Fitoquimica das partes aereas especie vegetal Guettarda pohliana

Testa Glaucio

Fitoquimica das partes aereas especie vegetal Guettarda pohliana
Format
Paperback
Publisher
Novas Edicoes Academicas
Country
United States
Published
28 July 2014
Pages
140
ISBN
9783639684599

Fitoquimica das partes aereas especie vegetal Guettarda pohliana

Testa Glaucio

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O estudo fitoquimico das folhas e galhos de Guettarda pohliana resultou no isolamento e identificacao de treze substancias: os esteroides sitosterol, estigmasterol e daucosterol, os triterpenos acido ursolico, acido oleanolico, acido pomolico, acido rotundico, acido 3 ,6 ,19 ,23-tretaidroxiurs-12-en-28-oico e acido cletrico, o isoprenoide loliolida, o secoiridoide secoxiloganina e acido 5-O-cafeoilquinico. Os esteroides sitosterol, estigmasterol e 24 -metil-colesta-5-enol, os triterpenos acido oleanolico e acido cletrico e o isoprenoide loliolida sao descritos pela primeira vez no genero. As substancias daucosterol e secoxloganina ja haviam sido isoladas das raizes de G. pohliana. Os testes de atividade antitumoral in vitro mostraram que algumas fracoes da planta foram ativas contra algumas das linhagens de celulas tumorais testadas.A avaliacao de atividade anti-inflamatoria topica mostrou que o extrato bruto e fracoes das folhas e a fracao acetato de etila dos galhos foram capazes de inibir o processo inflamatorio induzido por oleo de croton em camundongos.

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