Use este identificador para citar ou linkar para este item: http://repositorio.ufla.br/jspui/handle/1/9711
Título : Evaluation of antifungal activity of essential oils against potentially mycotoxigenic Aspergillus flavus and Aspergillus parasiticus
Autor: Silva, Fernanda Chaves
Chalfoun, Sara Maria
Siqueira, Virgínia M.
Botelho, Deila M. dos S.
Lima, Nelson
Batista, Luís R.
Palavras-chave: Foeniculum vulgare
FUN-1
Fungi
Mentha piperita
Thymus vulgaris
Zingiber officinale
Publicador: Sociedade Brasileira de Farmacognosia
Data da publicação: 6-Fev-2011
Referência: SILVA, F. C. et al. Evaluation of antifungal activity of essential oils against potentially mycotoxigenic Aspergillus flavus and Aspergillus parasiticus. Revista Brasileira de Farmacognosia, Curitiba, v. 22, n. 5, p. 1002-1010, Sept. / Oct. 2012.
Abstract: The antifungal activity of essential oils of fennel (Foeniculum vulgare Mill., Apiaceae), ginger (Zingiber officinale Roscoe, Zingiberaceae), mint (Mentha piperita L., Lamiaceae) and thyme (Thymus vulgaris L., Lamiaceae) was evaluated against mycotoxin producers Aspergillus flavus and A. parasiticus. High Resolution Gas Chromatography was applied to analyze chemical constituents of essential oils. The effect of different concentrations of essential oils was determined by solid medium diffusion assay. Mycelial growth and sporulation were determined for each essential oil at the concentrations established by solid medium diffusion assay. At the fifth, seventh and ninth days the mycelial diameter (Ø mm) and spore production were also determined. FUN-1 staining was performed to assess cell viability after broth macrodilution assay. Trans-anethole, zingiberene, menthol and thymol are the major component of essential oils of fennel, ginger, mint and thyme, respectively. The effective concentrations for fennel, ginger, mint and thyme were 50, 80, 50 and 50% (oil/DMSO; v/v), respectively. The four essential oils analysed in this study showed antifungal effect. Additionally, FUN-1 staining showed to be a suitable method to evaluate cell viability of potential mycotoxigenic fungi A. flavus and A. parasiticus after treatment with essential oils.
URI: http://repositorio.ufla.br/jspui/handle/1/9711
Idioma: en
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