High-throughput authentication of edible oils with benchtop Ultrafast 2D NMR

被引:91
作者
Gouilleux, B. [1 ]
Marchand, J. [1 ,2 ]
Charrier, B. [1 ]
Remaud, G. S. [1 ]
Giraudeau, P. [1 ,3 ]
机构
[1] Univ Nantes, UMR6230, EBSI Team, CEISAM,CNRS, BP 92208,2 Rue Houssiniere, F-44322 Nantes, France
[2] LUNAM Univ, Oniris, Lab Etud Residus & Contaminants Aliments LABERCA, F-44307 Nantes, France
[3] Inst Univ France, 1 Rue Descartes, F-75005 Paris 05, France
关键词
Edible oils; Adulteration; Screening; Benchtop NMR; Low-field NMR; Ultrafast 2D NMR; VIRGIN OLIVE OIL; FATTY-ACID-COMPOSITION; VEGETABLE-OILS; FLUORESCENCE SPECTROSCOPY; H-1-NMR SPECTROSCOPY; SUNFLOWER OIL; ADULTERATION; QUALITY; SPECTROMETER; METABOLOMICS;
D O I
10.1016/j.foodchem.2017.10.016
中图分类号
O69 [应用化学];
学科分类号
081704 ;
摘要
We report the use of an Ultrafast 2D NMR approach applied on a benchtop NMR system (43 MHz) for the authentication of edible oils. Our results demonstrate that a profiling strategy based on fast 2D NMR spectra recorded in 2.4 min is more efficient than the standard 1D experiments to classify oils from different botanical origins, since 1D spectra on the same samples suffer from strong peak overlaps. Six edible oils with different botanical origins (olive, hazelnut, sesame, rapeseed, corn and sunflower) have been clearly discriminated by PCA analysis. Furthermore, we show how this approach combined with a PLS model can detect adulteration processes such as the addition of hazelnut oil into olive oil, a common fraud in food industry.
引用
收藏
页码:153 / 158
页数:6
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