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Multivariate analysis for the classification and differentiation of Madeira wines according to main grape varieties

2006-02Journal article Open access
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dc.contributor.authorCâmara, José S.
dc.contributor.authorAlves, Maria Arminda
dc.contributor.authorMarques, José C.
dc.date.accessioned2015-11-26T15:47:02Z
dc.date.available2015-11-26T15:47:02Z
dc.date.issued2006-02
dc.description.abstractIn order to differentiate and characterize Madeira wines according to main grape varieties, the volatile composition (higher alcohols, fatty acids, ethyl esters and carbonyl compounds) was determined for 36 monovarietal Madeira wine samples elaborated from Boal, Malvazia, Sercial and Verdelho white grape varieties. The study was carried out by headspace solid-phase microextraction technique (HS-SPME), in dynamic mode, coupled with gas chromatography–mass spectrometry (GC–MS). Corrected peak area data for 42 analytes from the above mentioned chemical groups was used for statistical purposes. Principal component analysis (PCA) was applied in order to determine the main sources of variability present in the data sets and to establish the relation between samples (objects) and volatile compounds (variables). The data obtained by GC–MS shows that the most important contributions to the differentiation of Boal wines are benzyl alcohol and (E)-hex-3-en-1-ol. Ethyl octadecanoate, (Z)-hex-3-en-1-ol and benzoic acid are the major contributions in Malvazia wines and 2-methylpropan-1-ol is associated to Sercial wines. Verdelho wines are most correlated with 5-(ethoxymethyl)-furfural, nonanone and cis-9-ethyldecenoate. A 96.4% of prediction ability was obtained by the application of stepwise linear discriminant analysis (SLDA) using the 19 variables that maximise the variance of the initial data set.pt_PT
dc.identifier.citationCâmara, J. S., Alves, M. A., & Marques, J. C. (2006). Multivariate analysis for the classification and differentiation of Madeira wines according to main grape varieties. Talanta, 68(5), 1512-1521.pt_PT
dc.identifier.doi10.1016/j.talanta.2005.08.012pt_PT
dc.identifier.urihttp://hdl.handle.net/10400.13/910
dc.language.isoengpt_PT
dc.peerreviewedyespt_PT
dc.publisherElsevierpt_PT
dc.subjectWinept_PT
dc.subjectVolatile compoundspt_PT
dc.subjectHS-SPME/GC-MS analysispt_PT
dc.subjectPCApt_PT
dc.subjectSLDApt_PT
dc.subject.pt_PT
dc.subjectFaculdade de Ciências Exatas e da Engenhariapt_PT
dc.subjectCentro de Química da Madeira
dc.titleMultivariate analysis for the classification and differentiation of Madeira wines according to main grape varietiespt_PT
dc.typejournal article
dspace.entity.typePublication
oaire.citation.endPage1521pt_PT
oaire.citation.startPage1512pt_PT
oaire.citation.titleTalantapt_PT
oaire.citation.volume68(5)pt_PT
person.familyNameCâmara
person.familyNameMarques
person.givenNameJosé
person.givenNameJose C
person.identifierG-3003-2013
person.identifier.ciencia-id481C-08CE-90E5
person.identifier.ciencia-id1713-6DA1-A551
person.identifier.orcid0000-0003-1965-3151
person.identifier.orcid0000-0002-4832-4341
person.identifier.ridF-3014-2010
person.identifier.scopus-author-id10140393000
person.identifier.scopus-author-id7203033313
rcaap.rightsopenAccesspt_PT
rcaap.typearticlept_PT
relation.isAuthorOfPublicatione10d78be-e547-4d25-92b5-06a997ed78da
relation.isAuthorOfPublication08f4685f-b917-410a-b153-59911ff7d75e
relation.isAuthorOfPublication.latestForDiscovery08f4685f-b917-410a-b153-59911ff7d75e

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