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EFFECT OF MYCOTOXINS DAS, ZEA AND OTA ON THE GROWTH OF BREWING YEAST
Publication date: 2007-12-31
Pol. J. Food Nutr. Sci. 2007;57(Special issue 4A):123-129
KEYWORDS
ABSTRACT
The aim of the study was to assess how different concentrations of diacetoxyscirpenol (DAS), zearalenone (ZEA) and ochratoxin A (OTA) affect the growth of 4 brewing yeast strains in the model medium YEPG. Determinations were carried out for the following parameters: specific growth rate, duration of the log phase, and biomass yield. The results of the study showed that OTA exerted no toxic effect over the concentration range of 2.5 to 50 μg/mL. ZEA had an adverse influence on yeast growth only following application of the highest doses (50 and 100 μg/mL). DAS showed the highest toxicity, which inhibited the growth of all strains examined, even at the lowest concentration (2.5 μg/mL) applied. Each of the brewing yeasts strains showed a specific sensitivity to the toxins. The strains S. carlsbergensis 13 and S. cerevisiae 46 were found to be the least resistance, particularly to DAS.
| eISSN: | 2083-6007 |
| ISSN: | 1230-0322 |
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