Journal
MEAT SCIENCE
Volume 97, Issue 2, Pages 156-163Publisher
ELSEVIER SCI LTD
DOI: 10.1016/j.meatsci.2014.02.001
Keywords
Fatty acids; Antioxidants; Linseed; Quercetin; TSARS; Meat
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Funding
- Consejeria de Educacion de la Junta de Castilla y Leon [CSI185B11-2]
- JAE-Predoc grant under the programme 'Junta para la Ampliacion de Estudios' (CSIC-European Social Fund)
- Spanish Ministry of Science and Innovation
- University of the Basque Country (UPV-EHU) through the 'Ramon y Cajal' programme [RYC-2011-08593]
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Thirty-two Merino lambs fed barley straw and a concentrate formulated either with palm oil (CTRL group) or with linseed (+ LS group), both alone or supplemented with quercetin (+QCT group or + LS + QCT group) were used to assess the effects of these dietary supplements on meat quality attributes. After being slaughtered, the longissimus thoracis muscles were used to study the fatty acid (FA) profile in detail, whilst longissimus lumborum slices were stored under refrigerated conditions to determine the lipid stability. Linseed increased the content of highly unsaturated n-3 long-chain fatty acid (20:5n-3; 22:5n-3; 22:6n-3). Interestingly, a significant increment of rumenic acid content (9c,11t-18:2) was observed when this seed was administered together with dietary quercetin. Moreover, the feeding of quercetin resulted in a reduction in the proportion of saturated FA and a decrease in lipid peroxidation of meat when the lambs were fed linseed. In conclusion, from both a nutritional and a commercial (shelf-life) point of view, it may be useful to include a source of quercetin when lambs are fed linseed diets. (c) 2014 Elsevier Ltd. All rights reserved.
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