Occurrence of deoxynivalenol and deoxynivalenol-3-glucoside in durum wheat from Argentina

- All samples (n = 84) found positive for DON contamination.
- First report in Argentina of durum wheat contamination with modified DON.
- Deoxynivalenol-3-β-glucoside contributed up to 37% of the total DON content.
- Cultivars with good conversion rate of DON to deoxynivalenol-3-β-glucoside.

The occurrence of deoxynivalenol, 3- and 15-deoxynivalenol and deoxynivalenol-3-glucoside in 84 durum wheat samples, from the Argentinean main growing area, was investigated during 2012/13 and 2013/14 using LC-MS/MS. Deoxynivalenol was found in all samples at concentrations varying between