.As seen previously for the anthocyanins,the total content of phenolic acids and flavonols in all wine samples decreased during the 5 months of bottle storage (up to 11% and 19% less content for the case of phenolic acids and flavonols, respectively), although to a lower extent than the anthocyanins. This decrease could be due to the chemical oxidation and/or copigment formation of these compounds with anthocyanins