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Registro Completo |
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Biblioteca(s): |
Embrapa Florestas. |
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Data corrente: |
30/07/2013 |
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Data da última atualização: |
30/07/2013 |
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Tipo da produção científica: |
Artigo em Periódico Indexado |
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Autoria: |
WELKE, J. E.; MANFROI, V.; ZANUS, M.; LAZZAROTTO, M.; ZINI, C. A. |
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Afiliação: |
JULIANE ELISA WELKE, UFRGS; VITOR MANFROI, UFRGS; MAURO CELSO ZANUS, CNPUV; MARCELO LAZZAROTTO, CNPF; CLÁUDIA ALCARAZ ZINI, UFRGS. |
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Título: |
Differentiation of wines according to grape variety using multivariate analysis of comprehensive two-dimensional gas chromatography with time-of-flight mass spectrometric detection data. |
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Ano de publicação: |
2013 |
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Fonte/Imprenta: |
Food Chemistry, n. 141, p. 3897-3905, 2013. |
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Idioma: |
Inglês |
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Conteúdo: |
Headspace solid-phase microextraction (HS-SPME) combined with comprehensive two-dimensional gas chromatography with time-of-flight mass spectrometry detection (GCÂGC/TOFMS) was used to analyse the volatiles in five types of wines elaborated with grapes of Cabernet Sauvignon, Merlot, Chardonnay, Sauvignon Blanc and Pinot Noir varieties. Fisher ratio, principal component analysis (PCA) and stepwise linear discriminant analysis (SLDA) were used to develop a discriminant model and, as a result, 12 volatile compounds enabled differentiation and classification of wines according to grape cultivars. A detailed examination of GCÂGC/TOFMS data showed that the use of one-dimensional gas chromatography with a mass spectrometric detector (1D-GC/MS) would probably result in misidentification of some of these 12 compounds, as they showed partial coelution with other components in the first chromatographic dimension. |
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Palavras-Chave: |
Brasil; Composto volátil; Espectofotometria; Fisher ratio; PCA; Rio grande do sul; Serra gaúcha; Volatie compound; Wine. |
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Thesagro: |
Cromatografia Gasosa; Vinho. |
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Categoria do assunto: |
-- |
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Marc: |
LEADER 01822naa a2200301 a 4500
001 1963021
005 2013-07-30
008 2013 bl uuuu u00u1 u #d
100 1 $aWELKE, J. E.
245 $aDifferentiation of wines according to grape variety using multivariate analysis of comprehensive two-dimensional gas chromatography with time-of-flight mass spectrometric detection data.$h[electronic resource]
260 $c2013
520 $aHeadspace solid-phase microextraction (HS-SPME) combined with comprehensive two-dimensional gas chromatography with time-of-flight mass spectrometry detection (GCÂGC/TOFMS) was used to analyse the volatiles in five types of wines elaborated with grapes of Cabernet Sauvignon, Merlot, Chardonnay, Sauvignon Blanc and Pinot Noir varieties. Fisher ratio, principal component analysis (PCA) and stepwise linear discriminant analysis (SLDA) were used to develop a discriminant model and, as a result, 12 volatile compounds enabled differentiation and classification of wines according to grape cultivars. A detailed examination of GCÂGC/TOFMS data showed that the use of one-dimensional gas chromatography with a mass spectrometric detector (1D-GC/MS) would probably result in misidentification of some of these 12 compounds, as they showed partial coelution with other components in the first chromatographic dimension.
650 $aCromatografia Gasosa
650 $aVinho
653 $aBrasil
653 $aComposto volátil
653 $aEspectofotometria
653 $aFisher ratio
653 $aPCA
653 $aRio grande do sul
653 $aSerra gaúcha
653 $aVolatie compound
653 $aWine
700 1 $aMANFROI, V.
700 1 $aZANUS, M.
700 1 $aLAZZAROTTO, M.
700 1 $aZINI, C. A.
773 $tFood Chemistry$gn. 141, p. 3897-3905, 2013.
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Registro original: |
Embrapa Florestas (CNPF) |
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