Antifungal properties of plants used in Brazilian traditional medicine against clinically relevant fungal pathogens

Johann, Susana; Pizzolatti, Moacir Geraldo; Donnici, Cláudio Luis; Resende, Maria Aparecida de

doi:10.1590/s1517-83822007000400010

Cited by 64 publications

(59 citation statements)

References 22 publications

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“…No que se refere a S. terebinthifolius, estudos realizados com o extrato etanólico proveniente das folhas dessa espécie vegetal também demonstraram a presença desse grupo de substâncias (Johann et al, 2007). Salientase ainda que Santos et al (2006) detectaram taninos condensados na casca do caule dessa espécie; entretanto, os autores não quantificaram esse metabólito.…”

Section: Resultsunclassified

Efeito de frações tânicas sobre parâmetros biológicos e nutricionais de Spodoptera frugiperda (Lepidoptera: Noctuidae)

et al. 2010

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RESUMOConduziu-se este trabalho, com o objetivo de quantificar taninos condensados presentes nas cascas do caule de Ochroma pyramidalis (Bombacaceae), Schinus terebinthifolius (Anacardiaceae), Enterolobium contortisiliquum (Fabaceae) e Peltophorum dubium (Fabaceae) e verificar o efeito de frações tânicas dessas espécies sobre parâmetros biológicos e nutricionais de S. frugiperda. A partir das cascas das espécies vegetais se prepararam extratos, dos quais alíquotas foram tomadas para a quantificação dos taninos. Em seguida, os extratos foram submetidos a fracionamento para a obtenção das frações tânicas, que foram incorporadas à dieta artificial e oferecidas para lagartas de S. frugiperda. Todas as espécies vegetais estudadas apresentaram taninos condensados, sendo que S. terebinthifolius apresentou menor quantidade desses compostos. A fração tânica de P. dubium causou redução no peso das lagartas e pupas, diminuição na sobrevivência de S. frugiperda durante as fases larval e pupal, e acarretou menor consumo alimentar, além de prolongar a duração das fases imaturas desse inseto. O tratamento com S. terebinthifolius causou redução na percentagem de sobrevivência, durante a fase de pupa. Pupas provenientes de lagartas que receberam tratamento com a fração de E. contortisiliquum tiveram aumento no seu período de desenvolvimento. Lagartas alimentadas com a fração proveniente de P. dubium apresentaram a menor taxa de crescimento relativo (RGR), menor eficiência de conversão do alimento digerido (ECD) e maior custo metabólico (CM). A digestibilidade aproximada (AD) foi maior para os tratamentos com as frações tânicas de P. dubium e S. terebinthifolius. Termos para indexação: Lagarta militar, taninos condensados, produtos naturais, controle. ABSTRACTThe objective of this study was to quantify condensed tannins present in the stem bark of Ochroma pyramidalis (Bombacaceae), Schinus terebinthifolius (Anacardiaceae), Enterolobium contortisiliquum (Fabaceae) and Peltophorum dubium (Fabaceae) and to verify the effect of tannic fractions of these species on biological and nutritional parameters of S. frugiperda. Extracts were prepared from the barks of the plant species and aliquots were taken from them to quantify the tannins. The extracts were then submitted to fractionation to obtain the tannic fractions, which ones were incorporated into an artificial diet and offered to the larvae of S. frugiperda. All the studied species showed condensed tannins, and S. terebinthifolius showed the lowest amount of these compounds. The tannin fraction of P. dubium caused a reduction in the weight of larvae and pupae, decreased the survival of S. frugiperda during the larval and pupal stages and led to a reduction of intake, beyond to extend the duration of immature stages of this insect. The treatment with S. terebinthifolius caused a reduction in the survival percentage during the pupal stage. Pupae from larvae that received the treatment with the fraction of E. contortisiliquum had an increase in its development period stage. Larvae fed...

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Section: Resultsunclassified

Efeito de frações tânicas sobre parâmetros biológicos e nutricionais de Spodoptera frugiperda (Lepidoptera: Noctuidae)

et al. 2010

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“…Saponins were observed by the appearance of blue, violet and yellow spots using 10% vanillin ethanol solution. Tannins were observed by the presence of bluish or greenish black after revelation with a 2% ferric chloride solution as described by Johanne et al [12]. Individual Rf for each spot was measured.…”

Section: E Tlc Bioautography Assaymentioning

confidence: 99%

Phytochemical Screening and Antibacterial Potentiality of Essential Oil from Psoralea corylifolia Linn.

Purkayastha¹,

Dahiya²

2012

IJBBB

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“…A broth microdilution method (Johann et al, 2007) using sterile flatbottom 96-well micro-titer plates was applied to carry out MIC assays. Briefly, fractions were tested at eight concentrations that varied from 1000 to 7.8 µg/ml while positive control clotrimazole concentrations varied from 25 to 0.195 µg/ml.…”

Section: Susceptibility Assaymentioning

confidence: 99%

Phytochemical screening and in vitro evaluation of anticandidal activity of Dodonaea viscosa (L.) Jaeq. (Sapindaceae)

Khurram¹,

Hameed²,

Amin³

et al. 2011

Afr. J. Pharm. Pharmacol.

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The activity of fractions derived from hydroalcoholic extract of Dodonaea viscosa leaves against Candida albicans (Cl. I. 4043) was evaluated. The hydroalcoholic extract was sequentially fractionated to give n-hexane, dichloromethane, ethylacetate and n-butanol fractions that were subjected to qualitative phytochemical analyses. Disk diffusion assay was used in preliminary anticandidal screening with clotrimazole and chloroform serving as positive and negative controls, respectively. Optimized solvent systems were used for thin layer chromatography (TLC) that was followed by contact bioautography to evaluate the bioactivities of the fractions. Using broth microdilution technique, minimum inhibitory concentrations (MIC) of the individual fractions were established. With the exception of aqueous fraction all the fractions exhibited anticandidal activities (zone of inhibition 10 mm) in preliminary screening against test yeast. However, n-hexane fraction showed two inhibition zones at R f = 0.14 and 0.60 in contact bioautography, which indicates location of inhibitory compounds. The MIC of 62.5 µg/ml also supports the presence of anticandidal moieties in n-hexane fraction. Flavonoids, terpenoids, tannins and steroids were the main metabolites indicated in phytochemical screenings.

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Antifungal properties of plants used in Brazilian traditional medicine against clinically relevant fungal pathogens

Cited by 64 publications

References 22 publications

Efeito de frações tânicas sobre parâmetros biológicos e nutricionais de Spodoptera frugiperda (Lepidoptera: Noctuidae)

Efeito de frações tânicas sobre parâmetros biológicos e nutricionais de Spodoptera frugiperda (Lepidoptera: Noctuidae)

Phytochemical Screening and Antibacterial Potentiality of Essential Oil from Psoralea corylifolia Linn.

Phytochemical screening and in vitro evaluation of anticandidal activity of Dodonaea viscosa (L.) Jaeq. (Sapindaceae)

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