期刊
JOURNAL OF PEPTIDE SCIENCE
卷 12, 期 8, 页码 509-514出版社
WILEY
DOI: 10.1002/psc.758
关键词
angiotensin I-converting enzyme peptides; mung bean protein; antihypertensive effect; spontaneously hypertensive rats; Alcalase
Mung bean protein isolates were hydrolyzed for 2 h by Alcalase. The generated hydrolysate showed angiotensin I-converting enzyme (ACE) inhibitory activity with the IC50 value of 0.64 mg protein/ml. Three kinds of novel ACE inhibitory peptides were isolated from the hydrolysate by Sephadex G- 15 and reverse-phase high performance liquid chromatography (RP-HPLC). These peptides were identified by amino acid composition analysis and matrix assisted-laser desorption/ionization time-of-flight tandem mass spectrometry (MALDI-TOF MS/MS), as Lys-Asp-Tyr-Arg-Leu, Val-Thr-Pro-Ala-Leu-Arg and Lys-LeuPro-Ala-Gly-Thr-Leu-Phe with the IC50 values of 26.5 mu M, 82.4 mu M and 13.4 mu M, respectively. Copyright (c) 2006 European Peptide Society and John Wiley & Sons, Ltd.
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