Bioethanol production is a growing industry nowadays. In this work dry-grind ethanol production was carried out from
different corn samples (uncontaminated; zearalenone; fumonisin B1+B2 contaminated) and the changes of the ratio of the
solid-liquid phase as well as toxin concentrations were examined in laboratory scale. The ethanol yields of mycotoxincontaminated corn-mashes were 27% lower, due to 10% less produced glucose-concentrations from these raw materials,
compared to uncontaminated ones. By the end of the whole process, the initial 20% solid content was reduced below 7%
both in contaminated and uncontaminated corn-mashes. Differences were observed in the concentration changes of
examined toxins. Zearalenone was localized in the solid phase, and its concentrations did not alter during the ethanol
production process. Fumonisin concentration increased 3 times at the end of the process, and it dissolved in the liquid
phase in significant amount