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PRODUCTION OF T-2 TOXIN AND DEOXYNIVALENOL IN THE PRESENCE OF DIFFERENT DISINFECTANTS
Authors: Hrubošová Dana | Vytřasová Jarmila | Brožková Iveta
Year: 2015
Type of publication: článek v odborném periodiku
Name of source: Potravinarstvo
Publisher name: HACCP Consulting
Place: Nitrianske Hrnčiarovce
Page from-to: 18-23
Titles:
Language Name Abstract Keywords
cze Tvorba T-2 toxinu, a deoxynivalenolu v přítomnosti různých desinfekčních látek Cílem práce bylo posoudit vliv různých dezinfekčních prostředků na tvorbu trichothecénů (zejména u T-2 toxinu a deoxynivalenolu). Lipofilita, chemická struktura, přítomnost biologicky aktivních skupin a funkční skupiny ve své struktuře modifikuje biologickou aktivitu a toxickou účinnost trichothecenů. desinfekční látky; T-2 toxin; deoxynivalenol; Fusarium; ELISA
eng PRODUCTION OF T-2 TOXIN AND DEOXYNIVALENOL IN THE PRESENCE OF DIFFERENT DISINFECTANTS The aim of the work was to examine the effect of different disinfectants on production trichothecenes (especially of T-2 toxin and deoxynivalenol). For this reason, limits have been established designating maximum levels of mycotoxins in cereals while maintaining proper growing practices. Appropriate nutritive media were prepared with different concentration of tested disinfectants (Desanal A plus, ProCura spray and Guaa-Pool) and were inoculated using Fusarium strains. The density of Fusarium was 105 spores per mililitre. Nutrient media was cultivated at 15 °C and 25 °C for seven days. The strains of Fusarium graminearum CCM F-683 and Fusarium species (isolated from barley) produced quantities of deoxynivalenol. Fusarium poae CCM F-584 and Fusarium species (isolated from malthouse air) produced quantities of T-2 toxin. Desanal A plus prevented Fusarium growth and production of T-2 toxin and deoxynivalenol at the concentration 10%. It is an alkaline disinfectant on the basis of active chlorine and the surfactant that contains ˂5% of NaClO. ProCura spray at the concentration 0.6% proved to be very effective. This disinfectant contains 35% of propan-1-ol and 25% of propan-2-ol. Guaa-Pool at the concentration 0.004% proved to be very effective. It is a polymeric disinfectant with anion surface-acting agent and it contains ˂0.9% of polyhexamethylene guanidine hydrochloride and ˂0.2% of alkyl (C12-C16) dimethylbenzyl ammonium chloride. Lower contentration of disinfectants that not prevented growth of Fusarium caused higher production of T-2 toxin and deoxynivalenol. The contents of T-2 toxin and deoxynivalenol were analyzed by enzyme-linked immunosorbent assay (ELISA) using commercially produced kits (Agra Quant® Deoxynivalenol Test kit and Agra Quant® T-2 toxin Test kit). The experiment showed that the variability in the production of T-2 toxin and deoxynivalenol depended on the Fusarium strain used, concentration of disinfectants and temperature of cultivation. disinfectant; T-2 toxin; deoxynivalenol; Fusarium; ELISA

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