1. Department of Food, Environmental and Nutritional Sciences; Università degli Studi di Milano; Milano Italy
2. Consiglio per la Ricerca e Sperimentazione in Agricoltura; Centro di Ricerca per l'Enologia; Asti Italy
3. Department of Viticulture and Oenology; Stellenbosch University; Stellenbosch South Africa
4. Central Analytical Facility (CAF); Stellenbosch University; Stellenbosch South Africa
5. Department of Biochemistry; Stellenbosch University; Stellenbosch South Africa