VARIETAL CHARACTERIZATION AS FUNCTION OF ANTHOCYANIN CONCENTRATION OFTHE GRAPE - DISCRIMINANT-ANALYSIS

The utility of anthocyanins and others variables correlated with them, e.i. some phenolic compounds, color density and tonality, as discrimi nant parameters to classify different red grape cultivars, was studied using discriminant analysis. The results show the importance of acyl- anthocyanins, specially p-coumaryl and acetyl derivatives, as paramete rs to characterize red grape cultivards. Their discriminant role is in depedent of the production zone and year in which the sampling is carr ied out.