title: Strontium isotope characterization of wines from Quebec, Canada.
abstract: The (87)Sr/(86)Sr isotope ratios were measured on grape, wine and soil samples collected in 13 commercial vineyards located in three major wine producing areas of Quebec (Canada). The soils yield Sr isotope ratios that are intimately related to the local geology and unambiguously discriminate the different producing areas. A strong relationship exists between the (87)Sr/(86)Sr isotope ratios of the wine and the grapes. This suggests that the vinification process does not alter the overall Sr budget. Although the Sr isotope ratios of the grapes do not show a strong correlation with the bulk Sr isotope composition of the soil, they do correlate strongly with the Sr isotope composition contained in the labile fraction of the soil. This indicates that the labile fraction of the soil represents the Sr reservoir available to the plant during its growth. This study demonstrates that the Sr isotope approach can be used as a viable tool in forensic science for investigating the provenance of commercial wines.
authors.affiliation: GEOTOP-Université du Québec à Montréal, 201 Avenue Président Kennedy, Montréal, QC, Canada.
authors.forename: Victor
authors.initials: V
authors.lastname: Vinciguerra
authors.affiliation: GEOTOP-Université du Québec à Montréal, 201 Avenue Président Kennedy, Montréal, QC, Canada.
authors.forename: Ross
authors.initials: R
authors.lastname: Stevenson
authors.affiliation: Centre de développement bioalimentaire du Québec, 1642 rue de la Ferme, La Pocatière, QC, Canada.
authors.forename: Karine
authors.initials: K
authors.lastname: Pedneault
authors.affiliation: GEOTOP-Université du Québec à Montréal, 201 Avenue Président Kennedy, Montréal, QC, Canada.
authors.forename: André
authors.initials: A
authors.lastname: Poirier
authors.affiliation: GEOTOP-Université du Québec à Montréal, 201 Avenue Président Kennedy, Montréal, QC, Canada.
authors.forename: Jean-François
authors.initials: JF
authors.lastname: Hélie
authors.affiliation: GEOTOP-Université du Québec à Montréal, 201 Avenue Président Kennedy, Montréal, QC, Canada. Electronic address: widory.david@uqam.ca.
authors.forename: David
authors.initials: D
authors.lastname: Widory
mesh_terms: D002170:Canada; D011792:Quebec; D012987:Soil / Q000737:chemistry*; D013325:Strontium Isotopes / Q000032:analysis*; D027843:Vitis / Q000737:chemistry* / Q000254:growth & development; D014920:Wine / Q000032:analysis*
chemical_list: D012987:Soil; D013325:Strontium Isotopes
keywords: Food authentication; Geographic provenance; Strontium isotope ratios; Wine