Affiliation:
1. Department of Agriculture and Forest Sciences (DAFNE), Tuscia University, Via S. Camillo de Lellis Snc, 01100 Viterbo, Italy
2. Council for Agricultural Research and Economics, Research Center for Viticulture and Enology, CREA-VE Via Casamassima 148, 70010 Turi, Italy
Abstract
The wide ampelographic treasure of Italian wine grape varieties is driving research towards suitable approaches for the varietal authenticity control of wine. In this paper, Aglianico, Negroamaro, Primitivo and Uva di Troia red wines, which were produced experimentally by single-grape winemaking from non-aromatic grapes native to southern Italy, were analyzed with respect to berry markers, namely anthocyanins, hydroxycinnamic acids (HPLC-DAD), shikimic acid (HPLC-UV) and glycosidic aroma precursors (GC-MS). The study confirms that, just as for the berries, useful varietal authenticity markers for red wine, even after aging, turn out to be hydroxycinnamic acids, relative amounts of acylated forms of anthocyanins, and shikimic acid, together with some grape glycosidic precursors from terpenes and C13− norisoprenoids. Principal Component Analysis was used as a valuable tool to highlight the results.
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