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Multivariate classification of Montepulciano d'Abruzzo wine samples according to vintage year
Author(s) -
Giaccio Mario,
Del Signore Antonella
Publication year - 2004
Publication title -
journal of the science of food and agriculture
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.782
H-Index - 142
eISSN - 1097-0010
pISSN - 0022-5142
DOI - 10.1002/jsfa.1624
Subject(s) - vintage , principal component analysis , wine , linear discriminant analysis , maceration (sewage) , multivariate statistics , mathematics , statistics , food science , geography , biology , environmental science , archaeology , environmental engineering
Samples of Montepulciano wines from three different vintages (1994, 1995 and 1996), produced in different locations in the Abruzzo region of Italy using different yeasts and processing procedures, were subjected to 17 different chemical analyses. The data were analysed by principal component analysis (PCA) and linear discriminant analysis (LDA). From a statistical approach it is possible to point out that vintage year, closely connected with climatic conditions, was the factor that best differentiated wines as regards chemical composition, compared with other factors such as place of origin, type of yeast, fermentation vessel, clarification method and time and temperature of maceration. Copyright © 2004 Society of Chemical Industry