Patent ID: 8501685

Claim:
A peptide product for promoting secretion of cholecystokinin (CCK) prepared by a process comprising: (a) mixing a soybean residue with water; (b) hydrolyzing the mixture obtained in step (a) with a protease at a suitable temperature; (c) making the protease in the hydrolysate obtained in step (b) inactive; and (d) separating the liquid from the solid of the mixture of step (c) and collecting the liquid so as to obtain the peptide product, wherein the soybean residue is obtained by mixing defatted soybean powder with water, adding Aspergillus sojae to the mixture to make it ferment and hydrolyze, and removing the liquid from the fermented and hydrolyzed mixture; and wherein the peptide product comprises the peptides of SEQ ID NOs: 1 to 43.