The objective of the work was to evaluate the physico-chemical characteristics of the Cabernet Franc wine from the 1995/1996 vegetative cycle. It was conducted in eight vineyards in the communes of Bento Gonçalves and Monte Belo do Sul, State of Rio Grande do Sul, Brazil. From each vineyard, two microvinifications were elaborated and wines were analysed by physicochemical, atomic absorption spetrophotometry, and liquid and gas chromatography processes. The parameters of the most significant variables were the following: alcohol 9.65%, total titratable acidity 69 meq L-1, pH 3.46, reduced dry extract 16.0 g L-1, K in the ashes 49.4%, tartaric acid 33 meq L-1, glycerol 9,3 g L-1, proline 669 mg L-1, anthocyanins 330 mg L-1, tannins 1.19 g L-1, color intensity 0.286, K 1,078 mg L-1, methanol 101.7 mg L-1, and summ of higher alcohols 450 mg L-1. The results found in the analysed wines showed similar results to parameters previously determined in Cabernet Franc wine from the same region elaborated from grapes cultivated in the pergola system. This makes evident that grapevines conducted in the lyre system are an alternative to produce quality red wine in the Serra Gaúcha region.
enology; chemical composition; wine; Cabernet Franc; trellising system
