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
| Autor: | Marcelo Farias de Andrade, Dayvson José Palmeira de Souza, João Bosco Paraíso da Silva, Ana Paula Silveira Paim |
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| Jazyk: | English<br />Spanish; Castilian<br />Portuguese |
| Rok vydání: | 2008 |
| Předmět: | |
| Zdroj: | Química Nova, Vol 31, Iss 2, Pp 296-300 (2008) |
| Druh dokumentu: | article |
| ISSN: | 0100-4042 1678-7064 04180844 |
| DOI: | 10.1590/S0100-40422008000200020 |
| Popis: | 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. |
| Databáze: | Directory of Open Access Journals |
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