Document Detail


Effect of dietary n-3 and n-6 PUFA on lipid composition of different tissues of German Holstein bulls and the fate of bioactive fatty acids during processing.
MedLine Citation:
PMID:  20597504     Owner:  NLM     Status:  MEDLINE    
Abstract/OtherAbstract:
The present study investigated the effects of dietary linolenic acid (ALA) versus linoleic acid (LA) on meat quality, fatty acid composition, and stearoyl-CoA desaturase (SCD) activity in longissimus muscle (MLD) and subcutaneous adipose tissue (SAT) of German Holstein bulls and the transfer of beneficial n-3 fatty acids into German corned beef sausages (GCB). Feeding LA- and ALA-enriched diets increased essential fatty acids in MLD and SAT. The ALA-supplemented diet decreased significantly the SCD activity in MLD and SAT, resulting in a reduced relative concentration of oleic acid in muscle. The relative proportion of CLAcis-9,trans-11 analyzed by HPLC was not different between groups in either tissue. GCB were produced by using the lean meat of bulls. Beef products of bulls fed the ALA-supplemented diet were rich in ALA and n-3 LC PUFA. Most importantly, there was no loss of n-3 fatty acids during processing under production conditions. Conclusively, the n-6/n-3 fatty acid ratio was beneficially low.
Authors:
Andrea Herdmann; Jörg Martin; Gerd Nuernberg; Dirk Dannenberger; Karin Nuernberg
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Publication Detail:
Type:  Journal Article; Research Support, Non-U.S. Gov't    
Journal Detail:
Title:  Journal of agricultural and food chemistry     Volume:  58     ISSN:  1520-5118     ISO Abbreviation:  J. Agric. Food Chem.     Publication Date:  2010 Jul 
Date Detail:
Created Date:  2010-07-29     Completed Date:  2010-11-10     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  0374755     Medline TA:  J Agric Food Chem     Country:  United States    
Other Details:
Languages:  eng     Pagination:  8314-21     Citation Subset:  IM    
Affiliation:
Research Unit Muscle Biology and Growth, Leibniz Institute for Farm Animal Biology, 18196 Dummerstorf, Germany.
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MeSH Terms
Descriptor/Qualifier:
Animal Feed / analysis*
Animals
Cattle / metabolism*
Fatty Acids / analysis,  metabolism*
Fatty Acids, Unsaturated / chemistry,  metabolism*
Food Handling
Linoleic Acid / metabolism
Male
Meat Products / analysis*
Muscle, Skeletal / chemistry*,  metabolism
alpha-Linolenic Acid / metabolism
Chemical
Reg. No./Substance:
0/Fatty Acids; 0/Fatty Acids, Unsaturated; 2197-37-7/Linoleic Acid; 463-40-1/alpha-Linolenic Acid

From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine


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