Optimum conditions of enzymatic hydrolysis of rice residue protein by alkaline protease

Rice dreg is the quality of protein resources.This by-product from rice residue as raw material starch sugar enterprise,degree of hydrolysis and foaming index for evaluation,of enzymatic hydrolysis of rice residue protein by alkaline protease,first examine the enzyme adds volume,pH,substrate concentration,and other factors influence on the degree of hydrolysis of rice residue protein,and then came to the best enzymatic hydrolysis by response surface test conditions.The results show that the optimal conditions enzyme solution is substrate concentration 6%,enzyme solution time 90 min,add enzyme quantity 2%,pH 8.5,enzyme solution temperature 55 ℃,the conditions under which get enzyme solution liquid foaming ability high.