Data/hora: 22/06/2024 19:37:49

Biblioteca(s): | Embrapa Acre.
Data corrente: | 06/05/2014
Data da última atualização: | 06/07/2021
Autoria: | LEITE, F. M. N.; SOUZA, M. L. de; SOUZA, J. M. L. de; CARTAXO, C. B. da C.; ALVARES, V. de S.; CUNHA, C. R. da.
Afiliação: | Universidade Federal do Acre (Ufac); JOANA MARIA LEITE DE SOUZA, CPAF-AC; CLEISA BRASIL DA CUNHA CARTAXO, CPAF-AC; VIRGINIA DE SOUZA ALVARES, CPAF-AC; CLARISSA RESCHKE DA CUNHA, CPAF-AC.
Título: | Incidence of Aspergillus flavus, Aspergillus parasiticus and aflatoxins in Brazil nuts in the Amazon forest environment.
Ano de publicação: | 2014
Fonte/Imprenta: | World Mycotoxin Journal, v. 7, n. 2, p.199-205, 2014.
Idioma: | Inglês
Conteúdo: | This 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.
Palavras-Chave: | Aflatoxinas; Castanha do brasil; Madera tropical; Micotoxinas; Nuez del Brasil.
Thesagro: | Aflatoxina; Aspergillus flavus; Bertholletia excelsa; Castanha do pará; Contaminação fúngica; Essência florestal; Fator de crescimento; Micotoxina.
Thesaurus Nal: | Aflatoxins; Aspergillus parasiticus; Brazil nuts; Fungi; Mycotoxins; Tropical wood.
Categoria do assunto: | K Ciência Florestal e Produtos de Origem Vegetal
Registro original: | Embrapa Acre (CPAF-AC)
Exemplares: | CPAF-AC - (24986-1) - UPC - AP - DD -  -  -  - DIS