered oil with high rice protein content. The product was detected, scanned by electron rnicroscope and evaluated. The results showed that the protein content of prepared rnicrocapsule is 26.5%, the fat content 26.7%, the surface oil content 2.5% and the embedded rate 95.1%. The surface of the microcapsule is smooth, no layer phenomenon, as well as no particles being linked to the wall. The indexes meet the qualification of powdered milk for feeding.

关 键 词：米渣 酶水解 蛋白质 微胶囊壁材 

分 类 号：Q512.4[生物学—生物化学]