Document Detail

Conjugated linoleic acid in processed cheeses during the manufacturing stages.
MedLine Citation:
PMID:  15796612     Owner:  NLM     Status:  MEDLINE    
Conjugated linoleic acid (CLA) is a naturally occurring micronutrient in milk fat and dairy products consisting of a group of geometric and positional isomers. The purpose of this study was to assess the level and type of CLA isomers found in two commercial processed cheeses (portions and slices) as well as to monitor their evolution during the different manufacturing stages. Total CLA concentrations ranged from 7.5 to 7.9 mg/g of fat, and rumenic acid (cis-9,trans-11 C18:2), the isomer responsible for the biological functions, represented >80% of total CLA. trans-11,cis-13 and trans-11,trans-13 were, with approximately 4% each, the second main CLA isomers. trans-trans isomers accounted for <10% of total CLA. The processing parameters used in this research had negligible effects on the CLA content of processed cheese and did not modify the isomer profile in these dairy products, thereby confirming the stability of rumenic acid during manufacturing.
Pilar Luna; Miguel Angel de la Fuente; Manuela Juárez
Publication Detail:
Type:  Journal Article; Research Support, Non-U.S. Gov't    
Journal Detail:
Title:  Journal of agricultural and food chemistry     Volume:  53     ISSN:  0021-8561     ISO Abbreviation:  J. Agric. Food Chem.     Publication Date:  2005 Apr 
Date Detail:
Created Date:  2005-03-30     Completed Date:  2005-05-18     Revised Date:  2006-11-15    
Medline Journal Info:
Nlm Unique ID:  0374755     Medline TA:  J Agric Food Chem     Country:  United States    
Other Details:
Languages:  eng     Pagination:  2690-5     Citation Subset:  IM    
Instituto del Frío (CSIC), José Antonio Novais 10, Ciudad Universitaria s/n, 28040 Madrid, Spain.
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MeSH Terms
Cheese / analysis*
Drug Stability
Food Handling*
Gas Chromatography-Mass Spectrometry
Linoleic Acids, Conjugated / analysis*
Reg. No./Substance:
0/Linoleic Acids, Conjugated; 1839-11-8/9,11-linoleic acid

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