Occurrence of Fusarium mycotoxins in Czech wheat in 2003-2004

摘要

The deoxynivalenol content, presence of kernels infected by Fusarium spp. pathogens and the frequency of kernels visually infected by Fusarium head blight in wheat intended for human consumption were monitored in 2003-2004. About 1,000 samples provided by growers from various regions of the Czech Republic were analysed each year. For the samples from 2004 with the deoxynivalenol content above the limit of detection (0.20 mg.kg~(-1)), the zearalenon content was also assessed. In 2003 and 2004, deoxynivalenol was detected in 4.0 and 4.5 % of the examined samples at the maximum values of 5.1 mg.kg~(-1) and 18.3 mg.kg"1, respectively. The values of the zearalenon content were low; values above the limit of detection of the method used (0.05 mg.kg~(-1))were found for 9 samples only and the maximum value was 0.12 mg.kg~(-1). Significant correlations were found between the deoxynivalenol content, percentage of kernels infected by Fusarium spp. pathogens and the frequency of visually scabby kernels.