Abstract：
:We studied Brazilian wines produced by microvinification from Cabernet Sauvignon and Merlot grapes, vintages 2007 and 2008, from the Serra Gaúcha, Campanha and Serra do Sudeste regions, in order to differentiate them according to geographical origin by using isotope and mineral element analyses. In addition, the influence of vintage production in isotope values was verified. Isotope analysis was performed by isotope ratio mass spectrometry (IRMS), and the determination of minerals was by flame atomic absorption (FAA). The best parameters to classify the wines in the 2008 vintage were Rb and Li. The results of the δ(13)C of wine ethanol, Rb and Li showed a significant difference between the varieties regardless of the region studied. The δ(18)O values of water and δ(13)C of ethanol showed significant differences, regardless of the variety. Discriminant analysis of isotope and minerals values allowed to classify approximately 80% of the wines from the three regions studied.
journal_name
Food Chemjournal_title
Food chemistryauthors
Dutra SV,Adami L,Marcon AR,Carnieli GJ,Roani CA,Spinelli FR,Leonardelli S,Vanderlinde Rdoi
10.1016/j.foodchem.2013.04.106subject
Has Abstractpub_date
2013-12-01 00:00:00pages
2148-53issue
3eissn
0308-8146issn
1873-7072pii
S0308-8146(13)00566-9journal_volume
141pub_type
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