RT Journal Article
SR Electronic
T1 A Multivariate Methodological Approach to Relate Wine to Characteristics of Grape Composition: The Case of Typicality
JF American Journal of Enology and Viticulture
JO Am J Enol Vitic.
FD American Society for Enology and Viticulture
SP 49
OP 59
DO 10.5344/ajev.2016.15111
VO 68
IS 1
A1 Valentina Canuti
A1 Monica Picchi
A1 Bruno Zanoni
A1 Giovanna Fia
A1 Mario Bertuccioli
YR 2017
UL http://www.ajevonline.org/content/68/1/49.abstract
AB Typicality is defined as the characteristics of a Protected Designation of Origin (PDO) wine related to a terroir. In the context of a PDO, a typicality assessment can be used to assess the global quality of a PDO wine. This study used a two-phase method to identify the distinctive characteristics of a PDO wine and then apply those findings to a case study of Chianti Montespertoli DOCG wine, where DOCG is the Italian acronym for PDO. A panel of wine professionals evaluated the typicality of a series of selected PDO wine samples, and a partial least squares (PLS) regression model was used to associate wine typicality and chemical composition. The model was used to predict wine typicality from the chemical composition of experimental wines (2009, 2010, and 2011 vintages) produced from grapes growing in the PDO area. Finally, regression coefficients of the PLS model were analyzed to select which grape chemical parameters were significant in describing the typicality of the wine. These highlight the most important factors to manage during winemaking to ensure the typicality of this wine.