3. Results and discussion
3.1. Analytical characters of the wines produced by IF and SF
Table 1 shows the main chemical parameters of the final wines including alcohols, residual sugars, pH, total acids and volatile
acids. There were no significant differences in these parameters between both wines. Wines from IF and SF had a final ethanol concentration of 14.2% and 13.8%, respectively, and the content of residual sugar in IF was lower than that of SF (2.2 g/L vs 2.9 g/L).