Natural occurrence of richothecenes and zearalenone in Korean and imported beers

摘要

In order to survey the natural occurrence of Fusarium nycotoxins including deoxynivalenol (DON), nivale- nol (NIV), and zearalenone (ZEN) in beers consumed in Korea, a total of 54 extracts of Korean and imported beers were derivatized with heptafluorobutyric anhy- dride and analysed by gas chromatography-mass spec- trometry with selected ion monitoring mode. DON was detected in 14 samples (26/100) and NIV was detected in 43 samples (80/100). ZEN was not detected in any of the samples tested. The incidence of DON was 19/100 for Korean beers and 50/100 for imported beers, whereas the Incidence of NIV was 85/100 for Korean beers and 58/100 For imported beers. This is the first report that the beers Consumed in Korea are contaminated with DON and NIV.