Use of chemometrics to characterize tropical wines from different vintages and grape cultivars according to the 1H NMR spectroscopy data.

GOMES NETO, H.; HALLWASS, F.; SILVA, J. B. P. da; PEREIRA, G. E.

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Campo DC	Valor	Lengua/Idioma
dc.contributor.author	GOMES NETO, H.	pt_BR
dc.contributor.author	HALLWASS, F.	pt_BR
dc.contributor.author	SILVA, J. B. P. da	pt_BR
dc.contributor.author	PEREIRA, G. E.	pt_BR
dc.date.accessioned	2015-10-10T03:45:53Z	-
dc.date.available	2015-10-10T03:45:53Z	-
dc.date.created	2011-10-20	pt_BR
dc.date.issued	2011	pt_BR
dc.identifier.citation	In: INTERNATIONAL SYMPOSIUM OF THE GROUP OF INTERNATIONAL EXPERTS OF VITIVINICULTURAL SYSTEMS FOR COOPERATION, 17., 2011, Asti. Proceedings... Asti: Le Progrès Agricole et Viticole, 2011.	pt_BR
dc.identifier.uri	http://www.alice.cnptia.embrapa.br/alice/handle/doc/903539	pt_BR
dc.description	Tropical wines have been produced in Northeast of Brazil since 1980's, between the 8° and 9° S latitude, in a region called Sub-rniddle São Francisco river Valley. This area presents an intra-annual climate variability and wines can be elaborated in different months of the year, according to the winery, with different analytical characteristics due to the climatic conditions. NMR spectroscopy is an interesting tool that allows to determine in a single analysis many analytical compounds of the wines. PCA and PLS rnultivariate statistical analyses applied on NMR data allow to discriminate samples and to identify the responsible compounds for the clustering. The aim of this work was to use chemometrics, PCA and PLS, applied on IH NMR spectroscopy data, to characterize tropical wines from different vintages and grape cultivars, in Northeast of Brazil. Wines were elaborated by using traditional winemaking process with control of the fermentations temperature and use of antioxidants. Before statistical analyses, IHNMR spectra were segmented, normalized, converted to Excel software format and further processed for PCA and PLS analyses. Statistical analyses applied on NMR spectra data were not satisfactory to discriminate between different vintages of white and red wines together, but they were able to separate each one according to different vintages and cultivars. Metabolic compounds were found to explain wine clusters, and fingerprints are discussed.	pt_BR
dc.language.iso	eng	eng
dc.rights	openAccess	eng
dc.subject	Quimiometria	pt_BR
dc.title	Use of chemometrics to characterize tropical wines from different vintages and grape cultivars according to the 1H NMR spectroscopy data.	pt_BR
dc.type	Artigo em anais e proceedings	pt_BR
dc.date.updated	2015-10-10T03:45:53Z	pt_BR
dc.subject.thesagro	Uva	pt_BR
dc.subject.thesagro	Vinho	pt_BR
dc.subject.nalthesaurus	Grapes	eng
dc.format.extent2	p. 29-31.	pt_BR
riaa.ainfo.id	903539	pt_BR
riaa.ainfo.lastupdate	2015-10-09	pt_BR
dc.contributor.institution	HUMBERTO GOMES NETO, UFPE; FERNANDO HALLWASS, UFPE; JOÃO BOSCO PARAÍSO DA SILVA, UFPE; GIULIANO ELIAS PEREIRA, CNPUV / CPATSA.	pt_BR
Aparece en las colecciones:	Artigo em anais de congresso (CPATSA)

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