Olive oil characterization and classification by 13C NMR with a polarization transfer technique: A comparison with gas chromatography and 1H NMR
Copyright policy )Olive oil characterization and classification by 13C NMR with a polarization transfer technique: A comparison with gas chromatography and 1H NMR
In a previous work, we optimized and used a fast adiabatic 13C-INEPT (Insensitive Nuclei Enhanced by Polarization Transfer) experiment for the isotopomic analysis of olive oil samples, which allowed us quantifying individual fatty acids within triacylglycerols through multivariate linear regression models. The goal of this study was to validate these models and to evaluate the power of 13C-INEPT in the authentication of olive oils relative to gas chromatography (GC) and 1H NMR. In this respect, a new set of olive oil samples was analyzed by these three techniques. The analytical variables thus obtained as well as their corresponding long-term repeatability were compared. As a result, the reliability of the fatty acid quantification models was proven and the best classification of olive oils according to the altitude of the olive grove and to the morphological aspect (color) of the olives was achieved by means of 13C-INEPT.
- University of Nantes France
- University of Nantes France
- LABORATOIRE DE MATHÉMATIQUES DE REIMS - Université de Reims Champagne Ardenne - France
- Université de Nantes France
- University of Saint Joseph United States
Chromatography, Gas, Proton Magnetic Resonance Spectroscopy, Olea, Olive oil classification, [CHIM]Chemical Sciences, Fatty acids, Isotopic profile, Carbon-13 Magnetic Resonance Spectroscopy, Lebanon, Olive Oil, Triglycerides, Carbon Isotopes, Fatty Acids, Discriminant Analysis, Reproducibility of Results, MESH: Carbon Isotopes / analysis Carbon-13 Magnetic Resonance Spectroscopy / methods* Chromatography, Gas / methods* Discriminant Analysis Fatty Acids / analysis* Fatty Acids / chemistry Food Analysis / methods Lebanon Olea / chemistry Olea / growth & development Olive Oil / analysis* Olive Oil / chemistry Proton Magnetic Resonance Spectroscopy / methods* Reproducibility of Results Triglycerides / chemistry, Polarization transfer, 664, Lipidomics, Triacylglycerols, (13)C NMR, Multivariate linear regression, Food Analysis
Chromatography, Gas, Proton Magnetic Resonance Spectroscopy, Olea, Olive oil classification, [CHIM]Chemical Sciences, Fatty acids, Isotopic profile, Carbon-13 Magnetic Resonance Spectroscopy, Lebanon, Olive Oil, Triglycerides, Carbon Isotopes, Fatty Acids, Discriminant Analysis, Reproducibility of Results, MESH: Carbon Isotopes / analysis Carbon-13 Magnetic Resonance Spectroscopy / methods* Chromatography, Gas / methods* Discriminant Analysis Fatty Acids / analysis* Fatty Acids / chemistry Food Analysis / methods Lebanon Olea / chemistry Olea / growth & development Olive Oil / analysis* Olive Oil / chemistry Proton Magnetic Resonance Spectroscopy / methods* Reproducibility of Results Triglycerides / chemistry, Polarization transfer, 664, Lipidomics, Triacylglycerols, (13)C NMR, Multivariate linear regression, Food Analysis
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