The effect of combinations of Fusarium mycotoxins (deoxynivalenol, zearalenone and fumonisin B1) on growth of brewing yeasts
| Autor: | B. Flannigan, Graham G. Stewart, James H. Bryce, L.S. Boeira |
|---|---|
| Rok vydání: | 2000 |
| Předmět: |
Fusarium
Carboxylic Acids Colony Count Microbial Biology Fumonisins Applied Microbiology and Biotechnology Microbiology chemistry.chemical_compound Vomitoxin Yeasts Fumonisin Food science Mycotoxin Zearalenone Growth medium Fumonisin B1 Beer food and beverages Drug Synergism General Medicine Mycotoxins biology.organism_classification Yeast chemistry Trichothecenes Biotechnology |
| Zdroj: | Journal of Applied Microbiology. 88:388-403 |
| ISSN: | 1365-2672 1364-5072 |
| DOI: | 10.1046/j.1365-2672.2000.00972.x |
| Popis: | The interactive effect of combinations of the Fusarium mycotoxins deoxynivalenol (DON), zearalenone (ZEA) and fumonisin B1 (FB1) on growth of brewing yeasts was examined. Yeast growth was assessed by measurement of dry weight or relative growth, cell number, viability and conductance change of the growth medium using direct and indirect methods. The interactive effect of a combination of these mycotoxins was subject to the ratio of toxins in the mixture and the toxicity of individual toxins on yeast growth. When a combination of mycotoxins at low concentration was added into the growth medium, no significant inhibitory effect on growth was observed compared to controls. However, when a combination of high concentrations of DON and ZEA which individually inhibited yeast growth was examined, the interactive effect was shown to pass from antagonism to synergism depending on the ratio of the toxins in the mixture. As a synergistic interaction between these Fusarium mycotoxins was observed only at high concentrations, which were far higher than would be expected in good quality grain, they are not a concern when related to yeast growth under the brewing conditions studied. |
| Databáze: | OpenAIRE |
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