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 | Acesso ao texto completo restrito à biblioteca da Embrapa Semiárido. Para informações adicionais entre em contato com cpatsa.biblioteca@embrapa.br. |
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Biblioteca(s): |
Embrapa Semiárido. |
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Data corrente: |
09/01/2018 |
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Data da última atualização: |
09/01/2018 |
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Tipo da produção científica: |
Artigo em Periódico Indexado |
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Autoria: |
OLIVEIRA, W. P. de; BIASOTO, A. C. T.; MARQUES, V. F.; SANTOS, I. M. dos; MAGALHÃES, K.; CORREA, L. C.; NEGRO-DELLACQUA. M.; MIRANDA, M. S.; CAMARGO, A. C. de; SHAHIDI, F. |
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Afiliação: |
WALKIA POLLIANA DE OLIVEIRA, UFBA; ALINE TELLES BIASOTO MARQUES, CPATSA; VALQUIRIA FERNANDA MARQUES, UNIVASF; IEDA MARIA DOS SANTOS, UNIVASF; KEDMA MAGALHAES, UNIVASF; LUIZ CLAUDIO CORREA, CPATSA; MELISSA NEGRO-DELLACQUA, UFSC; MARIA SPINOLA MIRANDA, UFBA; ADRIANO COSTA DE CAMARGO, Memorial University of Newfoundland St. John’s, NL, Canada; FEREIDOON SHAHIDI, Memorial University of Newfoundland St. John’s, NL, Canada. |
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Título: |
Phenolics from winemaking by-products better decrease VLDL-cholesterol and triacylglycerol levels than those of red wine in wistar rats. |
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Ano de publicação: |
2017 |
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Fonte/Imprenta: |
Journal of Food Science, v, 82, n. 10, p. 2432-2437, 2017. |
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DOI: |
10.1111/1750-3841.13841 |
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Idioma: |
Inglês |
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Conteúdo: |
Winemaking by-products account for more than 30% of the grape production, but this inexpensive feedstock has not yet been fully exploited. Accordingly, we evaluated the potential biological activity of winemaking by-products produced with Syrah grapes in comparison with those of the wine produced using the same grape cultivar. Winemaking by-products showed higher contents of total anthocyanins, flavonols, stilbenes, and flavanols than red wine as evaluated by HPLC-DAD-FD (on a dry weight basis). In contrast, red wine was a better source of phenolic acids. However, the contribution of phenolic acids was minor for both samples. Furthermore, equivalent concentration of winemaking by-products (100 mg/kg/d) showed greater biological activity by than that of red wine by decreasing the levels of VLDL- cholesterol and triacylglycerols in Wistar rats. Therefore, this study supports the use of winemaking by-products as an economical source of bioactive phenolics with potential use in the food and nutraceutical industries |
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Palavras-Chave: |
Bebidas funcionais; Cardiovascular disease; Compostos bioativos; Doenças cardiovasculares; Functional beverage; Processing by-products; Sub-produto. |
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Thesagro: |
Processamento; Uva; Vitis Vinifera. |
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Thesaurus Nal: |
Bioactive compounds; Grapes. |
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Categoria do assunto: |
X Pesquisa, Tecnologia e Engenharia |
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Marc: |
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Embrapa Semiárido (CPATSA) |
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Registro Completo
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Biblioteca(s): |
Embrapa Soja. |
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Data corrente: |
11/12/2003 |
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Data da última atualização: |
21/11/2005 |
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Autoria: |
GERMANO, M. G.; HUNGRIA, M. |
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Título: |
Ribosomal phylogeny of a brazilian collection of bradyrhizobium symbionts of thirty-three legume species. |
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Ano de publicação: |
2003 |
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Fonte/Imprenta: |
In: CONGRESSO BRASILEIRO DE MICROBIOLOGIA, 22., 2003, Florianópolis. [Resumos]. Florianópolis: Sociedade Brasileira de Microbiologia, 2003. |
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Descrição Física: |
1 CD-ROM. |
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Idioma: |
Português |
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Notas: |
Seção: Microbiologia de Solos. |
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Conteúdo: |
Many species of the family Leguminosae (Fabaceae) establish effective symbioses with N2-fixing bacteria in the genus Bradyrhizobium, which is relatively poorly studied despite wide geographic distribution and legume-host range. Genetic diversity seems to be greater in tropical than in temperate species of rhizobia, thus three ribosomal regions of a Brazilian culture collection of 119 strains of Bradyrhizobium, isolated from thirty-three legume species, representing nine tribes and all three subfamilies, were analyzed by RFLP-PCR. For the 16S rRNA gene, reference strains of B. japonicum fit into two major clusters, joined at a level of similarity of 50%, which included forty-seven strains, 90% of which were isolated from soybean, while two other clusters, joined at a similarity of 53%, were composed of strains of B. elkanii. Furthermore, three other major clusters were identified in which all strains were clustered at a final level of similarity of only 28%. For the intergenic spacer region (ITS), strains were clustered at a final level of similarity of 27%; reference strains of B. japonicum fit into a major group at 37% of similarity that included fifty-six strains, 84% isolated from soybean, while strains of B. elkanii fit into another major group, at a 44% level of similarity, clustering fifty-three strains, 64% isolated from other hosts than soybean. New clusters were also observed for the ITS region. The highest variability was detected in the analysis of the 23S rRNA gene with many distinct clusters and a very low level of similarity (16%) in the final grouping of the strains. A polyphasic approach, considering the three ribosomal regions, confirmed two great groups, related to B. japonicum and B. elkanii, at similarity levels of 54 and 46%, respectively. However, subclusters were defined within those two groups, and might be related to intraspecific variability, or to new subspecies, or even to new species. Furthermore, at least two new clusters were observed that might represent new species. The majority of strains isolated from soybean fit into the species B. japonicum, while most strains isolated from Brazilian legume species fit into B. elkanii or into the new clusters. The collection of bradyrhizobia analyzed in this study showed a genetic variability never reported before, confirming a high level of diversity of rhizobia in the tropics.
Partially financed by CNPq (PRONEX-and 520396/96-0). MenosMany species of the family Leguminosae (Fabaceae) establish effective symbioses with N2-fixing bacteria in the genus Bradyrhizobium, which is relatively poorly studied despite wide geographic distribution and legume-host range. Genetic diversity seems to be greater in tropical than in temperate species of rhizobia, thus three ribosomal regions of a Brazilian culture collection of 119 strains of Bradyrhizobium, isolated from thirty-three legume species, representing nine tribes and all three subfamilies, were analyzed by RFLP-PCR. For the 16S rRNA gene, reference strains of B. japonicum fit into two major clusters, joined at a level of similarity of 50%, which included forty-seven strains, 90% of which were isolated from soybean, while two other clusters, joined at a similarity of 53%, were composed of strains of B. elkanii. Furthermore, three other major clusters were identified in which all strains were clustered at a final level of similarity of only 28%. For the intergenic spacer region (ITS), strains were clustered at a final level of similarity of 27%; reference strains of B. japonicum fit into a major group at 37% of similarity that included fifty-six strains, 84% isolated from soybean, while strains of B. elkanii fit into another major group, at a 44% level of similarity, clustering fifty-three strains, 64% isolated from other hosts than soybean. New clusters were also observed for the ITS region. The highest variability was detected in the analysis of the 23S rRNA ge... Mostrar Tudo |
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