Atividade moluscicida de alguns produtos naturais sobre Biomphalaria glabrata

Mendes, Nelymar Martineli; Souza, Cecília Pereira de; Araújo, Neusa; Pereira, José Paulo; Katz, Naftale

doi:10.1590/s0074-02761986000100012

Cited by 14 publications

(7 citation statements)

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“…Its flower and stem bark extracts have shown molluscicidal activity (Mendes et al, 1986). Hypoglycemic, anti-HIV and antimalarial activities were also observed for stem bark extracts (Makinde et al, 1988;Niyonzima et al, 1999).…”

Section: Introductionmentioning

confidence: 97%

“…The extracts reduced the peroxidation of bovine brain extract and protected MRC-5 cells from hydrogen peroxide-induced oxidant injury (Mensah et al, 2006). In the present study, the possible metal chelating and/or complexation effects of Spathodea campanulata flower and bark ethanol extracts were investigated for their possible antioxidant mechanisms.…”

Section: Introductionmentioning

confidence: 97%

“…This species is largely used in traditional medicine; its flowers are used as diuretic and anti-inflammatory, while its leaves are used against kidney diseases, urethra inflammation and as antidote against animal venoms. Stem bark preparations are used against f ungal skin diseases, herpes, stomachache and diarrhea (Mendes et al, 1986).…”

Section: Introductionmentioning

confidence: 99%

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Antioxidant activity of Spathodea campanulata (Bignoneaceae) extracts

Braz-Filho

Cecchini

2012

Rev. bras. plantas med.

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Spathodea campanulata is used in traditional medicine in Africa as diuretic and antiinflammatory. Although few studies have reported the mechanism of antioxidant action, this study evidenced the antioxidant activity of S. campanulata bark and flower extracts and their possible mechanism of action. Ethanol extracts of S. campanulata bark and flowers showed antioxidant activity on lipid peroxidation of liver microsome induced by Fe 3+ -ascorbic acid. Bark extract was 5 times more efficient than flower extract. The antioxidant activity of flower extract, previously complexed with increasing concentrations of Fe 3+ (20 -100 M) which resulted in antioxidant activity loss, was shown to be related to iron complex formation. In contrast, the antioxidant activity of bark extract was not inhibited by the previous incubation with Fe 3+ , although complexation was demonstrated by spectral analysis of the solution. These results suggest an antioxidant mechanism other than Fe 3+ complex formation. Therefore, the antioxidant mechanisms of S. campanulata flower and bark extracts are distinct from each other, reflecting the extract heterogeneous composition and the mechanism of action.Key words: Spathodea campanulata, antioxidant, lipidperoxidation, bark extract, flower extract RESUMO: Atividade antioxidante de extratos de Spathodea campanulata (Bignoneaceae).Spathodea campanulata é usada na medicina popular na África como diurético e antiinflamatório. Embora poucos estudos relatem o mecanismo de ação antioxidante, neste trabalho foi evidenciado a atividade antioxidante dos extratos da casca e da flor da S. campanulata e o possível mecanismo de ação. Os extratos etanólicos da casca e da flor da S. campanulata mostrou possuir atividade antioxidante sobre a lipoperoxidação de microssoma hepático induzida por Fe 3+ -ácido ascórbico. O extrato da casca foi 5 vezes mais eficiente que da flor. O extrato da flor foi previamente complexado com concentrações crescentes de Fe 3+ (20 -100 M) o qual resultou na perda da atividade antioxidante, demonstrando que esta está relacionada com a formação de complexo com o ferro. Por outro lado, a atividade antioxidante do extrato da casca não foi inibida pela prévia incubação com o ferro, embora haja a formação do complexo evidenciado pela análise espectral da solução. Estes resultados sugerem que o mecanismo antioxidante seja outro que não a complexação com o Fe 3+ . Portanto, o mecanismo antioxidante dos extratos da flor e da casca da S. campanulata é distinto entre si o que reflete a composição heterogênica do extrato e o mecanismo de ação.

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Section: Introductionmentioning

confidence: 97%

Section: Introductionmentioning

confidence: 97%

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Antioxidant activity of Spathodea campanulata (Bignoneaceae) extracts

Braz-Filho

Cecchini

2012

Rev. bras. plantas med.

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“…The stem barks contain Spathodic acid, steroids, saponins, ursolic acid, tomentosolic acid and pectic substances [16][17][18][19]. The molluscicidal activity was shown by flowers and stem bark extracts [20]. These are also used to treat diuretic and anti-inflammatory [21].…”

Section: Introductionmentioning

confidence: 99%

Spathodea campanulata bud fluid reinforced mechanical, hydrophilicity and degradation studies of poly (vinyl alcohol) matrix

et al. 2020

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The present study aims to scrutinize the influence of Spathodea campanulata (SC) bud fluid on various properties of PVA. The different volumes of SC bud fluid doped PVA films were prepared by the solvent evaporation technique and analyzed by various characterization techniques. The molecular interactions of PVA with SC bud fluid was confirmed by FTIR studies. Tensile properties such as tensile strength and Young's modulus increased from 48 ± 4 to 59 ± 10 and 2069 ± 110 to 2537 ± 404 MPa respectively compared to PVA. The DSC measurements of prepared films depicted an increased glass transition temperature than PVA. The thermal stability of composite films was not affected compared to the pristine PVA. The XRD results of all the films represented a semi-crystalline material with a characteristic peak at 2θ = 20°. The morphology studies revealed the homogeneous surface due to the good dispersion of SC bud fluid. The water contact angle findings shown the composite films were hydrophilic. Composite film solubility in water increased after the incorporation of SC bud fluid. The water vapor transmission rate of composite films were assessed. The Soil Burial tests indicated the degradation rate of PVA increased in composite films due to increased hydrophilicity.

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“…The stem bark preparations are employed against enemas, fungus skin diseases, herpes, stomachaches and diarrhea (JARDIM;MENDONÇA;FERREIRA, 2003;MENDES et al, 1986).…”

Section: Introductionmentioning

confidence: 99%

Iridóide glicosilado e derivados fenólicos antifúngicos isolados das raízes de Spathodea campanulata

et al. 2007

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The chemical study of Spathodea campanulata (Bignoniaceae) roots peels afforded an iridoid glucoside (ajugol) and two phenolic derivatives (p-hydroxy-benzoic acid and methyl p-hydroxy-benzoate). The compounds were characterized upon spectral data interpretation. Bioactivities of the constituents were evaluated against fungus Cladosporium herbarum. Key words: Spathodea campanulata, ajugol, phenolic compounds, Cladosporium herbarum ResumoO estudo químico das cascas das raízes de Spathodea campanulata (Bignoniaceae) conduziu ao isolamento de um irióide glicosilado (ajugol) e dois derivados fenólicos (ácido p-hidroxi-benzóico e p-hidroxi-benzoato de metila). Os compostos foram identificados com base na interpretação dos seus dados espectrais. A atividade biológica destes constituintes foi avaliada contra o fungo Cladosporium herbarum.

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Atividade moluscicida de alguns produtos naturais sobre Biomphalaria glabrata

Cited by 14 publications

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Antioxidant activity of Spathodea campanulata (Bignoneaceae) extracts

Antioxidant activity of Spathodea campanulata (Bignoneaceae) extracts

Spathodea campanulata bud fluid reinforced mechanical, hydrophilicity and degradation studies of poly (vinyl alcohol) matrix

Iridóide glicosilado e derivados fenólicos antifúngicos isolados das raízes de Spathodea campanulata

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