High resolution 13C NMR spectroscopy of rendered animal fats: degree of saturation of fatty acid chains and position on glycerol

Summary This work describes the application of high resolution 13C nuclear magnetic response (NMR) to the study of fatty acid composition in animal fats. It allows both the proportions of saturated, mono‐ and polyunsaturated fatty acid chains and the positional isomerism on glycerol to be determined...

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Bibliographic Details
Published in:International journal of food science & technology 1990-08, Vol.25 (4), p.399-408
Main Authors: Bonnet, M, Denoyer, C, Renou, J.P
Format: Article
Language:English
Subjects:
animal fats and oils
Biological and medical sciences
food composition
Food industries
Fundamental and applied biological sciences. Psychology
glycerol
Life Sciences
Meat and meat product industries
monounsaturated fatty acids
nuclear magnetic resonance spectroscopy
polyunsaturated fatty acids
quantitative analysis
Quantitative triglyceride isomer analysis
saturated fatty acids
spectroscopy
triacylglycerols
unsaturated fat analysis
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Summary:Summary This work describes the application of high resolution 13C nuclear magnetic response (NMR) to the study of fatty acid composition in animal fats. It allows both the proportions of saturated, mono‐ and polyunsaturated fatty acid chains and the positional isomerism on glycerol to be determined. Olefinic carbon shifts gave quantitative information on the distribution of saturated, mono‐ and polyunsaturated fatty acid chains in animal fat triglycerides. Carbonyl carbon shifts gave information about the degree of saturation of fatty acid chains and their positions on the glycerol. The NMR values agree with the results from gas chromatographic analysis.
ISSN:0950-5423
1365-2621
DOI:10.1111/j.1365-2621.1990.tb01097.x