Chemometric studies of bottled wines with denomination of origin from the Canary Islands (Spain)

Seventeen physicochemical parameters including conventional enological parameters, polyphenolic parameters and volatile compounds were determined in 153 wines from the main wine producers belonging to the Canarian zones with Denomination of Origin (DO). Numerous significant correlations were found between the physicochemical parameters analysed. Applying the principal component analysis, the wines tend to separate on the basis of the type of wine. Besides, the dimension space was reduced to six principal components that explain 76.1% of the total variance. The principal component analysis of the red wines separated them as a function of vintage. Linear discriminant analysis (LDA) applied to all the wines, allowed a reasonable differentiation according to vintage, type of wine and island of production.