Technology for production of antioxidant peptides from apricot kernel meal by enzymolysis

In order to optimize enzymolysis conditions for production of antioxidant peptides from apricot kernel meal,the effect of operating conditions,such as enzyme dosage,substrate concentration,temperature and p H value,were analyzed by response surface methodology. Reducing power was chosen as the response value and optimum conditions were as follows: enzyme dosage 6725 U/g,substrate concentration 3%,temperature 60℃ and p H8.28.Under such conditions,reducing power of enzymatic hydrolysates was 0.743,which was well matched with the predicted yield.Apricot kernel meal antioxidant peptide prepared with these enzymatic hydrolysis technological parameters presented strong antioxidant activity and it contained higher antioxidant amino acids.