definition

Last update: 08/04/2024 [1, 4]

Mycotoxins are toxic compounds produced by different types of fungi as secondary metabolites. They form in conducive conditions of temperature and moisture. The most extensively studied mycotoxins are those produced by the molds Aspergillus, Fusarium, Penicillium and Claviceps. Over 900 mycotoxins are currently known, and their number continues to rise. Mycotoxins form in conducive conditions of temperature and moisture. Mycotoxins are thermostable and grow on crops (‘field mycotoxins’) or during storage (‘storage mycotoxins’). ‘Modified‘ or ‘masked/hidden‘ mycotoxins are metabolites of the parent mycotoxin formed in the plant , e.g. by conjugation with polar compounds as a result of plant metabolism. Hidden forms can be disrupted upon digestion, leading to the release of the unchanged parent forms in the gastrointestinal tract.

MycotoxinFungi (main)Type
FUMONISINS B1+B2F. verticillioides, F. proliferatumField
DEOXYNIVALENOL (DON)+ D3G*, 15Ac-DON*F. graminearum, F. culmorum
ZEARALENONE (ZEN)+ αZELG*, ZEN14G*F. graminearum, F. culmorum, F. crookwellense
BEAUVERICIN (BEA)Beaveria bassiana Fusarium spp.
ENNIATINS (ENN)F. avenaceum, F. tricinctum, F. equiseti
MONILIFORMIN (MON)F. proliferatum
* examples of masked / modified mycotoxins
* examples of masked / modified mycotoxins
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