Summary
In the first phase of experiments, performance characteristics of two alternative analytical methods used for the determination of zearalenone and its metabolites were assessed in presented study. Extraction of ground grains with acetonitrile-water (84/16, v/v) mixture followed by clean-up using GPC BioBeads S-X3 soft gel were employed prior to HPLC (reversed phase column C18). The use of ELISA method allowed direct, highly sensitive measurement of zearalenone levels in crude extracts. For ELISA method, extraction with methanol-water (70/30, v/v) without any clean-up was used. Compared to HPLC/FLD method, the precision of ELISA method was inferior.
The second part of study was concerned with toxic potential of two isolates of Fusarium culmorum (W. G. Sm.) Sacc. under field conditions. Analyses of wheat varieties tested for the content of zearalenone were carried out. Levels of zearalenone in wheat inoculated by more toxic isolate (B) ranged from 309.1 to 2162.7 µg/kg. These values were higher almost by 2 orders of magnitude compared to levels found in samples inoculated with isolate A. Wheat variety SPARTA was identified as the most resistant against fungal attack from all checked varieties.
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Radová, Z., Hajšlová, J., Králová, J. et al. Analysis of Zearalenone in Wheat Using High-Performance Liquid Chromatography with Fluorescence Detection and/or Enzyme-Linked Immunosorbent Assay. CEREAL RESEARCH COMMUNICATIONS 29, 435–442 (2001). https://doi.org/10.1007/BF03543692
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DOI: https://doi.org/10.1007/BF03543692