Repository logo
 
Publication

Effect of slaughter season and muscle type on the fatty acid composition, including conjugated linoleic acid isomers, and nutritional value of intramuscular fat in organic beef

2012-04-03Journal article Open access
Simple item page
dc.contributor.authorPestana, José M
dc.contributor.authorCosta, Ana SH
dc.contributor.authorMartins, Susana V
dc.contributor.authorAlfaia, Cristina M
dc.contributor.authorAlves, Susana P
dc.contributor.authorLopes, Paula A
dc.contributor.authorBessa, Rui JB
dc.contributor.authorPrates, José AM
dc.date.accessioned2025-10-28T11:43:53Z
dc.date.available2025-10-28T11:43:53Z
dc.date.issued2012-04-03
dc.description.abstractBACKGROUND: Consumer awareness regarding the intake of beef of organic origin is strongly associated with the beneficial outcomes to human health, the environment and animal welfare. In this paper the effects of slaughter season and muscle type on the fatty acid composition, conjugated linoleic acid (CLA) isomeric profile, total cholesterol, α‐tocopherol and β‐carotene contents and nutritional quality of intramuscular fat in organic beef (n = 30) are reported for the first time. RESULTS: Organic beef showed a very low total lipid content, with seasonal changes in the levels of some fatty acids, CLA isomers, n‐6/n‐3 polyunsaturated fatty acid (PUFA) ratio, total cholesterol and β‐carotene. In addition, differences between longissimus lumborum (relatively red) and semitendinosus (relatively white) muscles were found for many fatty acids, specific CLA contents, many CLA isomers and both PUFA/saturated fatty acid (SFA) and n‐6/n‐3 ratios. However, in spite of the seasonal and carcass variations, all organic meats analysed had values of beef similar to pasture‐fed cattle. CONCLUSION: From a nutritional perspective, organic meat from both slaughter seasons seems to have high CLA contents, PUFA/SFA and n‐6/n‐3 indices within the recommended values for the human diet. The data indicate that intramuscular fat in organic meat has a high nutritional value throughout the year. Copyright © 2012 Society of Chemical Industry.eng
dc.description.sponsorshipampling assistance (Dr Humberto Rocha, Pasto Real, Lisbon, Portugal), financial support from Fundação para a Ciência e a Tecnologia (FCT, Lisbon, Portugal; grant PTDV/CVT/2006/66114) and individual fellowships to JM Pestana (SFRH/PROTEC/2009/50138), ASH Costa (SFRH/BD/2009/610689), SV Martins (SFRH/BPD/2009/63019) and SP Alves (SFRH/BD/2007/37793) are acknowledged. PA Lopes is a researcher from the programme ‘Ciência 2008’ of FCT.
dc.identifier.citationPestana, J. M., Costa, A. S., Martins, S. V., Alfaia, C. M., Alves, S. P., Lopes, P. A., ... & Prates, J. A. (2012). Effect of slaughter season and muscle type on the fatty acid composition, including conjugated linoleic acid isomers, and nutritional value of intramuscular fat in organic beef. Journal of the Science of Food and Agriculture, 92(12), 2428-2435.
dc.identifier.doi10.1002/jsfa.5648
dc.identifier.issn0022-5142
dc.identifier.issn1097-0010
dc.identifier.urihttp://hdl.handle.net/10400.8/14406
dc.language.isoeng
dc.peerreviewedyes
dc.publisherWiley
dc.relation.hasversionhttps://scijournals.onlinelibrary.wiley.com/doi/10.1002/jsfa.5648
dc.relation.ispartofJournal of the Science of Food and Agriculture
dc.rights.urihttp://creativecommons.org/licenses/by-nc-nd/4.0/
dc.titleEffect of slaughter season and muscle type on the fatty acid composition, including conjugated linoleic acid isomers, and nutritional value of intramuscular fat in organic beefeng
dc.typejournal article
dspace.entity.typePublication
oaire.citation.endPage2435
oaire.citation.issue12
oaire.citation.startPage2428
oaire.citation.titleJournal of the Science of Food and Agriculture
oaire.citation.volume92
oaire.versionhttp://purl.org/coar/version/c_970fb48d4fbd8a85
person.familyNamePestana Assunção
person.givenNameJosé Miguel
person.identifier.ciencia-idCF1B-1CC6-8B47
person.identifier.orcid0000-0002-3772-8877
person.identifier.scopus-author-id18635477600
relation.isAuthorOfPublication5603c5a5-5a0e-4e52-9437-6920a9ee17e9
relation.isAuthorOfPublication.latestForDiscovery5603c5a5-5a0e-4e52-9437-6920a9ee17e9

Files

Original bundle
Now showing 1 - 1 of 1
Thumbnail Image
Name:
J Sci Food Agric - 2012 - Pestana - Effect of slaughter season and muscle type on the fatty aci.pdf
Size:
126.82 KB
Format:
Adobe Portable Document Format
Download
License bundle
Now showing 1 - 1 of 1
No Thumbnail Available
Name:
license.txt
Size:
1.32 KB
Format:
Item-specific license agreed upon to submission
Description:
Download

Collections

ESTM - Artigos em revistas internacionais