Prospecção fitoquímica de Sonchus oleraceus e sua toxicidade sobre o microcrustáceo Artemia salina
نویسندگان
چکیده
منابع مشابه
Leaf-Cutting Ants Toxicity of Limonexic Acid and Degraded Limonoids from Raulinoa echinata. X-Ray Structure of Epoxy-fraxinellone
A investigação fitoquímica das raízes de Raulinoa echinata, planta endêmica do Vale do Itajaí/ SC, levou ao isolamento e identificação dos limonóides degradados: fraxinelona, fraxinelonona e epoxi-fraxinelona. O último foi anteriormente isolado dos caules, porém sua configuração relativa não foi resolvida por experimentos de RMN. Este trabalho apresenta a análise de difração de raios-X da epoxi...
متن کاملPotential Use of Silver Nanoparticles on Pathogenic Bacteria, their Toxicity and Possible Mechanisms of Action
As propriedades da prata são conhecidas há muitos anos. Recentemente, as nanopartículas de prata têm chamado a atenção por sua atividade antimicrobiana que oferece a possibilidade de uso com propósitos médicos e de higiene. Estas nanopartículas de prata em diferentes formulações, com diferentes formas e tamanhos, exibem atividades antimicrobianas diferentes. Entretanto, os mecanismos da ativida...
متن کاملComparison of the Nutritive Value, Antioxidant and Antibacterial Activities of Sonchus asper and Sonchus oleraceus
Many local vegetable materials are under-exploited because of inadequate scientific knowledge of their nutritional potentials. For this reason, the nutritional, phytochemical, antioxidant and antibacterial activities of the acetone, methanol and water extracts of the leaves of Sonchus asper and Sonchus oleraceus were investigated. The proximate analysis showed that the plants contained apprecia...
متن کاملAnti-ageing effects of Sonchus oleraceus L. (pūhā) leaf extracts on H₂O₂-induced cell senescence.
Antioxidants protect against damage from free radicals and are believed to slow the ageing process. Previously, we have reported the high antioxidant activity of 70% methanolic Sonchus oleraceus L. (Asteraceae) leaf extracts. We hypothesize that S. oleraceus extracts protect cells against H2O2-induced senescence by mediating oxidative stress. Premature senescence of young WI-38 cells was induce...
متن کاملThe antioxidant and cytotoxic activities of Sonchus oleraceus L. extracts
This study investigated in vitro antioxidant activity of Sonchus oleraceus L. by extraction solvent, which were examined by reducing power, hydroxyl radical-scavenging activity(HRSA) and 1, 1-diphenyl-2-picrylhydrazyl (DPPH) radical scavenging assays. 70% MeOH extract had the greatest reducing power while EtOH extract had the greatest HRSA. The antioxidant activity of S. oleraceus extracts was ...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: Planta Daninha
سال: 2009
ISSN: 0100-8358
DOI: 10.1590/s0100-83582009000100002