title: Determination of the geographical origin of Brazilian wines by isotope and mineral analysis.
abstract: In the present research, we studied wines from three different south Brazilian winemaking regions with the purpose of differentiating them by geographical origin of the grapes. Brazil's wide territory and climate diversity allow grape cultivation and winemaking in many regions of different and unique characteristics. The wine grape cultivation for winemaking concentrates in the South Region, mainly in the Serra Gaúcha, the mountain area of the state of Rio Grande do Sul, which is responsible for 90% of the domestic wine production. However, in recent years, two new production regions have developed: the Campanha, the plains to the south and the Serra do Sudeste, the hills to the southeast of the state. Analysis of isotopic ratios of (18)O/(16)O of wine water, (13)C/(12)C of ethanol, and of minerals were used to characterize wines from different regions. The isotope analysis of δ(18)O of wine water and minerals Mg and Rb were the most efficient to differentiate the regions. By using isotope and mineral analysis, and discrimination analysis, it was possible to classify the wines from south Brazil.
authors: Institute of Biotechnology, University of Caxias do Sul (UCS), Rua Francisco Getúlio Vargas, 1130, Caxias do Sul, Rio Grande do Sul 95070-560, Brazil. scdutra@terra.com.br
authors: S V
authors: SV
authors: Dutra
authors: L
authors: L
authors: Adami
authors: A R
authors: AR
authors: Marcon
authors: G J
authors: GJ
authors: Carnieli
authors: C A
authors: CA
authors: Roani
authors: F R
authors: FR
authors: Spinelli
authors: S
authors: S
authors: Leonardelli
authors: C
authors: C
authors: Ducatti
authors: M Z
authors: MZ
authors: Moreira
authors: R
authors: R
authors: Vanderlinde
mesh_terms: D001938:Brazil; D002247:Carbon Isotopes / Q000032:analysis; D002980:Climate; D000431:Ethanol / Q000032:analysis; D008903:Minerals / Q000032:analysis*; D010103:Oxygen Isotopes / Q000032:analysis; D027843:Vitis / Q000737:chemistry*; D014867:Water / Q000032:analysis; D014920:Wine / Q000032:analysis*
chemical_list: D002247:Carbon Isotopes; D008903:Minerals; D010103:Oxygen Isotopes; D014867:Water; D000431:Ethanol