Journal
MEAT SCIENCE
Volume 91, Issue 3, Pages 306-311Publisher
ELSEVIER SCI LTD
DOI: 10.1016/j.meatsci.2012.02.008
Keywords
Dry-cured ham; Antioxidant; Antihypertensive; Bioactive peptide
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Funding
- KAKENHI from Japan Society for the Promotion of Science [21380167]
- FPI from Spanish Ministry of Science and Innovation
- Spanish Ministry of Science and Innovation [AGL2007-65379-C02-01, AGL2010-16305]
- FEDER
- Grants-in-Aid for Scientific Research [21380167] Funding Source: KAKEN
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This study examined the antihypertensive and antioxidant activities of water soluble fractions of a Spanish dry-cured ham extract. Antihypertensive activity of a fractionated peptide extract, by size-exclusion chromatography was determined by measuring changes in systolic blood pressure of spontaneously hypertensive rats after oral administration. Every sample exhibited antihypertensive activity, pooled fractions corresponding to 1700 Da or lower were the most antihypertensive with a decrease of 38.38 mm Hg in systolic blood pressure. In vitro experiments revealed marked in vitro angiotensin I-converting enzyme inhibitory activity in fractions corresponding to these elution volumes. Some of the fractions exhibited great 1,1-diphenyl-2-picrylhydrazyl radical-scavenging activity, ranging from 39% to 92% as well as superoxide ion extinguishing ability with values ranging from 41.67% to 50.27% of the antioxidant activity, suggesting the presence of peptides with antioxidant activity. These findings suggest that Spanish dry-cured ham contains peptides with antioxidant and antihypertensive activities. (C) 2012 Elsevier Ltd. All rights reserved.
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