Scopoletin
Mostrando 1-12 de 44 artigos, teses e dissertações.
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1. Phyto- and Bio-Chemical evaluation of Diospyros kaki L. cultivated in Egypt and its biological activities
Resumo Diospyros kaki L. ou Costata é a principal variedade de caqui progressivamente consumida no mercado e exportação egípcia. O objetivo deste estudo foi investigar os efeitos bioprotetores do extrato alcoólico de frutos e folhas de D. kaki utilizando modelos de ratos “in vivo”. Extratos de éter de petróleo provenientes de frutos e folhas foram
Braz. J. Biol.. Publicado em: 05/08/2019
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2. Enhanced Accumulation of Scopoletin in Cell Suspension Culture of Spilanthes acmella Murr. Using Precursor Feeding
In this study, the various concentrations of casein hydrolysate (25, 50, 75, 100 mg/L) and L-phenylalanine (50, 100, 150, 200 µM/l) were incorporated in MS containing 15 µM BA plus 5 µM 2,4-D for enhancement of secondary metabolites in cell culture of Spilanthes acmella. The presence of casein hydrolysate in the nutrient medium improved the growth of cell
Braz. arch. biol. technol.. Publicado em: 29/04/2016
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3. Rapid validated high performance thin layer chromatography method for simultaneous estimation of mangiferin and scopoletin in Canscora decussata (South Indian Shankhpushpi) extract
AbstractMangiferin (polyphenolic xanthone) and scopoletin (phenolic coumarin) are well-studied biological markers present in Canscora decussata(Roxb.) Roem. & Schult., Gentianaceae. The objective set for the present studies is to establish and develop a new, simple, selective, sensitive, and precise high performance thin layer chromatography method for the s
Rev. bras. farmacogn.. Publicado em: 2015-06
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4. Constituintes químicos e avaliação das atividades antioxidante e anti-inflamatória das raízes de Sabicea brasiliensis wernh (Rubiaceae)
The phytochemical investigation of Sabicea brasiliensis roots led to the isolation of 5-O-caffeoylquinic acid, 3,5- and 4,5-O-dicaffeoylquinics acids, scopoletin, ursolic acid, a mixture of β-sitosterol, stigmasterol and campesterol, daucosterol and saccharose. The structures of the isolated compounds were assigned on the basis of one- and two-dimensional N
Quím. Nova. Publicado em: 2014
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5. ESTUDO DO EFEITO DA Malva sylvestris EM FIBROBLASTOS ESTIMULADOS POR LPS / Study of the effect of Malva sylvestris in fibroblasts stimulated with LPS.
The objective of this study was to develop biomonitoring of the hydroalcoholic extract of Malva sylvestris to evaluate the phytochemical profile beyond the effect of the hydroalcoholic extract of the plant on the release of IL-1β, TNF-α, LPS-induced nitric oxide, and finally, to assess possible toxicological effects of the extract. The activity of
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 28/02/2012
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6. Protective effect of Habenaria intermedia tubers against acute and chronic physical and psychological stress paradigms in rats
The present study was undertaken to evaluate the adaptogenic activity of ethanol (EtHI), ethyl acetate (EAHI) fractions of Habenaria intermedia D. Don, Orchidaceae (HI), tubers using immobilization induced acute stress (AS), chronic stress (CS) and swimming induced stress in experimental animals. The tested doses of EtHI (100 and 200 mg/kg, p.o.) and higher
Revista Brasileira de Farmacognosia. Publicado em: 08/03/2012
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7. Other compounds isolated from Simira glaziovii and the ¹H and 13C NMR chemical shift assignments of new 1-epi-castanopsol
A new triterpene, 1-epi-castanopsol, besides eleven known compounds: sitosterol, stigmasterol, campesterol, lupeol, lupenone, simirane B, syringaresinol, scopoletin, isofraxidin, 6,7,8-trimethoxycoumarin and harman, were isolated from the wood of Simira glaziovii. The structures of the known compounds were defined by 1D, 2D ¹H, 13C NMR spectra data analyses
Quím. Nova. Publicado em: 2012
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8. Fitoquímica e quimiossistemática de Conchocarpus marginatus e C. inopinatus (Rutaceae)
Phytochemical studies of the leaves and stem have led to the identification of the known acridone alkaloids arborinine, methyl-arborinine, 1-hydroxy-3-methoxy-N-methyl acridone, xanthoxoline, 1,2,3,5-tetramethoxy-N-methylacridone, toddaliopsin C and the new seco acridone alkaloid inopinatin. The known quinoline alkaloids 2-phenyl-1-methyl-quinolin-4(1H)-one,
Quím. Nova. Publicado em: 2012
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9. Chemical constituents of Rourea doniana
The chromatography fractionation of the hexane, chloroform and ethyl acetate extracts from the leaves and stems of Rourea doniana Baker, Connaraceae, resulted in the isolation of five triterpenes (lupeol, lupenone, α-amyrenone, β-amyrenone, and taraxerol), a flavonol (7,4'-dimethylkaempferol), a coumarin (scopoletin) and four phytosteroids (β-sitosterol,
Revista Brasileira de Farmacognosia. Publicado em: 05/12/2011
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10. Avaliacao do potencial alelopatico de genotipos de aveia no inicio do ciclo.
A aveia (avena spp.) e uma das culturas mais importantes do Sul do Brasil durante a estacao hibernal de crescimento. Sabe-se que nela existem agentes alelopaticos, o que torna conviniente o entendimento deste fenomeno na cultura. Neste trabalho, buscou-se realizar uma estimativa do potencial alelopatico com base na analise da fase inicial (estabelecimento) d
Pesquisa Agropecuaria Brasileira. Publicado em: 2011
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11. Constituintes químicos de Sebastiania macrocarpa Muell. Arg. (Euphorbiaceae)
The chemical investigation of the methanolic extract of the aerial part of Sebastiania macrocarpa allowed the isolation of the mixture of steroids β-sitosterol and stigmasterol, gallic acid, and scopoletin. The hexane extract of the roots allowed the isolation of the triterpene lupeol and of the macrociclic diterpene (+)-tonantzitlolone. The structures of a
Química Nova. Publicado em: 2009
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12. Constituintes químicos e atividade inseticida dos extratos de frutos de Trichilia elegans E T. catigua (Meliaceae)
Phytochemical investigation of the fruits extracts of Trichilia elegans and Trichilia catigua (Meliaceae) has led to the identification of the limonoids 11β-acetoxyobacunone, cedrelone, methylangolensate and epimeric mixture of photogedunin besides known coumarins (scoparone, scopoletin, umbeliferone) and the steroids stigmasterol, β-sitosterol, sitostenon
Química Nova. Publicado em: 2009