Abstract
The anthocyanin pattern of 18 grape cultivars grown under the same conditions during several years, and also the anthocyanin pattern of wines made from them, using the same winemaking technology, has been studied by HPLC. Chromatographic data indicate that every grape cultivar present a characteristic anthocyanin pattern, that is reflected in wines made from them. Two-way ANOVA and variance component analysis point out that the anthocyanin pattern of grapes and wines is mostly affected by the genetic characteristics of grape cultivars. Moreover, the use of multivariate statistical analysis (principal component analysis and discriminant analysis) allows the classification of grapes and wines into several groups on the basis of their anthocyanin pattern, and shows that the anthocyanin pattern of young single-cultivar wines is related to the anthocyanin pattern of grapes used for winemaking. Results may be relevant for using the anthocyanin pattern of young single-cultivar wines as an analytical tool to determine the grape cultivar used to make them.
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