The Bordô, after Isabel, is the table wine presenting the greater economic importance in the Serra Gaúcha region, because there is a segment of the market that likes its characteristics, specially its fruity flavor, color intensity, and violet hue. Due to these aspects and to the very dry climatic conditions in the 2005 summer, where rain represented 38% of the climatological normal, Bordô wines were analyzed from the commune of Flores da Cunha, RS, Brazil, one of the most important producers of the Serra Gaúcha region. Analyzed wines were varietal ones and made according to the technology of each winery. Thirty nine variables were evaluated and the average parameters of the most expressive ones were the following: alcohol 10.58% v/v; total acidity 91meq L-1; volatile acidity 7.3meq L-1; pH 3.21; dry extract 24.24g L-1; reducing sugars 2.90g L-1; reduced dry extract 22.34g L-1; ashes 2.09g L-1; tartaric acid 5.35g L-1; A 420 0.480; A 520 1.296; A 620 0.184; tannins 1.41g L-1; anthocianins 778.8mg L-1; ethanal 14.9mg L-1; ethyl acetate 59.3mg L-1; methanol 290.9mg L-1; 1-propanol 24.9mg L-1; 2-mehyL-1-propanol 40.6mg L-1; 2-methyL-1-butanol 45.9mg L-1; 3-methyL-1-butanol 149.1mg L-1; sum of higher alcohols 260.5mg L-1; and K 953mg L-1.
Vitiviniculture; Vitis labrusca; physicochemical composition
