Research on mycotoxin glucosides (masked mycotoxins)

For the detection of new glucoside derivatives of mycotooxins (masked mycotoxins), screening based on the accurate mass was carried out through the high resolution mass spectrometry measurement with LC-MS (LC-Orbitrap MS). Consequently, mono-glucoside derivatives of type B trichothecenes (nivalenol and fusarenon-X) in wheat grains infected with Fusarium strains and those of the type A trichothecenes (T-2 toxin, HT-2 toxin, neosolaniol, diacetoxyscirpenol, and monoacetoxyscirpenol) in corn powder reference material were detected, respectively. Di-glucoside derivatives were also found for T-2 toxin and HT-2 toxin. These findings indicate that the presence of masked mycotoxins is not limited to some specific mycotoxins such as deoxynivalenol and zearalenone, but likely with the other Fusarium mycotoxins.