Levels of T-2 toxin and its metabolites, and the occurrence of Fusarium fungi in spring barley in the Czech Republic.

Autor: Pernica M; Research Institute of Brewing and Malting. Malting Institute, Mostecká 7, 614 00, Brno, Czech Republic. Electronic address: pernica@beerresearch.cz., Kyralová B; Department of Analytical Chemistry, Faculty of Chemical Technology, University of Pardubice, Studentská 573, CZ-53210, Pardubice, Czech Republic., Svoboda Z; Research Institute of Brewing and Malting. Malting Institute, Mostecká 7, 614 00, Brno, Czech Republic., Boško R; Research Institute of Brewing and Malting. Malting Institute, Mostecká 7, 614 00, Brno, Czech Republic., Brožková I; Department of Biological and Biochemical Sciences, Faculty of Chemical Technology, University of Pardubice, Studentská 573, CZ-53210, Pardubice, Czech Republic., Česlová L; Department of Analytical Chemistry, Faculty of Chemical Technology, University of Pardubice, Studentská 573, CZ-53210, Pardubice, Czech Republic., Benešová K; Research Institute of Brewing and Malting. Malting Institute, Mostecká 7, 614 00, Brno, Czech Republic., Červenka L; Department of Analytical Chemistry, Faculty of Chemical Technology, University of Pardubice, Studentská 573, CZ-53210, Pardubice, Czech Republic., Běláková S; Research Institute of Brewing and Malting. Malting Institute, Mostecká 7, 614 00, Brno, Czech Republic.
Jazyk: angličtina
Zdroj: Food microbiology [Food Microbiol] 2022 Apr; Vol. 102, pp. 103875. Date of Electronic Publication: 2021 Sep 24.
DOI: 10.1016/j.fm.2021.103875
Abstrakt: Mycotoxins have been widely studied by many research groups but further multidisciplinary research is needed to better understand and clarify many issues. This study describes the use of high-performance liquid chromatography coupled with ion trap mass spectrometry (HPLC-MS) to measure T-2 toxin and its metabolites, such as HT-2 toxin, neosolaniol (NEO) and diacetoxyscirpenol (DAS), as well as masked glucosylated mycotoxins in Fusarium-infected Czech spring barley. In total, 152 spring barley samples from the 2018 harvest were analyzed by the ELISA screening method for the presence of T-2 toxin. The most contaminated samples (15), which exceeded the recommended maximum level set by the EU for the sum of T-2 and HT-2 toxin in unprocessed cereals (200 μg/kg), were analyzed by HPLC-MS/MS and microbiological testing. Isolated fungi were evaluated microscopically and identified by polymerase chain reaction (PCR) assays. The prevalence of Fusarium species in spring barley across the Czech Republic in 2018 showed a predominance of F. poae (12 barley samples) and F. tricinctum (9 barley samples). Other strains (F. sporotrichioides and F. langsethiae) were present at a lower frequency, in 1 and 2 samples, respectively. The average concentration of T-2 plus HT-2 toxin was 107.7 μg/kg, while NEO and DAS were found in a few samples at values close to their limit of quantification. HT-2 glucoside was identified in all samples.
(Copyright © 2021 Elsevier Ltd. All rights reserved.)
Databáze: MEDLINE
Externí odkaz: