| Near infrared reflectance spectroscopy predicts the content of polyunsaturated fatty acids and biohydrogenation products in the subcutaneous fat of beef cows fed flaxseed. | |
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MedLine Citation:
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PMID: 21683533 Owner: NLM Status: Publisher |
Abstract/OtherAbstract:
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This study examined the ability of near infrared reflectance spectroscopy (NIRS) to estimate the concentration of polyunsaturated fatty acids and their biohydrogenation products in the subcutaneous fat of beef cows fed flaxseed. Subcutaneous fat samples at the 12th rib of 62 cows were stored at -80°C, thawed, scanned over a NIR spectral range from 400 to 2498nm at 31°C and 2°C, and subsequently analysed for fatty acid composition. Best NIRS calibrations were with samples at 31°C, showing high predictability for most of the n-3 (R(2): 0.81-0.86; RMSECV: 0.11-1.56mgg(-1) fat) and linolenic acid biohydrogenation products such as conjugated linolenic acids, conjugated linoleic acids (CLA), non-CLA dienes and trans-monounsaturated fatty acids with R(2) (RMSECV(,) mgg(-1) fat) of 0.85-0.85 (0.16-0.37), 0.84-0.90 (0.21-2.58), 0.90 (5.49) and 0.84-0.90 (4.24-8.83), respectively. NIRS could discriminate 100% of subcutaneous fat samples from beef cows fed diets with and without flaxseed. |
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Authors:
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N Prieto; M E R Dugan; O López-Campos; T A McAllister; J L Aalhus; B Uttaro |
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Publication Detail:
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Type: JOURNAL ARTICLE Date: 2011-6-6 |
Journal Detail:
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Title: Meat science Volume: - ISSN: 1873-4138 ISO Abbreviation: - Publication Date: 2011 Jun |
Date Detail:
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Created Date: 2011-6-20 Completed Date: - Revised Date: - |
Medline Journal Info:
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Nlm Unique ID: 101160862 Medline TA: Meat Sci Country: - |
Other Details:
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Languages: ENG Pagination: - Citation Subset: - |
Copyright Information:
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Copyright © 2011 Elsevier Ltd. All rights reserved. |
Affiliation:
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Instituto de Ganadería de Montaña (Consejo Superior de Investigaciones Científicas, Universidad de León), Finca Marzanas, E-24346 Grulleros, León, Spain. |
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From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine
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