One hundred (100) samples of corn-based food products were collected between February 2007 and July
2010 to estimate the intake of fumonisins in the state of Paraná, Brazil. The identification of fumonisins
was performed by high-performance liquid chromatography with fluorescence detection and post
column o-phthaldialdehyde (OPA) derivatisation. The occurrences of fumonisins B1 (FB1) and B2 (FB2)
were 82% and 51%, respectively, with concentrations ranging from 126 to 4348 mg/kg (FB1 þ FB2). Among
corn-based products, corn meal had a higher prevalence of fumonisin (96.6%), and corn grits had the
highest level of contamination (3462 mg/kg for FB1 and 886 mg/kg for FB2). The average probable daily
intake (APDI) and maximum probable daily intake (MPDI) estimated for the population of Parana, Brazil,
were 120.58 and 256.07 ng/kg body weight/day, respectively, which is lower than the provisional
maximum tolerable daily intake (PMTDI), 2000 ng/kg body weight/day.