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Registro Completo |
Biblioteca(s): |
Embrapa Semiárido; Embrapa Unidades Centrais. |
Data corrente: |
15/02/2007 |
Data da última atualização: |
15/02/2007 |
Autoria: |
ARAÚJO NETO, R. B. de. |
Título: |
Silo cincho: uma alternattiva para conservação de forragem. |
Ano de publicação: |
2000 |
Fonte/Imprenta: |
Teresina: Embrapa Meio-Norte, 2000. |
Páginas: |
2 p. |
Série: |
(Embrapa Meio-Norte. Instruções técnicas, 2). |
Idioma: |
Português |
Conteúdo: |
Silagem; Silo cincho; Processo da ensilagem utilizando o silo cincho. |
Palavras-Chave: |
Conservation; Fodder. |
Thesagro: |
Conservação; Forragem; Silo. |
Thesaurus Nal: |
Forage; silos. |
Categoria do assunto: |
-- L Ciência Animal e Produtos de Origem Animal |
Marc: |
LEADER 00636nam a2200217 a 4500 001 1120441 005 2007-02-15 008 2000 bl uuuu u0uu1 u #d 100 1 $aARAÚJO NETO, R. B. de 245 $aSilo cincho$buma alternattiva para conservação de forragem. 260 $aTeresina: Embrapa Meio-Norte$c2000 300 $a2 p. 490 $a(Embrapa Meio-Norte. Instruções técnicas, 2). 520 $aSilagem; Silo cincho; Processo da ensilagem utilizando o silo cincho. 650 $aForage 650 $asilos 650 $aConservação 650 $aForragem 650 $aSilo 653 $aConservation 653 $aFodder
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Registro original: |
Embrapa Unidades Centrais (AI-SEDE) |
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Registro Completo
Biblioteca(s): |
Embrapa Amazônia Oriental. |
Data corrente: |
30/08/2017 |
Data da última atualização: |
22/12/2021 |
Tipo da produção científica: |
Artigo em Periódico Indexado |
Circulação/Nível: |
A - 2 |
Autoria: |
FIDELIS, Q. C.; CASTRO, R. N.; GUILHON, G. M. S. P.; RODRIGUES, S. T.; SALLES, C. M. C. de; SALLES, J. B. de; CARVALHO, M. G. de. |
Afiliação: |
Queli C. Fidelis, Universidade Federal Rural do Rio de Janeiro; Rosane N. Castro, Universidade Federal Rural do Rio de Janeiro; Giselle M. S. P. Guilhon, UFPA; SILVANE TAVARES RODRIGUES, CPATU; Cristiane M. C. de Salles, Universidade Federal Rural do Rio de Janeiro; João B. de Salles, UEZO; Mario G. de Carvalho, Universidade Federal Rural do Rio de Janeiro. |
Título: |
Flavonoids and other compounds from Ouratea ferruginea (Ochnaceae) as anticancer and chemopreventive agents. |
Ano de publicação: |
2012 |
Fonte/Imprenta: |
Molecules, v. 17, n. 7, p. 7989-8000, 2012. |
Idioma: |
Inglês |
Conteúdo: |
The chemical study of the extracts from leaves and stems of Ouratea ferruginea allowed the identification of a new isoflavone, 5-hydroxy-7,3′4′5′-tetramethoxyisoflavone, and twenty two known compounds, including friedelin, 3β-friedelinol, lupeone, a mixture of sitosterol, stigmasterol and campesterol, sitosteryl- and stigmasteryl-3-O-b-D-glucopyranosides, 5,4′-dihydroxy-7,5′,3′-trimethoxyisoflavone, 5,4′-dihydroxy-7,3′-di-methoxyisoflavone (7,3′-di-O-methylorobol), 5,7,4′-trihydroxy-3′,5′-dimethoxyisoflavone (piscigenin), 2R,3R-epicatechin, syringic acid, 2,6-dimethoxybenzoquinone, 2,6-dimethoxyhydroquinone, syringic and ferulic aldehyde, a mixture of vanillic acid, 1-hydroxy-2-methoxy-4-(1E-3-hydroxy-1-propenyl)-benzene and 3,5-dimethoxy-4-hydroxy-dihydrocinamaldehyde, besides amenthoflavone and 7-O-methylamenthoflavone (sequoiaflavone) which are considered as chemotaxonomic markers of Ouratea. The structures were identified by IR, 1H- and 13C-NMR and GC-MS, HPLC-MS, besides comparison with literature data. The inhibitory effects of 5,4′-dihydroxy-7,5′,3′-trimethoxyisoflavone, 7,3′-di-O-methylorobol, piscigenin and 7-O-methylamenthoflavone on cytochrome P450-dependent 7-ethoxycoumarin O-deethylase (ECOD) and glutathione S-transferase (GST) were evaluated in vitro. The 5,4′-dihydroxy-7,5′,3′-trimethoxy-isoflavone was the best inhibitor, inhibiting almost 75% of GST activity. Sequoiaflavone was the most potent inhibitor, inhibiting ECOD assay in 75%. These activities allow us to consider both these flavonoids as potential anticancer and chemopreventive agents. MenosThe chemical study of the extracts from leaves and stems of Ouratea ferruginea allowed the identification of a new isoflavone, 5-hydroxy-7,3′4′5′-tetramethoxyisoflavone, and twenty two known compounds, including friedelin, 3β-friedelinol, lupeone, a mixture of sitosterol, stigmasterol and campesterol, sitosteryl- and stigmasteryl-3-O-b-D-glucopyranosides, 5,4′-dihydroxy-7,5′,3′-trimethoxyisoflavone, 5,4′-dihydroxy-7,3′-di-methoxyisoflavone (7,3′-di-O-methylorobol), 5,7,4′-trihydroxy-3′,5′-dimethoxyisoflavone (piscigenin), 2R,3R-epicatechin, syringic acid, 2,6-dimethoxybenzoquinone, 2,6-dimethoxyhydroquinone, syringic and ferulic aldehyde, a mixture of vanillic acid, 1-hydroxy-2-methoxy-4-(1E-3-hydroxy-1-propenyl)-benzene and 3,5-dimethoxy-4-hydroxy-dihydrocinamaldehyde, besides amenthoflavone and 7-O-methylamenthoflavone (sequoiaflavone) which are considered as chemotaxonomic markers of Ouratea. The structures were identified by IR, 1H- and 13C-NMR and GC-MS, HPLC-MS, besides comparison with literature data. The inhibitory effects of 5,4′-dihydroxy-7,5′,3′-trimethoxyisoflavone, 7,3′-di-O-methylorobol, piscigenin and 7-O-methylamenthoflavone on cytochrome P450-dependent 7-ethoxycoumarin O-deethylase (ECOD) and glutathione S-transferase (GST) were evaluated in vitro. The 5,4′-dihydroxy-7,5′,3′-trimethoxy-isoflavone was the best inhibitor, inhibiting almost 75%... Mostrar Tudo |
Palavras-Chave: |
Agentes quimiopreventivos; Biflavonoides; Isoflavonas. |
Categoria do assunto: |
W Química e Física |
URL: |
https://ainfo.cnptia.embrapa.br/digital/bitstream/item/163259/1/molecules-17-07989.pdf
|
Marc: |
LEADER 02407naa a2200229 a 4500 001 2074725 005 2021-12-22 008 2012 bl uuuu u00u1 u #d 100 1 $aFIDELIS, Q. C. 245 $aFlavonoids and other compounds from Ouratea ferruginea (Ochnaceae) as anticancer and chemopreventive agents.$h[electronic resource] 260 $c2012 520 $aThe chemical study of the extracts from leaves and stems of Ouratea ferruginea allowed the identification of a new isoflavone, 5-hydroxy-7,3′4′5′-tetramethoxyisoflavone, and twenty two known compounds, including friedelin, 3β-friedelinol, lupeone, a mixture of sitosterol, stigmasterol and campesterol, sitosteryl- and stigmasteryl-3-O-b-D-glucopyranosides, 5,4′-dihydroxy-7,5′,3′-trimethoxyisoflavone, 5,4′-dihydroxy-7,3′-di-methoxyisoflavone (7,3′-di-O-methylorobol), 5,7,4′-trihydroxy-3′,5′-dimethoxyisoflavone (piscigenin), 2R,3R-epicatechin, syringic acid, 2,6-dimethoxybenzoquinone, 2,6-dimethoxyhydroquinone, syringic and ferulic aldehyde, a mixture of vanillic acid, 1-hydroxy-2-methoxy-4-(1E-3-hydroxy-1-propenyl)-benzene and 3,5-dimethoxy-4-hydroxy-dihydrocinamaldehyde, besides amenthoflavone and 7-O-methylamenthoflavone (sequoiaflavone) which are considered as chemotaxonomic markers of Ouratea. The structures were identified by IR, 1H- and 13C-NMR and GC-MS, HPLC-MS, besides comparison with literature data. The inhibitory effects of 5,4′-dihydroxy-7,5′,3′-trimethoxyisoflavone, 7,3′-di-O-methylorobol, piscigenin and 7-O-methylamenthoflavone on cytochrome P450-dependent 7-ethoxycoumarin O-deethylase (ECOD) and glutathione S-transferase (GST) were evaluated in vitro. The 5,4′-dihydroxy-7,5′,3′-trimethoxy-isoflavone was the best inhibitor, inhibiting almost 75% of GST activity. Sequoiaflavone was the most potent inhibitor, inhibiting ECOD assay in 75%. These activities allow us to consider both these flavonoids as potential anticancer and chemopreventive agents. 653 $aAgentes quimiopreventivos 653 $aBiflavonoides 653 $aIsoflavonas 700 1 $aCASTRO, R. N. 700 1 $aGUILHON, G. M. S. P. 700 1 $aRODRIGUES, S. T. 700 1 $aSALLES, C. M. C. de 700 1 $aSALLES, J. B. de 700 1 $aCARVALHO, M. G. de 773 $tMolecules$gv. 17, n. 7, p. 7989-8000, 2012.
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