玉米渣提取玉米醇溶蛋白工艺初探

Study of extracting corn prolamine from corn residue

主要介绍了从玉米渣中提取玉米醇溶蛋白的工艺。从玉米醇溶蛋白不溶于水和无水乙醇,而只溶于60%～95%的醇水溶液中的特殊溶解性出发,利用90%的乙醇溶液,在45～55℃、pH8.0的条件下处理3～4h,可将玉米醇溶蛋白从玉米渣中提取出来。并通过实验确立了各步的工艺条件,在此条件下玉米醇溶蛋白的得率可达80%。

The technique of extracting corn prolamime from corn residue was introduced.Corn prolamine is insoluble in water or in absolute ethyl alcohol,but soluble in 60～90% ethanol.Corn prolamine was extrcted from corn residue with 90% ethanol at 45～55 ℃ and at pH8.0 after corn residue had been treated with 90% ethanol for 3～4 hours.The technique of each step was determined through experiments and the yield of corn prolamine in the experimental condition was 80 percent.