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J Biosci Bioeng. 2003;96(5):496-9.

Angiotensin I-converting enzyme inhibitory activity and insulin secretion stimulative activity of fermented fish sauce.

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1
Institute for Biological Resources and Functions, National Institute of Advanced Industrial Science and Technology, AIST Tsukuba Central 6, 1-1-1 Higashi, Tsukuba, Ibaraki 305-8566, Japan. ichimura@ni.aist.go.jp

Abstract

Angiotensin I-converting enzyme (ACE) inhibitory peptides, Ala-Pro, Lys-Pro, and Arg-Pro, were isolated from fermented fish sauce. Five other proline-containing dipeptides having weak ACE inhibitory activity were also isolated from the fermented fish sauce. Orally administered Lys-Pro showed a tendency to lower the blood pressure of spontaneously hypertensive rats. As fermented anchovy sauce also stimulated insulin secretion by cultured RINm5F insulinoma cells, the sauce may be useful as a source of biologically active substances.

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