title: Isotopic and elemental data for tracing the origin of European olive oils.
abstract: H, C, and O stable isotope ratios and the elemental profile of 267 olive oils and 314 surface waters collected from 8 European sites are presented and discussed. The aim of the study was to investigate if olive oils produced in areas with different climatic and geological characteristics could be discriminated on the basis of isotopic and elemental data. The stable isotope ratios of H, C, and O of olive oils and the ratios of H and O of the relevant surface waters correlated to the climatic (mainly temperature) and geographical (mainly latitude and distance from the coast) characteristics of the provenance sites. It was possible to characterize the geological origin of the olive oils by using the content of 14 elements (Mg, K, Ca, V, Mn, Zn, Rb, Sr, Cs, La, Ce, Sm, Eu, U). By combining the 3 isotopic ratios with the 14 elements and applying a multivariate discriminant analysis, a good discrimination between olive oils from 8 European sites was achieved, with 95% of the samples correctly classified into the production site.
authors.affiliation: IASMA-Fondazione Edmund Mach, San Michele all'Adige (TN), Italy. federica.camin@iasma.it
authors.forename: Federica
authors.initials: F
authors.lastname: Camin
authors.forename: Roberto
authors.initials: R
authors.lastname: Larcher
authors.forename: Giorgio
authors.initials: G
authors.lastname: Nicolini
authors.forename: Luana
authors.initials: L
authors.lastname: Bontempo
authors.forename: Daniela
authors.initials: D
authors.lastname: Bertoldi
authors.forename: Matteo
authors.initials: M
authors.lastname: Perini
authors.forename: Claus
authors.initials: C
authors.lastname: Schlicht
authors.forename: Antje
authors.initials: A
authors.lastname: Schellenberg
authors.forename: Freddy
authors.initials: F
authors.lastname: Thomas
authors.forename: Katharina
authors.initials: K
authors.lastname: Heinrich
authors.forename: Susanne
authors.initials: S
authors.lastname: Voerkelius
authors.forename: Micha
authors.initials: M
authors.lastname: Horacek
authors.forename: Henriette
authors.initials: H
authors.lastname: Ueckermann
authors.forename: Heinz
authors.initials: H
authors.lastname: Froeschl
authors.forename: Bernhard
authors.initials: B
authors.lastname: Wimmer
authors.forename: Gerhard
authors.initials: G
authors.lastname: Heiss
authors.forename: Malcolm
authors.initials: M
authors.lastname: Baxter
authors.forename: Andreas
authors.initials: A
authors.lastname: Rossmann
authors.forename: Jurian
authors.initials: J
authors.lastname: Hoogewerff
mesh_terms: D002247:Carbon Isotopes / Q000032:analysis*; D003903:Deuterium / Q000032:analysis*; D004602:Elements; D005060:Europe; D007553:Isotope Labeling; D000069463:Olive Oil; D010103:Oxygen Isotopes / Q000032:analysis*; D010938:Plant Oils / Q000737:chemistry*; D011786:Quality Control
chemical_list: D002247:Carbon Isotopes; D004602:Elements; D000069463:Olive Oil; D010103:Oxygen Isotopes; D010938:Plant Oils; D003903:Deuterium