Sabiia Seb
PortuguêsEspañolEnglish
Embrapa
        Busca avançada

Botão Atualizar


Botão Atualizar

Ordenar por: 

RelevânciaAutorTítuloAnoImprime registros no formato resumido
Registros recuperados: 4
Primeira ... 1 ... Última
Imagem não selecionada

Imprime registro no formato completo
Antioxidant flavonols from fruits, vegetables and beverages: measurements and bioavailability Biol. Res.
CROZIER,ALAN; BURNS,JENNIFER; AZIZ,AZLINA A; STEWART,AMANDA J; RABIASZ,HELENA S; JENKINS,GARETH I; EDWARDS,CHRISTINE A; LEAN,MICHAEL EJ.
Flavonols are polyphenolic secondary plant metabolites that are present in varying levels in commonly consumed fruits, vegetables and beverages. Flavonols have long held an interest for nutritionists, which has increased following a Dutch study in the early 1990’s showing that dietary intake of flavonols was inversely correlated with the incidence of coronary heart disease. The main factors that have hindered workers in the field of flavonol research are (i) the accurate measurement of these compounds in foods and biological samples, and (ii) a dearth of information on their absorption and metabolism. This review aims to highlight the work of the authors in attempting to clarify the situation. The sensitive and selective HPLC procedure to identify and...
Tipo: Journal article Palavras-chave: Bioavailability; Dietary antioxidants; Flavones; Flavonols; HPLC analysis.
Ano: 2000 URL: http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0716-97602000000200007
Imagem não selecionada

Imprime registro no formato completo
Flavonoids of Lonchocarpus montanus A.M.G. Azevedo and biological activity Anais da ABC (AABC)
Magalhães,Aderbal F.; Tozzi,Ana Maria G.A.; Magalhães,Eva G.; Sannomiya,Miriam; Soriano,Maria del Pilar C.; Perez,Mary A.F..
The analysis of root extracts from Lonchocarpus montanus A.M.G. Azevedo resulted in the isolation of twenty three compounds chiefly flavonoids of which five (four flavonoids and one benzophenone) are described for the first time. The molecular structures of the new compounds (1-5) were determined through spectral analysis (UV, IR, MS and NMR) as being: 2'-hydroxy-8-(<FONT FACE=Symbol>a,a</FONT>-dimethylallyl)-2", 2"-dimethylpyrano-(5",6":3',4')-dibenzoylmethane (1), 2'-methoxy-8-(<FONT FACE=Symbol>a, a</FONT>-dimethylallyl)-2", 2"-dimethylpyrano-(5",6":3',4')-dibenzoylmethane (2), 4'-methoxy-2",2"-dimethylpyrano-(5",6":8,7)-flavone (3), 2"-(1-hydroxy-1-methylethyl)-furano-(4",5":8,7)-flavone (4) and...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Lonchocarpus montanus A.M.G. Azevedo; Leguminosae; Dibenzoylmethanes; Flavonoids; Flavones; Benzophenone; Bioautography; Artemia salina lethality.
Ano: 2007 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0001-37652007000300001
Imagem não selecionada

Imprime registro no formato completo
Investigation on the in vitro antioxidant capacity of methanol extract, fractions and flavones from Oroxylum indicum Linn bark BJPS
Trang,Do Hoang Thu; Son,Hoang Le; Trung,Phung Van.
ABSTRACT Antioxidants from natural sources hold high values regarding their indispensible roles in the development of nutraceuticals, pharmaceuticals and cosmetic products. Oroxylum indicum L. is a common medicinal plant with a wide range of therapeutic properties, including a notable antioxidant potency that was reported, yet has not been subjected to more detailed studies. The present study evaluated the potency of Oroxylum indicum methanol stem bark extract, along with its hexane, ethyl acetate, methanol fractions, three flavones including baicalein, oroxylin A and chrysin using DPPH assay. In terms of IC50 values, the crude extract (65,48 μg/mL) exhibited moderate inhibitory activity which was as half potent as that of its ethyl acetate fraction (32,94...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Oroxylum indicum; Flavones; Methanol/extract; DPPH assay; Antioxidants; Inhibitory Concentration 50; Bignoniaceae..
Ano: 2018 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1984-82502018000100619
Imagem não selecionada

Imprime registro no formato completo
New flavone and other compounds from Tephrosia egregia: assessing the cytotoxic effect on human tumor cell lines. Repositório Alice
TEIXEIRA, M. V. S.; LIMA, J. Q.; PIMENTA, A. T. A.; SILVA, F. R. L.; OLIVEIRA, M. C. F. O.; PEREIRA, I. G.; JUNIOR, D. C. C.; RIBEIRO, P. R. V.; SANTIAGO, G. M. P.; LIMA, M. A. S.; BRAZ-FILHO, R.; BEZERRA, M. M.; MONTENEGRO, R. C.; ROCHA, D. D.; MORAES, M. E. A. de; MEDEIROS, A. C.; ARRIAGA, A. M. C..
Tipo: Artigo de periódico Palavras-chave: Células; Tumor; Tephrosia; Flavones; Cytotoxicity.
Ano: 2018 URL: http://www.alice.cnptia.embrapa.br/alice/handle/doc/1104510
Registros recuperados: 4
Primeira ... 1 ... Última
 

Empresa Brasileira de Pesquisa Agropecuária - Embrapa
Todos os direitos reservados, conforme Lei n° 9.610
Política de Privacidade
Área restrita

Embrapa
Parque Estação Biológica - PqEB s/n°
Brasília, DF - Brasil - CEP 70770-901
Fone: (61) 3448-4433 - Fax: (61) 3448-4890 / 3448-4891 SAC: https://www.embrapa.br/fale-conosco

Valid HTML 4.01 Transitional