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    J Pept Sci. 2006 Aug;12(8):509-14.

    Novel angiotensin I-converting enzyme inhibitory peptides isolated from Alcalase hydrolysate of mung bean protein.

    Source

    College of Animal Science and Technology, Jiangxi Agricultural University, Nanchang, Jiangxi 330045, P.R. China. liguanh@163.com

    Abstract

    Mung bean protein isolates were hydrolyzed for 2 h by Alcalase. The generated hydrolysate showed angiotensin I-converting enzyme (ACE) inhibitory activity with the IC(50) 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-Leu-Pro-Ala-Gly-Thr-Leu-Phe with the IC(50) values of 26.5 microM, 82.4 microM and 13.4 microM, respectively.

    Copyright (c) 2006 European Peptide Society and John Wiley & Sons, Ltd.

    PMID:
    16680798
    [PubMed - indexed for MEDLINE]

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