APPLICATION OF POROUS CERAMIC SINTER AS A SUPPORT FOR IMMOBILIZATION OF  SACCHAROMYCES CEREVISIAE  YEAST CELLS

Aluminum ceramics with a high content of α–Al₂O₃ (ca. 97%) was analysed as a potential support for immobilized cells of Saccharomyces cerevisiae catalysing the process of ethanol fermentation. The study demonstrated that the mechanism of yeast immobilization consisted mainly in trapping the cells in the internal pores of the support and not on the adsorption surface. The presence of aluminum ions (a factor facilitating surface adsorption) in a suspension of yeast diminished adsorption capacity of the examined material. The amount of biomass bound by the support depended on the time of immobilization and yeast concentration in the solution (the porous material was immersed in). Immobilization of cells in porous aluminum ceramics did not evoke a reduction in their fermentation activity – dynamics of batch fermentation was similar to that of fermentation with free cells run under identical conditions.

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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.