| Lipid oxidation stability of omega-3- and conjugated linoleic acid-enriched sous vide chicken meat. | |
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MedLine Citation:
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PMID: 21248346 Owner: NLM Status: In-Data-Review |
Abstract/OtherAbstract:
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Lipid oxidation is known to occur rather rapidly in cooked chicken meat containing relatively high amounts of polyunsaturated fatty acids. To assess the lipid oxidation stability of sous vide chicken meat enriched with n-3 and conjugated linoleic acid (CLA) fatty acids, 624 Cobb × Ross broilers were raised during a 6-wk feeding period. The birds were fed diets containing CLA (50% cis-9, trans-11 and 50% trans-10, cis-12 isomers), flaxseed oil (FSO), or menhaden fish oil (MFO), each supplemented with 42 or 200 mg/kg of vitamin E (dl-α-tocopheryl acetate). Breast or thigh meat was vacuum-packed, cooked (74°C), cooled in ice water, and stored at 4.4°C for 0, 5, 10, 15, and 30 d. The lipid oxidation development of the meat was estimated by quantification of malonaldehyde (MDA) values, using the 2-thiobarbituric acid reactive substances analysis. Fatty acid, nonheme iron, moisture, and fat analyses were performed as well. Results showed that dietary CLA induced deposition of cis-9, trans-11 and trans-10, cis-12 CLA isomers, increased the proportion of saturated fatty acids, and decreased the proportions of monounsaturated and polyunsaturated fatty acids. Flaxseed oil induced higher deposition of C18:1, C18:2, C18:3, and C20:4 fatty acids, whereas MFO induced higher deposition of n-3 fatty acids, eicosapentaenoic acid (C20:5), and docosahexaenoic acid (C22:6; P < 0.05). Meat lipid oxidation stability was affected by the interaction of either dietary oil or vitamin E with storage day. Lower (P < 0.05) MDA values were found in the CLA treatment than in the MFO and FSO treatments. Lower (P < 0.05) MDA values were detected in meat samples from the 200 mg/kg of vitamin E than in meat samples from the 42 mg/kg of vitamin E. Nonheme iron values did not affect (P > 0.05) lipid oxidation development. In conclusion, dietary CLA, FSO, and MFO influenced the fatty acid composition of chicken muscle and the lipid oxidation stability of meat over the storage time. Supranutritional supplementation of vitamin E enhanced the lipid oxidation stability of sous vide chicken meat. |
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Authors:
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C Narciso-Gaytán; D Shin; A R Sams; J T Keeton; R K Miller; S B Smith; M X Sánchez-Plata |
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Publication Detail:
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Type: Journal Article |
Journal Detail:
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Title: Poultry science Volume: 90 ISSN: 0032-5791 ISO Abbreviation: Poult. Sci. Publication Date: 2011 Feb |
Date Detail:
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Created Date: 2011-01-20 Completed Date: - Revised Date: - |
Medline Journal Info:
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Nlm Unique ID: 0401150 Medline TA: Poult Sci Country: United States |
Other Details:
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Languages: eng Pagination: 473-80 Citation Subset: IM |
Affiliation:
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Colegio de Postgraduados Campus Córdoba, Km. 348 Carr. Fed. Córdoba-Veracruz, Congregación Manuel León, Amatlán de los Reyes, Ver. Apartado Postal 143 Córdoba, Ver. C.P. 94946, Mexico; |
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From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine
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