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Wines of three different grape varieties, Vranec, Cabernet Sauvignon and  Merlot were examined for their characterisation in terms of anthocyanin and  chromatic profiles, total polyphenols and antioxidant potential. Total,  monomeric, polymeric and copigmented anthocyanins were determined by  spectrophotometry and the individual anthocyanin compounds were quantified  using HPLC-DAD. Chromatic profile was evaluated according to colour density,  hue, % red, % blue, % yellow and brilliance (% dA). The established data were  submitted to analysis of variance and principle component analysis in order  to evaluate their potential for differentiation of wines according to variety  and vintage. Vranec wines have shown distinctive characteristics, with the  highest content of anthocyanins and values of colour intensity, % red and %  dA, compared to the other two studied varieties. The content of  petunidin-3-glucoside, peonindin-3-glucoside and anthocyanin acetates were  established as possible markers for differentiation of Vranec wines from  Cabernet Sauvignon and Merlot wines. However, none of the assayed parameters  could be used for differentiation of Cabernet Sauvignon from Merlot wines. It  was observed that wine age limits successful classification of the wines by  variety according to anthocyanins. The chromatic parameters allowed  distinguishing of young (aged up to 1 year) from old Vranec wines

Characterisation of Vranec, Cabernet sauvignon and Merlot wines based on their chromatic and anthocyanin profiles