Document Detail


At line prediction of PUFA and biohydrogenation intermediates in perirenal and subcutaneous fat from cattle fed sunflower or flaxseed by near infrared spectroscopy.
MedLine Citation:
PMID:  23360682     Owner:  NLM     Status:  Publisher    
Abstract/OtherAbstract:
NIRS potential to estimate the proportion of PUFA and their biohydrogenation products in adipose tissues from cattle fed sunflower or flaxseed was tested. Immediately after skinning, perirenal and subcutaneous fat samples from 63 steers were collected, scanned intact at 37°C and 33°C, respectively, over a NIR spectral range from 400 to 2498nm using benchtop equipment and then analyzed for fatty acid composition. NIRS calibrations in perirenal fat showed high predictability for total and major omega-6 and omega-3, conjugated linolenic acids, t,t-conjugated linoleic acids (CLA), non-CLA dienes and trans-monounsaturated fatty acids, with R(2) (RMSECV, %) of 0.88-0.89 (0.16-0.20), 0.89-0.91 (0.07-0.08), 0.86-0.89 (0.01-0.09), 0.82 (0.07), 0.89 (0.46) and 0.86-0.88 (0.87-1.29), respectively. NIRS predictions in subcutaneous fat were less reliable, probably due to lower fatty acid variability. The results show NIRS to be a useful technique for the early, fast and relatively inexpensive estimation of proportions of fatty acids with potential human health effects in cattle perirenal fat.
Authors:
N Prieto; M E R Dugan; O López-Campos; J L Aalhus; B Uttaro
Publication Detail:
Type:  JOURNAL ARTICLE     Date:  2013-1-8
Journal Detail:
Title:  Meat science     Volume:  94     ISSN:  1873-4138     ISO Abbreviation:  Meat Sci.     Publication Date:  2013 Jan 
Date Detail:
Created Date:  2013-1-30     Completed Date:  -     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  101160862     Medline TA:  Meat Sci     Country:  -    
Other Details:
Languages:  ENG     Pagination:  27-33     Citation Subset:  -    
Copyright Information:
Copyright © 2012 Elsevier Ltd. All rights reserved.
Affiliation:
Instituto de Ganadería de Montaña (Consejo Superior de Investigaciones Científicas, Universidad de León), Finca Marzanas, E-24346 Grulleros, León, Spain. Electronic address: nuria.prieto@eae.csic.es.
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