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 | Acesso ao texto completo restrito à biblioteca da Embrapa Amazônia Oriental. Para informações adicionais entre em contato com cpatu.biblioteca@embrapa.br. |
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Registro Completo |
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Biblioteca(s): |
Embrapa Amazônia Oriental. |
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Data corrente: |
13/10/2016 |
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Data da última atualização: |
24/05/2022 |
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Tipo da produção científica: |
Artigo em Periódico Indexado |
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Autoria: |
CARVALHO, A. V.; SILVEIRA, T. F. da; SOUSA, S. H. B. de; MORAES, M. R. de; GODOY, H. T. |
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Afiliação: |
ANA VANIA CARVALHO, CPATU; Tayse Ferreira da Silveira, UNICAMP; Sérgio Henrique Brabo de Sousa, UFPA; Maria Rosa de Moraes, UNICAMP; Helena Teixeira Godoy, UNICAMP. |
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Título: |
Phenolic composition and antioxidant capacity of bacaba-de-leque (Oenocarpus distichus Mart.) genotypes. |
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Ano de publicação: |
2016 |
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Fonte/Imprenta: |
Journal of Food Composition and Analysis, v. 54, p. 1-9, Dec. 2016. |
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DOI: |
http://dx.doi.org/10.1016/j.jfca.2016.09.013 |
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Idioma: |
Inglês |
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Conteúdo: |
Phenolic compound composition and antioxidant capacity of four Oenocarpus distichus Mart. (bacaba-de-leque) genotypes were determined. In order to set the parameters for phenolic compound extraction, the effect of methanol concentration and extraction time on the reducing power of the extracts was evaluated using the surface response methodology. The optimal conditions were: a 60:40 methanol:water (v/v) solution and 11 min of extraction. Extracts were analyzed by ultra-high performance liquid chromatography with diode array detection and by ultra-high performance liquid chromatography coupled to mass spectrometry. Eleven substances were identified, of which six were quantified. Rutin was the major compound in bacaba-de-leque genotypes (15.2?56.8 μg.g−1) followed by epicatechin (15.5?21.2 μg.g−1). The Black-03 genotype had the highest amounts of all phenolic compounds and the highest antioxidant capacity by DPPH and ORAC assays, indicating that this genotype may be selected in breeding programs to obtain cultivars with higher phenolic compound contents and antioxidant capacity. Moreover, the results indicated that bacaba-de-leque has great potential as a novel supplier of phenolic acids and flavonoids to human diet, with levels comparable to or higher than other fruits belonging to the same family, such as açaí. |
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Palavras-Chave: |
Análise de alimentos; Capacidade antioxidante. |
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Thesagro: |
Bacaba; Composição de Alimento. |
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Categoria do assunto: |
Q Alimentos e Nutrição Humana |
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Marc: |
LEADER 02116naa a2200229 a 4500
001 2054481
005 2022-05-24
008 2016 bl uuuu u00u1 u #d
024 7 $ahttp://dx.doi.org/10.1016/j.jfca.2016.09.013$2DOI
100 1 $aCARVALHO, A. V.
245 $aPhenolic composition and antioxidant capacity of bacaba-de-leque (Oenocarpus distichus Mart.) genotypes.$h[electronic resource]
260 $c2016
520 $aPhenolic compound composition and antioxidant capacity of four Oenocarpus distichus Mart. (bacaba-de-leque) genotypes were determined. In order to set the parameters for phenolic compound extraction, the effect of methanol concentration and extraction time on the reducing power of the extracts was evaluated using the surface response methodology. The optimal conditions were: a 60:40 methanol:water (v/v) solution and 11 min of extraction. Extracts were analyzed by ultra-high performance liquid chromatography with diode array detection and by ultra-high performance liquid chromatography coupled to mass spectrometry. Eleven substances were identified, of which six were quantified. Rutin was the major compound in bacaba-de-leque genotypes (15.2?56.8 μg.g−1) followed by epicatechin (15.5?21.2 μg.g−1). The Black-03 genotype had the highest amounts of all phenolic compounds and the highest antioxidant capacity by DPPH and ORAC assays, indicating that this genotype may be selected in breeding programs to obtain cultivars with higher phenolic compound contents and antioxidant capacity. Moreover, the results indicated that bacaba-de-leque has great potential as a novel supplier of phenolic acids and flavonoids to human diet, with levels comparable to or higher than other fruits belonging to the same family, such as açaí.
650 $aBacaba
650 $aComposição de Alimento
653 $aAnálise de alimentos
653 $aCapacidade antioxidante
700 1 $aSILVEIRA, T. F. da
700 1 $aSOUSA, S. H. B. de
700 1 $aMORAES, M. R. de
700 1 $aGODOY, H. T.
773 $tJournal of Food Composition and Analysis$gv. 54, p. 1-9, Dec. 2016.
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Registro original: |
Embrapa Amazônia Oriental (CPATU) |
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Voltar
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Registro Completo
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Biblioteca(s): |
Embrapa Unidades Centrais. |
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Data corrente: |
06/11/2007 |
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Data da última atualização: |
01/08/2018 |
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Autoria: |
FESSEL, S. A.; VIEIRA, R. D.; CRUZ, M. C. P. da; PAULA, R. C. de; PANOBIANCO, M. |
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Afiliação: |
Simone Aparecida Fessel, Universidade Estadual Paulista - Unesp/Departamento de Produção Vegetal; Roberval Daiton Vieira, Universidade Estadual Paulista - Unesp/Departamento de Produção Vegetal; Mara Cristina Pessoa da Cruz, Universidade Estadual Paulista - Unesp/Departamento de Solos e Adubos; Rinaldo Cesar de Paula, Universidade Estadual Paulista - Unesp/Departamento de Produção Vegetal; Maristela Panobianco, Universidade Estadual Paulista - Unesp/Departamento de Produção Vegetal. |
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Título: |
Electrical conductivity testing of corn seeds as influenced by temperature and period of storage. |
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Ano de publicação: |
2006 |
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Fonte/Imprenta: |
Pesquisa Agropecuária Brasileira, Brasília, DF, v. 41, n. 10, p. 1551-1559, out. 2006 |
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Idioma: |
Inglês |
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Notas: |
Título em português: Teste de condutividade elétrica em sementes de milho armazenadas sob diferentes temperaturas e períodos. |
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Conteúdo: |
The objective of this work was to evaluate the effects of temperature (10, 20, 30, 20/10 and 30/10ºC) and period of storage on electrical conductivity (EC) in four seed lots of corn (Zea mays L.), as well as the mineral composition of the soaking solution. EC test determines indirectly the integrity of seed membrane systems, and is used for the assessment of seed vigor, because this test detects the seed deterioration process since its early phase. The research comprised determinations of water content, germination, accelerated aging (AA), cold (CT) and EC vigor tests, and determinations of Ca2+, Mg2+ and K+ release to the solution, after seed soaking of four corn seed lots. The evaluations were performed each four months during a period of 16 months. For statistical analysis, a completely randomized split plot design was used with eight replications. Except for seed lots stored at 10ºC, all vigor evaluations revealed a decline in vigor, but AA and CT showed more sensitiveness to declines of seed physiological quality than EC. Potassium was the main leached ion regardless of the storage temperature. |
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Palavras-Chave: |
liberação de exsudatos; seed leachates. |
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Thesagro: |
Potássio; Zea Mays. |
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Thesaurus NAL: |
potassium; vigor. |
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Categoria do assunto: |
-- |
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URL: |
https://ainfo.cnptia.embrapa.br/digital/bitstream/item/107024/1/Electrical.pdf
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Marc: |
LEADER 01970naa a2200253 a 4500
001 1122457
005 2018-08-01
008 2006 bl uuuu u00u1 u #d
100 1 $aFESSEL, S. A.
245 $aElectrical conductivity testing of corn seeds as influenced by temperature and period of storage.
260 $c2006
500 $aTítulo em português: Teste de condutividade elétrica em sementes de milho armazenadas sob diferentes temperaturas e períodos.
520 $aThe objective of this work was to evaluate the effects of temperature (10, 20, 30, 20/10 and 30/10ºC) and period of storage on electrical conductivity (EC) in four seed lots of corn (Zea mays L.), as well as the mineral composition of the soaking solution. EC test determines indirectly the integrity of seed membrane systems, and is used for the assessment of seed vigor, because this test detects the seed deterioration process since its early phase. The research comprised determinations of water content, germination, accelerated aging (AA), cold (CT) and EC vigor tests, and determinations of Ca2+, Mg2+ and K+ release to the solution, after seed soaking of four corn seed lots. The evaluations were performed each four months during a period of 16 months. For statistical analysis, a completely randomized split plot design was used with eight replications. Except for seed lots stored at 10ºC, all vigor evaluations revealed a decline in vigor, but AA and CT showed more sensitiveness to declines of seed physiological quality than EC. Potassium was the main leached ion regardless of the storage temperature.
650 $apotassium
650 $avigor
650 $aPotássio
650 $aZea Mays
653 $aliberação de exsudatos
653 $aseed leachates
700 1 $aVIEIRA, R. D.
700 1 $aCRUZ, M. C. P. da
700 1 $aPAULA, R. C. de
700 1 $aPANOBIANCO, M.
773 $tPesquisa Agropecuária Brasileira, Brasília, DF$gv. 41, n. 10, p. 1551-1559, out. 2006
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Embrapa Unidades Centrais (AI-SEDE) |
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