Institute of Biotechnology, University of Caxias do Sul (UCS), Rua Francisco Getúlio Vargas, 1130, Caxias do Sul, Rio Grande do Sul 95070-560, Brazil.
Anal Bioanal Chem. 2011 Sep;401(5):1571-6. doi: 10.1007/s00216-011-5181-2. Epub 2011 Jul 1.
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.
在本研究中，我们研究了来自南巴西南部三个不同酿酒区的葡萄酒，旨在根据葡萄的地理来源对其进行区分。巴西广阔的领土和气候多样性使得葡萄种植和酿酒在许多具有不同独特特征的地区成为可能。用于酿酒的酿酒葡萄主要集中在南里奥格兰德州的山区——高卓山脉，这里负责了国内 90%的葡萄酒产量。然而，近年来，又出现了两个新的产区：南坎帕尼亚和东南山脉。我们使用葡萄酒水的 (18)O/(16)O 同位素比值、乙醇的 (13)C/(12)C 同位素比值以及矿物质分析来对来自不同地区的葡萄酒进行特征描述。对葡萄酒水和矿物质 Mg 和 Rb 的 δ(18)O 的同位素分析对区分地区最有效。通过使用同位素和矿物质分析以及判别分析，可以对南巴西南部的葡萄酒进行分类。
