RT Journal Article SR Electronic T1 Influence of Geographic Origin on the Sensory Characteristics and Wine Composition of Vitis vinifera cv. Cabernet Sauvignon Wines from Australia JF American Journal of Enology and Viticulture JO Am. J. Enol. Vitic. FD American Society for Enology and Viticulture SP ajev.2012.12023 DO 10.5344/ajev.2012.12023 A1 Anthony L. Robinson A1 Douglas O. Adams A1 Paul K. Boss A1 Hildegarde Heymann A1 Peter S. Solomon A1 Robert D. Trengove YR 2012 UL http://www.ajevonline.org/content/early/2012/06/22/ajev.2012.12023.abstract AB The current study explores the relationship between sensory characteristics and wine composition of Cabernet Sauvignon wines in relation to Australian Geographical Indications (GIs). Descriptive sensory analysis was conducted to characterize the sensory attributes of commercially produced Cabernet Sauvignon wines from the Barossa Valley, Clare Valley, Coonawarra, Frankland River, Langhorne Creek, Mount Barker, Margaret River, McLaren Vale, Padthaway, and Wrattonbully GIs. Canonical variate analysis using the significant sensory attributes demonstrated that each GI could be distinguished from one another. A recently developed analytical method was employed to analyze over 350 volatile compounds in the wines assessed, and measures of the major non-volatile components were also determined. Compositional results were analyzed using partial least squares discriminant analysis to identify candidate components that were unique to certain GIs including 2-isobutyl-3-methoxypyrazine, menthone, isomenthone, carvacrol, δ-octalactone, p-methylacetophenone, m-dimethoxybenzene, protein-precipitable tannin, and monomeric anthocyanins. The results of this study demonstrate that Australian Cabernet Sauvignon wines have common sensory attributes related to their geographic origin. The work also identifies a number of candidate components that are related to individual GIs which warrant further investigation. The study is the first to explore the concept of regionality in Cabernet Sauvignon wines from Australia.