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13 C NMR analysis of the triacylglycerol composition of Greek virgin olive oils
Author(s) -
Mavromoustakos T.,
Zervou M.,
Theodoropoulou E.,
Panagiotopoulos D.,
Bonas G.,
Day M.,
Helmis A.
Publication year - 1997
Publication title -
magnetic resonance in chemistry
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.483
H-Index - 72
eISSN - 1097-458X
pISSN - 0749-1581
DOI - 10.1002/(sici)1097-458x(199712)35:13<s3::aid-omr176>3.0.co;2-e
Subject(s) - chemistry , olive oil , carbon 13 nmr , gas chromatography , linoleic acid , chromatography , composition (language) , oleic acid , nuclear magnetic resonance spectroscopy , organic chemistry , food science , fatty acid , biochemistry , linguistics , philosophy
High‐resolution 13 C NMR spectroscopy was used to study the potential of the method for the quantitative analysis of the most abundant fatty acids in the triacylglycerols of virgin olive oil samples harvested at different geographic areas of Greece. The analysis of the results was compared with data obtained with gas chromatography. Both methods showed results that differed only by 1–2 mol% of the fatty acids. NMR data provided the α/β ratio of oleic and linoleic acids. The results showed a preference for the β‐position in these unsaturated acids. © 1997 John Wiley & Sons, Ltd.