Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
1187345 | Food Chemistry | 2008 | 7 Pages |
Abstract
The genetic varieties of Spanish extra virgin olive oils (Arbequina, Hojiblanca and Picual) were predicted by direct infusion of the samples in the electrospray ionization source of a mass spectrometer, followed by linear discriminant analysis of the spectral data. The samples were 1:50 diluted (v/v) with an 85:15 propanol/methanol (v/v) mixture containing 40 mM KOH and infused. The abundances of the [M–H]− peaks of the free fatty acids (7 peaks) and 28 phenolic compounds (20 peaks) were measured. Ratios of pairs of peak abundances were used as predictors in the construction of the linear discriminant analysis models. An excellent resolution between the three genetic varieties was achieved.
Related Topics
Physical Sciences and Engineering
Chemistry
Analytical Chemistry
Authors
M.J. Lerma-García, J.M. Herrero-Martínez, G. Ramis-Ramos, E.F. Simó-Alfonso,