Aflatoxins in feed, the possibilities of feed detoxification and its influence on nutritive value
1997
Bohacenko, I. | Vesely, Z. (Vyzkumny Ustav Potravinarsky, Prague (Czech Republic)) | Homolka, P.
Detoxification of corn semolina, which was intentionally contaminated with aflatoxins B1, B2, G1 and G2, by extrusion process and by the addition of an aqueous solution of NH3 under varied temperature and exposure, was examined. The results make it possible to recommend to practical workers a simple and inexpensive method of detoxification by the addition to the feed of 2 % NH3, a consequent storage for 1 week at 20 deg C in a closed space (e.g. PE bags) and the final aeration and drying. This way enables to decrease the content of all types of aflatoxins by 85 to 95 %, which is comparable with detoxification carried out by extrusion with the addition of 1 % NH3.
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