La etapa de maduración de la uva influye en el contenido fenólico, el color y la capacidad antioxidante de los vinos tintos tropicales Touriga Nacional?

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dc.contributorERIKA SAMANTHA SANTOS DE CARVALHO, Instituto Federal de Educação, Ciência e Tecnologia do Sertão Pernambucano
dc.contributorGRACE DA SILVA NUNES, Instituto Federal de Educação, Ciência e Tecnologia do Sertão Pernambucano
dc.contributorANA PAULA ANDRÉ BARROS, Instituto Federal de Educação, Ciência e Tecnologia do Sertão Pernambucano
dc.contributorMARIA AUXILIADORA COELHO DE LIMA, CPATSA
dc.contributorEDNA SANTOS DE BARROS, CPATSA
dc.contributorSERGIO TONETTO DE FREITAS, CPATSA
dc.contributorALINE TELLES BIASOTO MARQUES, CPATSA
dc.contributorJANICE IZABEL DRUZIAN, UFBA.
dc.creatorCARVALHO, E. S. S. de
dc.creatorNUNES, G. da S.
dc.creatorBARROS, A. P. A.
dc.creatorLIMA, M. A. C. de
dc.creatorBARROS, E. S. de
dc.creatorFREITAS, S. T. de
dc.creatorBIASOTO, A. C. T.
dc.creatorDRUZIAN, J. I.
dc.date2020-02-04T18:17:18Z
dc.date2020-02-04T18:17:18Z
dc.date2019-12-20
dc.date2019
dc.date2020-02-04T18:17:18Z
dc.date.accessioned2026-07-07T05:55:47Z
dc.descriptionRipening corresponds to a stage in which several chemical and structural changes take place in the berry. Atypically, in the Northeast of Brazil, region known as the Submiddle Sao Francisco Valley, the semi-arid tropical climate, combined with the absence of winter and the availability of water for irrigation, makes it possible to scale production and harvest up to two crops throughout the year. Therefore, the objective of this study was to determine the content of total phenolic compounds, monomeric anthocyanins, antioxidant capacity (determined by the DPPH and ABTS methods), color and the total polyphenol index in red wines produced from Touriga Nacional (Vitis Vinífera L.) grapes harvested at different ripening stages. The experiment was carried out in a commercial Touriga Nacional vineyard located in Lagoa Grande, PE, Brazil (9°2'S, 40°11'O) with 360 drip irrigated plants cultivated in the overhead trellising system. The treatments corresponded to three different harvest dates, being arranged in a randomized complete block design with three plots. The grapes from each plot were vinified separately after being harvested at three different maturity stages that were reached at 106 days after pruning (DAP) at 12/07/2017, 113 DAP and 120 DAP. According to the results, Touriga Nacional red wine, made with grapes harvested at 120 DAP, presented significantly higher monomeric anthocyanin concentration (493.5 mg L-1), high antioxidant capacity according to the ABTS method (43.8 ?MolTE mL-1), as well as high color intensity evaluated spectrophotometrically (24.38) and total polyphenol index-TPI (72.1), compared with red wine made with grapes harvested at other ripening stages. According to the literature, these characteristics can increase the stability of red wine and improve its nutritional and sensory quality. In conclusion, harvest of ?Touriga Nacional? grapes at more advanced ripening stages (120 DAP) is recommended for red wine production in the Submiddle Sao Francisco Valley region, Brazil.
dc.formatp. 152-155.
dc.identifierIn: CONGRESO LATINOAMERICANO DE VITICULTURA Y ENOLOGIA, 16., 2019, Ica, Peru. Desierto: pasión vitivinícola en Latinoamérica. Ica: Asociacion Peruana de Enologos: Organización Internacional de la Viña y del Vino, 2019.
dc.identifierhttp://www.alice.cnptia.embrapa.br/alice/handle/doc/1117500
dc.identifier.urihttp://hdl.handle.net/123456789/502783
dc.languageeng
dc.rightsopenAccess
dc.subjectVinho tinto tropical
dc.subjectViticultura tropical
dc.subjectCompostos bioativos
dc.subjectVale do São Francisco
dc.subjectAnalise sensorial
dc.subjectCultivar Touriga Nacional
dc.subjectUva
dc.subjectComposto Fenólico
dc.subjectMaturação
dc.subjectVinho
dc.subjectVitis Vinifera
dc.subjectGrapes
dc.subjectVitis
dc.subjectBioactive compounds
dc.titleLa etapa de maduración de la uva influye en el contenido fenólico, el color y la capacidad antioxidante de los vinos tintos tropicales Touriga Nacional?
dc.typeArtigo em anais e proceedings

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