Abstract
Peptidic fractions which inhibit angiotensin I-converting enzyme (ACE) were separated from peptic digests of soybean by ion exchange chromatography and gel filtration. Further separation of the peptidic fractions by ODS HPLC afforded active peptides, the amino acid sequences of which were identified by Edman's procedure as: Ile-Ala (inhibitory against ACE with an IC50 of 153 μM), Tyr-Leu-Ala-Gly-Asn-Gln (14 μM), Phe-Phe-Leu (37 μM), Ile-Tyr-Leu-Leu (42 μM), and Val-Met-Asp-Lys-Pro-Gln-Gly (39 μM). The antihypertensive activity of the soybean peptides was also investigated. Peptide fractions (2.0 g/kg body weight, oral administration) markedly lowered the blood pressure of spontaneously hypertensive rats (SHRs).
| Original language | English |
|---|---|
| Pages (from-to) | 543-554 |
| Number of pages | 12 |
| Journal | Journal of Food Biochemistry |
| Volume | 26 |
| Issue number | 6 |
| Publication status | Published - Dec 2002 |
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ASJC Scopus subject areas
- Food Science
- Biochemistry, Genetics and Molecular Biology(all)
- Biochemistry
Cite this
Chen, J-R., Okada, T., Muramoto, K., Suetsuna, K., & Yang, S-C. (2002). Identification of angiotensin I-converting enzyme inhibitory peptides derived from the peptic digest of soybean protein. Journal of Food Biochemistry, 26(6), 543-554.