Utilization of Corn Processing by-products-corn Bran and Technology

With corn processing by-products-corn bran as raw material,the process of making dietary fiber powder was studied.The experiment was designed to get the optimun conditions of removing phytic acid,starch and protein.The results showed that: the optimum conditions to remove phytic acid were: the reaction temperature 60℃,time 4h,pH 5.0;removal starch: liquid ratio 1:15,boiling temperature 121℃,boiling time 20min;removal protein: the amount of protease enzyme 7U/g,hydrolysis time 4h,hydrolysis pH7.0,substrate concentration 1:14.The total dietary fiber content of bran dietary fiber powder made was up to 95.8%.