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Occurrence of conjugated linoleic acid isomers in beef
Author(s) -
Fritsche Sonja,
Fritsche Jan
Publication year - 1998
Publication title -
journal of the american oil chemists' society
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.512
H-Index - 117
eISSN - 1558-9331
pISSN - 0003-021X
DOI - 10.1007/s11746-998-0199-0
Subject(s) - conjugated linoleic acid , loin , chemistry , linoleic acid , fatty acid , gas chromatography , food science , chromatography , biochemistry
The amounts of Δ9,Δ11‐conjugated linoleic acid (CLA) isomers were determined in loin‐associated fat samples of bulls ( n =6) and steers ( n =7) by capillary gas chromatography of fatty acid methyl ester (FAME) derivatives. The main CLA‐isomer—18:2 c 9, t 11—provided approximately 0.76 ± 0.15% and 0.86 ± 0.15% of total FAME in bulls and steers, respectively. No differences ( P >0.05) were observed between the CLA isomer distribution of bulls ( t 9, c 11, 0.026 ± 0.014%; c 9, c 11, 0.015 ± 0.008%; and t 9, t 11, 0.029 ± 0.003%) and steers ( t 9, c 11, 0.027 ± 0.014%; c 9, c 11, 0.015 ± 0.005%; and t 9, t 11, 0.030 ± 0.007%).