Patent ID: 10501509

Abstract:
The present invention discloses a method of preparing a functional peptide from a germinated bean, including the steps of: germinating a bean until a sprout length is about 0.5-1.0 cm; adding water to the obtained germinated bean, and then blending and crushing the germinated bean; adjusting the obtained slurry to a pH value between 6.5-8.0, and then adding neutral protease, papain and compound flavor protease to perform enzymatic reaction under stirring condition, wherein an enzymatic reaction solution is obtained including the functional peptide; subjecting the enzymatic reaction solution to ultrafiltration using an ultrafiltration membrane; keeping the ultrafiltrated enzymatic reaction solution at a temperature between 70-80° C. or using ozonated water at a concentration between 20-25 mg/L thereby avoiding decomposition by microorganisms; and performing spray drying to obtain the functional peptide.