| Long chain n-3 polyunsaturated fatty acid concentration and colour and lipid stability of muscle from heifers offered a ruminally-protected fish oil supplement. | |
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MedLine Citation:
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PMID: 21449556 Owner: NLM Status: Publisher |
Abstract/OtherAbstract:
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Beef heifers (n = 48) were offered, daily, 1.5kg ration that contained 0, 69, 138 and 275g ruminally-protected fish oil (RPFO) fortified with vitamin E (5000 IU/kg). The fatty acid profile of neutral (NL) and polar lipids (PL) of neck muscle were analysed by GC-FID. Minced muscle was displayed in an 80% O2 : 20% CO2 atmosphere under simulated retail display conditions. Muscle α-tocopherol concentrations did not differ. For PL, the proportions of eicosapentaenoic acid (EPA) and docosahexaenoic acid (DHA) increased (P<0.05, linearly and quadratically, respectively). For NL, the proportion of EPA was not affected but DHA increased linearly and quadratically (P<0.05). Supplementation did not affect colour stability of ground beef but lipid oxidation was higher (P<0.001) for 275g RPFO on day 10 of display. In conclusion, supplementation with RPFO increased muscle EPA and DHA with no effect on colour stability while lipid oxidation was increased only at the highest level of supplementation, after prolonged display. |
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Authors:
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Peter Dunne; Jaroslaw Rogalski; Stuart Childs; Frank Joseph Monahan; David Kenny; Aidan P Moloney |
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Publication Detail:
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Type: JOURNAL ARTICLE Date: 2011-3-30 |
Journal Detail:
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Title: Journal of agricultural and food chemistry Volume: - ISSN: 1520-5118 ISO Abbreviation: - Publication Date: 2011 Mar |
Date Detail:
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Created Date: 2011-3-31 Completed Date: - Revised Date: - |
Medline Journal Info:
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Nlm Unique ID: 0374755 Medline TA: J Agric Food Chem Country: - |
Other Details:
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Languages: ENG Pagination: - Citation Subset: - |
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From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine
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