EFFECT OF MYCOTOXINS DAS, ZEA AND OTA ON THE GROWTH OF BREWING YEAST

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.

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eISSN:	2083-6007
ISSN:	1230-0322

W latach 2022-2024 kwartalnik naukowy Polish Journal of Food and Nutrition Sciences realizuje projekt nr RCN/SP/0520/2021/1 finansowany ze środków budżetu państwa – Ministerstwo Edukacji i Nauki w ramach programu „Rozwój czasopism naukowych”. Dofinansowanie wynosi 120 000 zł. W ramach projektu podejmowane są działania zmierzające do podniesienia poziomu praktyk wydawniczych i edytorskich, zwiększenia wpływu czasopism na rozwój nauki oraz utrzymania się czasopism w międzynarodowym obiegu naukowym.

In the years 2022-2024, the scientific quarterly Polish Journal of Food and Nutrition Sciences accomplishes a project no. RCN/SP/0520/2021/1 financed from the state budged – Ministry of Education and Science Republic of Poland in the framework of a program “Development of scientific journals”. The financing amounts to 120,000 PLN. The program aims at improving the level of publishing and editing practices, increasing the impact of scientific journals on science development, and extending the international range of scientific journals.