It appears to occur much less frequently than the aflatoxins, although analytical methods for its determination have not been as sensitive until recently, and so it is possible that small concentrations in food commodities may not always have been detected.
Vyskytuje se mnohem méně často než aflatoxiny, byť analytické metody pro jeho určení dosud nebyly tak citlivé, takže je možné, že malé koncentrace v potravinách nemusely být vždy detekovány.