Flavonols Myricetin-3-o-glucoside, Q Quercetin- -o-rutinoside, Kaempferol-3-o-glucoside Myricetin, and Quercetin were the flavonols identified in organic and con- ventional wines. Myricetin-3-o-glucoside and quercetin-3-o- glucoside were the main flavonols in the different types of vinifications (Table 4). Our results were higher than those C described by McDonald and others (1998) in a study carried out with 65 types of Italian red wines from different geographical c origins. No significant differences were detected between the 3 winemaking techniques used.