Data/hora: 03/06/2024 12:58:53

Biblioteca(s): | Embrapa Uva e Vinho.
Tipo da produção científica: | Artigo em Anais de Congresso
Data corrente: | 25/11/2011
Data da última atualização: | 28/11/2011
Autoria: | BORGES, R. de S.; ROBERTO, S. R.; SILVA, G. A. da.
Afiliação: | ROGERIO DE SA BORGES, SNTEEN Londrina; Sergio Ruffo Roberto, Universidade Estadual de Londrina; GILDO ALMEIDA DA SILVA, CNPUV.
Título: | Polyphenols and antioxidants in grape juices obtained from clones of concord grape.
Ano de publicação: | 2011
Fonte/Imprenta: | In: WORLD CONGRESS OF VINE AND WINE, 34.; GENERAL ASSEMBLY OF OIV, 9., 2011, Porto. The Construction of wine: conspiracy of knowledge and art: proceedings. Lisboa: Um Porto para o Mundo, 2011.
Páginas: | 6 p.
Descrição Física: | 1 CD-ROM.
Idioma: | Inglês
Conteúdo: | The aim of this study was to investigate the differences between grape juices produced from different clones of Concord grapes in its total polyphenols content and antioxidant capacity. Six clones of the Concord cultivar (Vitis labrusca) were evaluated on three rootstocks (IAC 766, IAC 572 and 420-A). For both variables, significant interactions between clones of Concord and rootstocks were observed, The content of total polyphenols ranged from 990.03 to 2011.87 mgL-1 and antioxidant capacity from 5524.72 to 11646.46 &#956;M (EqTrolox), from the combinations 28/IAC 572 and clone 22/420-A, respectively. A relative positive correlation were observed between levels of total polyphenols and antioxidant activity (r=0.8732). It is concluded that different clones of Concord interact with the rootstocks, causing significant differences between treatments for concentrations of total polyphenols and antioxidant capacity. The results show that it is possible to improve the content of total polyphenols and antioxidant activity of Concord grape juice depending on the combination between the scion clone and the rootstock.
Palavras-Chave: | Concord; Polifenol.
Thesagro: | Análise química; Clone; Suco; Uva; Variedade; Viticultura.
Categoria do assunto: | --
Registro original: | Embrapa Uva e Vinho (CNPUV)
Exemplares: | CNPUV - (13434-1) - UPC - AA - CD - CD00255 -  -  - DIS