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Análise multivariada de parâmetros físico-químicos em amostras de vinhos tintos comercializados na região metropolitana do Recife Multivariate analysis of phisico-chemical parameters in samples of red wines sold in the metropolitan area of Recife

By Marcelo Farias de Andrade, Dayvson José Palmeira de Souza, João Bosco Paraíso da Silva and Ana Paula Silveira Paim

Abstract

<abstract language="eng">The Brazilian legislation requires analysis of certain parameters to classify a wine and allow its commercialization. Some physico-chemical and some color parameters were determined in this work in samples of different red wines sold in the metropolitan area of Recife. Multivariate analysis comprising principal component analysis and hierarchical cluster analysis was employed to distinguish the analyzed wines. The results for pH, chloride concentration, color parameters and ammonium content were the most important variables for sample classification. It was also possible to classify the wines as soft or dry wines and amongst the soft wines we could determine two out of four winegrowing producers

Topics: red wine, physico-chemical methods, chemometrics, Chemistry, QD1-999, Science, Q, DOAJ:Chemistry (General), DOAJ:Chemistry
Publisher: Sociedade Brasileira de Química
Year: 2008
DOI identifier: 10.1590/S0100-40422008000200020
OAI identifier: oai:doaj.org/article:bf5e12ba99224a469d82c04180844721
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