The identification and quantification of anthocyanins
and flavonols was attempted, while the metal content was
examined throughout the vinification process and changes were
correlated with the polyphenols variations. After the vinification
process the wines were stored under modified atmosphere (50%
N2, 50% CO2), which in a previous experimental work proved to
protect wine against deterioration. Changes in polyphenol and
metal content of wines were studied throughout a storage period
of 1 year