Aflatoxins, ochratoxin A and zearalenone in maize-based food products

Brazilian Journal of Microbiology

Beatriz Leiko Sekiyama¹  Alessandra Braga Ribeiro¹  Paulo André Machinski¹  Miguel Machinski Junior¹ 

[1] ,Universidade Estadual de Maringá Departamento de Análises Clínicas Laboratório de ToxicologiaMaringá PR ,Brasil

关键词: mycotoxins;    risk;    Brazilian products derived from maize;    micotoxinas;    risco;    produtos brasileiros derivados do milho;   

DOI  :  10.1590/S1517-83822005000300016

来源: SciELO

【 摘 要 】

The occurrence of aflatoxins B1 (AFB1), B2 (AFB2 ), G1 (AFG1 ) and G2 (AFG2 ), ochratoxin A (OA) and zearalenone (ZEA) was evaluated in 121 maize-based food samples collected in the commerce of Maringá City, Paraná State, Brazil. The study was carried out between January 2002 and February 2003. Thin-layer chromatographic method was used to determine the mycotoxins. The recovery averages were 106.6%, 109.4%, 106.6%, 109.4%, 101.8% and 101.7% to AFB1, AFB2, AFG1, AFG2, OA and ZEA, respectively. Three samples (2.5%) were positive to AFB1 (8 to 59 µg/kg), two (1.7%) to AFB2 (2.4 µg/kg), one (0.8%) to OA (64 µg/kg) and one (0.8%) to ZEA (448 µg/kg). The greater frequency of positive samples and also the highest concentration of AFB1 were found in popcorn samples (8.3%, 59 µg/kg). The data showed a low frequency of mycotoxins in products based on maize traded in Maringá, but the Probable Average Daily Intake (PDI) of AFB1 in them was high. Therefore, it is necessary to accomplish an active vigilance of these mycotoxins in such food products in order to provide safety to Brazilian people health.

【 授权许可】

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