Abstract
Twelve samples of commercially available wines produced in three different wine-growing sub-regions of Croatia were analysed, to determine their polyphenolic content and associate the concentration levels of these compounds with the geographical origin of wine. Total phenols were analysed according to the Folin–Ciocalteu method. Fifteen individual polyphenols were analysed by a reverse-phase HPLC method that used gradient elution and diode array detection. Wines made in Central and Southern Dalmatia were richest in total phenols and individual polyphenols. Flavonols and trans-resveratrol pattern were the basis for the classification of samples according to their geographical origin and type of wine.
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