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

Quimica nova

Andrade, Marcelo Farias de¹  Souza, Dayvson José Palmeira de¹  Paim, Ana Paula Silveira¹  Silva, João Bosco Paraíso da¹ 

[1] Universidade Federal de Pernambuco, Recife, Brasil

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 ofcertain parameters to classify a wine and allow its commercialization. Somephysico-chemical and some color parameters were determined in this work in samplesof different red wines sold in the metropolitan area of Recife. Multivariateanalysis comprising principal component analysis and hierarchical cluster analysiswas employed to distinguish the analyzed wines. The results for pH, chlorideconcentration, color parameters and ammonium content were the most importantvariables for sample classification. It was also possible to classify the winesas soft or dry wines and amongst the soft wines we could determine two out offour winegrowing producers.

【 授权许可】

CC BY