PEPTIDE COMPOUND INHIBITING DIPEPTIDYL PEPTIDASE-IV (DPPIV), COMPOSITION CONTAINING SAME, AND METHOD FOR PRODUCING SAME

摘要

According to the present invention, a peptide compound having an activity of inhibiting dipeptidyl peptidase-IV (DPPIV), said peptide compound being capable of contributing to the prevention of the onset of the pathologic symptom and progress thereof in diabetic and pre-diabetic patients, or a composition containing the same can be provided by a simple method using fish milt, which is safe as evidenced by the fact that milt has a long history as a food, as a starting material. In the present invention, a peptide compound having an activity of inhibiting DPPIV, which is obtained in a hydrolyzate of a fish milt protein source, is used as an active ingredient of a composition for inhibiting DPPIV.