Differentiation of young red wines obtained in a warm climate region
2007
Viviani, Ana | Moreno, Juan | Peinado, Rafael A.
Five red wines obtained from the grape varieties: Tempranillo, Syrah, Merlot, Graciano and Pinot Noir-Cabernet Franc cultivated in the Montilla-Moriles region have been subjected to analysis of major volatile compounds, polyols and enological variables. Among the colours parameters highlight the total polyphenol contents and the absorbance at 520 nm of the Syrah and Graciano wine samples, whereas the higher alcohols concentrations show values below 400 mg L⁻¹. The propanol, isobutanol, 2-methyl-1-butanol, 3-methyl-1-butanol and 2-phenylethanol have been used to distinguish by means of principal component analysis the five red wines. Only two components explained the 92.4% of the total variance.
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