Occurrence of fungi and aflatoxins B in nuts and products marketed the Brazilian northeastern regions
Vol. 75 (2016), BRIEF COMMUNICATION
Vol. 75 (2016)

Occurrence of fungi and aflatoxins B in nuts and products marketed the Brazilian northeastern regions

BRIEF COMMUNICATION
https://doi.org/10.53393/rial.2016.v75.33524
Published 2016-12-01
Mariana de Freitas Moreira
Universidade Estadual do Ceará, Centro de Ciências da Saúde, Laboratório de Bioquímica Humana, Fortaleza, CE
Tatiane Rodrigues de Oliveira
Universidade Estadual do Ceará, Centro de Ciências da Saúde, Laboratório de Bioquímica Humana, Fortaleza, CE
Ícaro Gusmão Pinto Vieira
Universidade Federal do Ceará, Parque de Desenvolvimento Tecnológico
Francisco das Chagas Oliveira Freire
Embrapa Agroindústria Tropical
Sabrina César da Silva
Universidade Estadual do Ceará, Centro de Ciências da Saúde, Laboratório de Bioquímica Humana, Fortaleza, CE
Luzara de Matos Ribeiro
Universidade Federal do Ceará, Parque de Desenvolvimento Tecnológico
Maria Izabel Florindo Guedes
Universidade Estadual do Ceará, Centro de Ciências da Saúde, Laboratório de Bioquímica Humana, Fortaleza, CE
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Keywords

Brazil nuts
peanuts
aflatoxins
chromatography
thin layer

How to Cite

1.
Moreira M de F, Oliveira TR de, Vieira Ícaro GP, Freire F das CO, Silva SC da, Ribeiro L de M, Guedes MIF. Occurrence of fungi and aflatoxins B in nuts and products marketed the Brazilian northeastern regions. Rev Inst Adolfo Lutz [Internet]. 2016 Dec. 1 [cited 2024 Sep. 27];75:01-6. Available from: https://periodicos.saude.sp.gov.br/RIAL/article/view/33524
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Abstract

Aflatoxin contamination has been considered as a public health problem, especially in tropical countries, including Brazil. In order to investigate the presence of type B aflatoxins in products marketed in the city of Fortaleza, 23 samples were analyzed by thin layer chromatography. Visible fungal contamination in food was identified according to their macroscopic and microscopic features. The contamination by aflatoxins was detected in 8.7 % of 23 analyzed samples, and 12.5 % of Brazilian nuts samples were positive for AFB1 (<8 μg/kg) and for AFB2 in a contamination rate above the allowed value (16 μg/kg). Among the peanut samples, 33.3 % were positive to AFB1 and AFB2, also in a contamination rate (317.1 μg/kg) which was higher than that recommended by ANVISA. The isolation and morphological characteristics of fungi detected mainly in Brazilian nuts with peel showed the occurrence of the following species: Aspergillus flavus, Aspergillus niger, Mucor sp, Cladosporium sphaerospermum, Cladosporium cladosporoides, Fusarium sp, Aspergillus terreus and bacteria of Actinomycetes phylum. These findings indicate that it is needed to apply the mostly effective quality monitoring of food available to consumers.

https://doi.org/10.53393/rial.2016.v75.33524
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