02160naa a2200409 a 450000100080000000500110000800800410001910000200006024501480008026000090022852009710023765000150120865000280122365000160125165000100126765000150127765000180129265000150131065000230132565000250134865000220137365000280139565000240142365000250144765000150147265300160148765300230150365300200152665300160154665300200156270000200158270000230160270000250162570000220165070000200167277300580169219856692021-07-06 2014 bl uuuu u00u1 u #d1 aLEITE, F. M. N. aIncidence of Aspergillus flavus, Aspergillus parasiticus and aflatoxins in Brazil nuts in the Amazon forest environment.h[electronic resource] c2014 aThis work aimed to evaluate, in the Amazon Forest environment, the effect of time on contamination of Brazil nuts with Aspergillus flavus, Aspergillus parasiticus and aflatoxins after falling of the pods. Samples were collected at three different times and analysed for water activity, potentially aflatoxigenic fungi A. flavus and A. parasiticus, other fungi and aflatoxins. The mean values for the parameters tested were: water activity 0.98; A. flavus and A. parasiticus 1.3×10 1 colony forming units (cfu)/g; other fungi 3.2×10 3 cfu/g; aflatoxin B1 0.073 ug/kg, aflatoxin B2 0.009 ug/kg, aflatoxin G1 0.034 ug/kg and aflatoxin G2 0.007 ug/kg. The incidence of A. flavus and A. parasiticus was not significantly affected by the time, during which the pods were on the forest soil. Moreover, aflatoxins levels were low during the whole study period, suggesting that adverse forest conditions were not the main factor that stimulate the production of aflatoxins. aAflatoxins aAspergillus parasiticus aBrazil nuts aFungi aMycotoxins aTropical wood aAflatoxina aAspergillus flavus aBertholletia excelsa aCastanha do pará aContaminação fúngica aEssência florestal aFator de crescimento aMicotoxina aAflatoxinas aCastanha do brasil aMadera tropical aMicotoxinas aNuez del Brasil1 aSOUZA, M. L. de1 aSOUZA, J. M. L. de1 aCARTAXO, C. B. da C.1 aALVARES, V. de S.1 aCUNHA, C. R. da tWorld Mycotoxin Journalgv. 7, n. 2, p.199-205, 2014.