Polyphenolic Profile and Antioxidant Activity of Whole Grape Juices from Vitis labrusca and Brazilian Hybrid Grapes in Two Training Systems

Autor(es)

Domingues Neto, Francisco Jose ; Pimentel, Adilson ; Borges, Cristine Vanz ; Rodrigues, Joao Domingos ; Figueira, Ricardo ; Moura, Mara Fernandes ; Minatel, Igor Otavio ; Nunes, Aline ; Lima, Giuseppina Pace Pereira ; Tecchio, Marco Antonio

• Tipo de documento: Artigo Científico
• Fonte: ANTIOXIDANTS; v. 13, n. 9, p. 17-pg., 2024-09-01.

Resumo

The phenolic profile and antioxidant activity of whole grape juices from Vitis labrusca and Brazilian hybrids in two training systems were analyzed. Genotypes of V. labrusca ('Bord & ocirc;' and 'Isabel') and Brazilian hybrids ('IAC 138-22 M & aacute;ximo' and 'BRS Violeta') were grafted onto the rootstock 'IAC 766 Campinas' (106-8 'Mgt' x Vitis caribaea) and trained on low and high trellis. After harvest, the grapes were destemmed and the berries macerated in a roller crusher. Following hot extraction without pressurization of the pomace and gentle pressing of the blend (skins, must, and seeds), the juices were bottled in amber glass bottles and pasteurized. The physicochemical and colorimetric parameters of the juices, as well as the levels of flavonoids, phenolic compounds, total monomeric anthocyanins, antioxidant activity, and polyphenolic profile, were evaluated. The juices were also subjected to sensory analysis (CAAE: 65549817.7.0000.5411). There was broad variation in all assessed characteristics. The results obtained demonstrate that the training system and grape genotype used in juice production are highly related to the presence of sugars, acidity, and bioactive compounds. Juices made from 'Bord & ocirc;', 'IAC 138-22 M & aacute;ximo' and 'BRS Violeta' grapes stood out from 'Isabel' juices, the main grape variety used in Brazilian juice and wine production. All juices contain bioactive compounds in considerable concentrations, indicating beverages with high antioxidant activity and, consequently, high biological potential, with the use of high trellis in vine cultivation potentially increasing concentrations. (AU)

• Processo FAPESP: 16/07510-2 - Impactos de porta-enxertos e sistemas de condução no potencial agronômico, compostos bioativos e aminas biogênicas em uvas e sucos
• Beneficiário: Francisco José Domingues Neto
• Modalidade de apoio: Bolsas no Brasil - Doutorado
• Processo FAPESP: 23/03886-1 - Caracterização bioquímica da macroalga Kappaphycus alvarezii e sua ação em modelos biológicos: do campo à célula
• Beneficiário: Aline Nunes
• Modalidade de apoio: Bolsas no Brasil - Pós-Doutorado
• Processo FAPESP: 15/16440-5 - Fenologia, produção e qualidade pós-colheita de variedades de uvas para suco e vinho cultivadas em diferentes regiões no estado de são paulo
• Beneficiário: Marco Antonio Tecchio
• Modalidade de apoio: Auxílio à Pesquisa - Regular
• Processo FAPESP: 11/03440-6 - Comportamento de cultivares de uva para mesa e vinho sobre diferentes porta-enxertos
• Beneficiário: Marco Antonio Tecchio
• Modalidade de apoio: Auxílio à Pesquisa - Regular