[The biology of bacteria that assimilate C1--C2 compounds and the biotechnology aspects of their use]. / Biologiia bakterii, assimiliruiushchikh C1--C2-soedineniia, i biotekhnologicheskie aspkety ikh ispol'zovaniia.

Main directions of the research work of the Department of Biology of Gas-Oxidizing Microorganisms are described in the paper. Fundamental studies concern ecology, selection, taxonomy, physiology, biochemistry, genetics of bacteria utilizing C1--C2 compounds, mathematical simulation of microbiological processes. Applied studies are devoted to development of scientific basis of biotechnologies for synthesis of important products (single cell protein, exopolysaccharides, food ingredients, biogas) from non-food substrates, search for the hydrocarbon deposits and protection of the environment.

[Effect of carbon and nitrogen sources on exopolysaccharide synthesis by Cryptococcus laurentii]. / Vliianie istochnikov ugleroda i azota na sintez ékzopolisakharida Cryptococcus laurentii.

The effect of various carbon and nitrogen sources on the synthesis of the branched exopolysaccharide produced by Cryptococcus laurentii st 1803-K. was studied. The conditions favourable for a higher yield of the polymer were found. The carbon and nitrogen sources used do not affect the qualitative monosaccharide composition of the polysaccharide, however, the introduction of ammonium salts in the medium can cause a change in the monosaccharide ratio in the side chains of the polymer.