Simultaneous occurrence of aflatoxins and fumonisins in corn intended for the pet feed industry and for human consumption
Oliveira, C. A. F. | Cruz, J. V. S. | Rosim, R. E. | Bordin, K. | Kindermann, A. C. P. | Corassin, C. H.
In this study, 24 samples of corn intended for the pet feed industry (PFI) and 24 samples of corn for human consumption (HC) commercialized in São Paulo, Brazil were analyzed for aflatoxins B1, B2, G1 and G2, and fumonisins B1 and B2 by high performance liquid chromatography. The concentrations of total aflatoxins in positive samples of PFI (33.3%) and HC (70.8%) corn samples ranged from 0.5 to 3.9 μg/kg and 0.5 to 41.8 μg/kg, respectively. For fumonisins, the concentrations in positive samples of PFI (100%) and HC (83.3%) corn samples ranged from 685 to 11,379 μg/kg and 157 to 6,495 μg/kg, respectively. Overall the aflatoxin levels complied with regulations for food products in Brazil (20 μg/kg), except for one sample of HC corn. However, the high incidence of fumonisins indicates the need for better agricultural practices to avoid contamination of corn, especially in the PFI.
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