Aroma identity of red wines from old-vine genotypes cultivated on mount Etna

The slopes of Mount Etna (Sicily, Italy) are home to an extraordinary viticultural heritage, comprising several vine genotypes at risk of extinction, whose oenological potential remains largely unexplored. This study aims to provide an aromatic characterization of red wines produced from five old-vine genotypes (Barbarossa Etna, Madama Nera, Moscatella Nera, Minnella Nera, and Terribile), comparing them with local and international cultivars. The wines were produced using standardized microvinification techniques; physicochemical parameters were measured according to OIV methods, volatile aromatic compounds were analyzed using HS-SPME/GC-MS, and sensory analysis was carried out using quantitative descriptive analysis. The wines from old-vine genotypes exhibited physicochemical characteristics in line with Etna DOC standards. The profiling of volatile organic compounds revealed clear cultivar-specific aromatic characteristics, with Moscatella Nera exhibiting the most complex and terpene-rich content. The sensory analysis confirmed a distinctive aroma for each old-vine genotype wine, with substantial differences from traditional and international wines. These results support the oenological significance of these old-vine genotypes and their potential reintroduction into production to enhance the biodiversity and identity of Etna wines.