Multivariate analysis of phisico-chemical parameters in samples of red wines sold in the metropolitan area of Recife

Química Nova

Andrade, Marcelo Farias de¹  Souza, Dayvson José Palmeira de¹  Universidade Federal de Pernambuco, Recife, Brasil¹  Paim, Ana Paula Silveira¹  Silva, João Bosco Paraíso da¹ 

关键词: red wine;    physico-chemical methods;    chemometrics.;   

DOI  :  10.1590/S0100-40422008000200020

学科分类：化学（综合）

来源: Sociedade Brasileira de Quimica

【 摘 要 】

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.

【 授权许可】

Unknown