Occurrence of deoxynivalenol and its 3-β-D-glucoside in wheat and maize
Résumé
Deoxynivalenol-3-β-D-glucoside (D3G), a phase II plant metabolite of the mycotoxin deoxynivalenol (DON), occurs in naturally Fusarium contaminated cereals. In order to investigate the frequency of occurrence as well as relative and absolute concentrations of D3G in naturally infected cereals, 23 wheat samples originating from fields in Austria, Germany and Slovakia as well as 54 maize samples from Austrian fields were analyzed for DON and D3G by LC-MS/MS. Both analytes were detected in all the 77 investigated field samples. DON was found from 42 to 4130 ng/g (977±1000 ng/g on average). The D3G concentrations in all cereal samples were in the range from 10 to 1070 ng/g (216±253 ng/g on average), corresponding to about 5 to 46 mol% of their DON concentrations (15±8 mol% on average).
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