The wine was a white table wine from harvest 2010 (free sulphurdioxide 15 mg/L, alcoholic strength 12.00% v/v, pH 3.32), supplied by Viticoltori Friulani ‘‘La Delizia’’ (Casarsa della Delizia, PN, Italy); additives, lees and YD preparation were added in the same amounts reported above for wine-like solution; in addition a Control sample (untreated wine) was also included in the experimental design. Control wine and treated samples were subjected to DPPH assay as reported below. All the experiments were carried out in three repetitions, for both wines and model solutions.