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  • Title: The influence of raw material contamination with mycotoxins on alcoholic fermentation indicators.
    Author: Kłosowski G, Mikulski D, Grajewski J, Błajet-Kosicka A.
    Journal: Bioresour Technol; 2010 May; 101(9):3147-52. PubMed ID: 20074946.
    Abstract:
    The aim of the research was to describe the influence of selected mycotoxins on major factors (alcohol concentration, productivity, yield and energy) that are characteristic of the fermentation process of maize mashes. Indicators of the alcoholic fermentation of mashes made from raw material with low contaminations levels were compared with mashes obtained from raw material that was selectively contaminated with mycotoxins on the following concentrations: aflatoxin B(1)-11.65 ppb, B(2)-12.60 ppb, G(1)-12.34 ppb, G(2)-12.04 ppb; ochratoxin A-177.5 ppb; zearalenone-352 ppb; deoxynivalenol-2274 ppb; fumonisin B(1)-1875 ppb, B(2)-609 ppb, B(3)-195 ppb. It was found that, apart from fumonisin, all mycotoxins substantially affected the course of subsequent fermentation phases, in particular the first and the main fermentation phases. The highest drop in alcohol concentration at the main stage of the process amounted to 1% v/v and it was achieved by contamination with zearalenone. The statistically significant drop in the final fermentation yield was observed; this was caused by raw material contaminated with all studied mycotoxins, except for fumonisin. The decrease in ethanol yield in reference to the control variant ranged from 1.42 to 3.20 dm(3) of absolute alcohol out of 100 kg of starch, depending on a toxin.
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