| abstract |
The present invention provides a novel in vivo non-degradable peptide which can be expected to be effectively absorbed in vivo and difficult to decompose when administered by oral administration, and to effectively express functions such as a blood pressure lowering effect in vivo. Provided are an ACE inhibitor using a peptide and a medicament or a functional food which can be expected to effectively lower blood pressure in vivo. This in vivo non-degradable peptide is a dipeptide or tripeptide having Pro at the carboxy terminus selected from the group consisting of Ile Pro, Glu Pro, Arg Pro, Gln Pro, Met Pro and Ser Pro Pro. |