A random forest analysis correctly identified 11 out of 23 individual parcels across the different vintages. As well, regional climate conditions allowed partial discrimination of the GIs (and also some parcels). Vintage effect and specific phenolic compounds were associated with some GIs or parcels. Data discriminated wines from different GIs and parcels, based on an integrative data analysis by chemometric tools. Wines were elaborated under standardized winemaking conditions over three consecutive vintages (2016–2018). This study evaluated the phenolic profiles of Malbec wines made from grapes of 23 parcels distributed in 12 geographical indications (GIs) from Mendoza, Argentina.
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