Application of industrial wastes in biotechnology of carotenogenic yeasts

prezentace, poster

angličtina

This research is focused on cultivation of selected carotenogenic yeasts by using industrial waste substrates. Carotenogenic yeasts are able to produce many valuable metabolites with use of many industrial sectors, included pharmaceutical and food industries. Within this experiment, it was necessary to map the growtf of these microorganisms on various components of these waste substrates, such as selected alcohols, sugars, organic acids etc. Subsequently, the yield coefficients and amounts of produced metabolites were compared, within the different strains and used source of nutrients. The studied metabolites include carotenoid pigments, ubiquinone, ergosterol, microbial lipids and β-glucans. These metabolites contained in biomas, were analyzed by various laboratory techniques, included gas chromatography (GC) and high performance liquid chromatography (HPLC). The industrial wastes used in this research were for example stills from th destillery industry, or waste glycerol originating from the production of biofuels. The results of this work can provide valuable informations with application in industrial biotechnology of carotenogenic yeasts and reduce their economic demandingness and at the time provide aid with ecological disposal of selected industrial wastes.

Yeasts, waste substrates, carotenoids, ubiquinone, ergosterol, fatty acids, bioreactors, alcohols.

OBRAČAJ, J.; MÁROVÁ, I.; SZOTKOWSKI, M.; HOLUB, J.

5. 10. 2023

Ljubljana, Slovinsko

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