Beverages, Volume 6, Issue 4
December 2020 - 16 articles
Cover Story: Barbera d’Asti, Barbera d’Asti superiore, and Nizza are DOCG (Denominazione di Origine Controllata e Garantita) wines produced in Piemonte (Italy) from the Barbera grape variety. Differences in terms of purity, ageing, and zone of production make Nizza, which follows the most stringent rules, the one with the highest market value. To guarantee producers and consumers, authentication methods must be developed to distinguish among the different designations. As the production zones completely overlap, we checked whether the metals content allowed distinction, using ICP elemental analysis and multivariate data analysis to study the authentication and traceability of samples from the three designations of 2015 vintage. The results show that—as far as elemental distribution in wine is concerned—work in the cellar, rather than geographic provenance, is crucial for the possibility of distinction.
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