Utilize este identificador para referenciar este registo: http://hdl.handle.net/10400.13/911
Título: Classification of Boal, Malvazia, Sercial and Verdelho wines based on terpenoid patterns
Autor: Câmara, José Sousa
Alves, Maria Arminda
Marques, José Carlos
Palavras-chave: Free terpenoids
Headspace analysis
Solid-phase micro-extraction
Multivariate analysis
.
Faculdade de Ciências Exatas e da Engenharia
Data: 2007
Editora: Elsevier
Citação: Câmara, J. S., Alves, M. A., & Marques, J. C. (2007). Classification of Boal, Malvazia, Sercial and Verdelho wines based on terpenoid patterns. Food Chemistry, 101(2), 475-484.
Resumo: Thirty-six Madeira wine samples from Boal, Malvazia, Sercial and Verdelho white grape varieties were analyzed in order to estimate the free fraction of monoterpenols and C13 norisoprenoids (terpenoid compounds) using dynamic headspace solid phase micro-extraction (HS-SPME) technique coupled with gas chromatography–mass spectrometry (GC–MS). The average values from three vintages (1998–2000) show that these wines have characteristic profiles of terpenoid compounds. Malvazia wines exhibits the highest values of total free monoterpenols, contrary to Verdelho wines which had the lowest levels of terpenoids but produced the highest concentration of farnesol. The use of multivariate analysis techniques allows establishing relations between the compounds and the varieties under investigation. Principal component analysis (PCA) and linear discriminant analysis (LDA) were applied to the obtained matrix data. A good separation and classification power between the four groups as a function of their varietal origin was observed.
Peer review: yes
URI: http://hdl.handle.net/10400.13/911
DOI: 10.1016/j.foodchem.2006.02.004
Aparece nas colecções:Artigos em revistas internacionais

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