生物降解材料——玉米醇溶蛋白提取工艺的优化研究  

Optimization of Extracting Zein from Corn Gluten Meal

作　　者：段纯明[1] 董海洲[1] 侯汉学[1] 王强[1] 

机构地区：[1]山东农业大学食品科学与工程学院,山东泰安271018

出　　处：《包装与食品机械》2008年第3期1-6,共6页Packaging and Food Machinery

基　　金：国家高技术研究发展计划(863计划)重点项目(No.2007AA100407);山东省泰安市大学生科技创新行动计划项目(No.2006D1040)。

摘　　要：玉米醇溶蛋白膜是一种绿色包装,它具有良好的阻气性、阻油性、保香性、防湿性和防紫外线性。可食性及生物降解薄膜或包装材料的制造能增加它的商业价值,使其在食品、化工、医药和生物降解包装材料等方面有着诱人的应用前景。本研究从玉米蛋白粉中提取醇溶蛋白,并建立了玉米醇溶蛋白提取量的快速检测方法,在单因素的基础上采用中心组合设计方法,确定了玉米醇溶蛋白的最佳提取工艺条件:乙醇浓度80%,提取温度57.9℃,液料比(ml/g)9.25,浸提时间122min。Zein film is a green packing material, it possesses many functional properties, such as gas-resisting, oil-resisting, fragrance-holding, humidity-preventing and ultraviolet radiation-preventing. The manufacture of edible/ biodegradable films or coatings can potentially add value to zein. Applications of zein in special food, pharmaceutical and biodegradable materials have a potential prospect. The process of extracting zein from CGM was studied.The results showed that the rate of first extraction was 89.96%.The factors effective for extracting zein were investigated and optimized by using central composite design and SAS 9.0 software.The optimum parameters were addition of 80% ethanol solution temperature 57.9℃ ,time 122min, ratio of anhydrous ethyl to CGM as 9.25.

关 键 词：玉米蛋白粉 玉米醇溶蛋白 提取 中心组合设计 

分 类 号：TS211.2[轻工技术与工程—粮食、油脂及植物蛋白工程]