Russian Article pp. 335-340

Industrial processes of cultivation of aerobic microorganisms are characterized by too small transportation rates of oxygen from a gas into a cell. The search for new ways of productivity increase by means of intensification of oxygen mass transfer in the fermentation process is of great importance. The possibilities for use of chelate transition metal complexes (CTMC) capable of binding oxygen in biosynthetic processes have been studied. The formation of labial complex of the studied substances with oxygen is shown by spectrophotometry. The increase of the oxygen delution rate in water in the presence of CTMC is shown by physical absorbtion method. The rate increase of oxygen mass transfer from gas into liquid is calculated on the base of the sulphite method. The use of CTMC in the role of oxygen carriers in the yeast cultivation leads to the biomass increase up to 20%.