Gas-liquid chromatographic method for analysing complex mixtures of fatty acids including conjugated linoleic acids (cis9transl11 and trans10cis12 isomers) and long-chain (n-3 or n-6) polyunsaturated fatty acids Application to the intramuscular fat of beef meat
The optimisation and validation of a gas-liquid chromatographic (GLC) method using direct saponification with KOH/methanol followed by a derivatization with (trimethylsilyl)diazomethane was carried out trying to overcome all the difficulties posed by the analysis of complex mixtures of fatty acids (...
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Published in | Journal of chromatography Vol. 1110; no. 1-2; pp. 133 - 139 |
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Main Authors | , , , |
Format | Journal Article |
Language | English |
Published |
Amsterdam
Elsevier
31.03.2006
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Subjects | |
Online Access | Get full text |
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Summary: | The optimisation and validation of a gas-liquid chromatographic (GLC) method using direct saponification with KOH/methanol followed by a derivatization with (trimethylsilyl)diazomethane was carried out trying to overcome all the difficulties posed by the analysis of complex mixtures of fatty acids (FAs) in animal fat tissues. The presented method allowed sensitive, selective and simultaneous determination of a wide range of different FAs, including short-chain FAs, branched-chain FAs and conjugated linoleic acid isomers in the same GLC run along with other well known saturated, monounsaturated and polyunsaturated FAs. To demonstrate the feasibility of the procedure, the total FA profile of beef meat was characterised. |
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Bibliography: | ObjectType-Article-1 SourceType-Scholarly Journals-1 ObjectType-Feature-2 content type line 23 |
ISSN: | 0021-9673 |
DOI: | 10.1016/j.chroma.2006.01.049 |