Please use this identifier to cite or link to this item: http://repositorio.ufla.br/jspui/handle/1/41890
Title: Avaliação fungitóxica do óleo essencial de de Tanaecium nocturnum (bar.Rodr.) Bur.e Shum sobre o Aspergillus flavus isolado da castanha-do-Brasil (Bertholetia excelsa)
Other Titles: Fungitoxic action of the essential oil of Tanaecium nocturnum (Barb. Rodr.) Bur. and K. Shum on Aspergillus flavus isolated from the Brazil nut (Bertholletia excelsa)
Keywords: Óleo essencial
Ação fungitóxica
Tanaecium nocturnum
Aspergillus flavus
Bertholletia excelsa
Essential oil
Fungitoxic action
Issue Date: Mar-2010
Publisher: Instituto Nacional de Pesquisas da Amazônia (INPA)
Citation: PIMENTEL, F. A. et al. Avaliação fungitóxica do óleo essencial de de Tanaecium nocturnum (bar.Rodr.) Bur.e Shum sobre o Aspergillus flavus isolado da castanha-do-Brasil (Bertholetia excelsa). Acta Amazonica, Manaus, v. 40, n. 1, p. 213-220, Mar. 2010. DOI: 10.1590/S0044-59672010000100027.
Abstract: The present work sought to evaluate the fungitoxic activity of the essential oil from fresh Tanaecium nocturnum fresh leaves on Aspergillus flavus isolated from Brazil nuts, using contact and fumigation techniques. The results of bioassays performed up to 10 days of incubation demonstrated that total inhibition of mycelial growth occurred when using the essential oil at concentrations of 782 ppm (contact technique) and 1000 ppm (fumigation technique). In both techniques, the essential oil inhibited the formation of spores at the concentration of 500 ppm. No significant difference in the results presented by the two techniques was observed in the first five days of incubation. After this period, the essential oil showed a reduction in activity at concentrations lower than 1000 ppm in the fumigation test. The fungitoxic activity of the essential oil on the organism studied can be attributed to the presence of benzaldehyde (major component of the essential oil), in combination with other compounds also present in this oil, such as, benzyl alcohol, benzyl benzoate and mandelonitrila.
URI: http://repositorio.ufla.br/jspui/handle/1/41890
Appears in Collections:DQI - Artigos publicados em periódicos



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