[Effect of aeration on the physiological activity and lipogenesis in Rhodotorula glutinis yeasts].

The effect of aeration on growth and production of extra- and intracellular lipids was studied in the yeast Rhodotorula glutinis. Oxygen concentration in the medium optimal for biomass formation did not favour the maximal lipid yield. Changes in the fatty acid composition of the both lipid types as a function of aeration are discussed.

[Comparative lipid composition of mare's milk and a koumiss mixture prepared with cow's milk].

Fractional and fatty acid lipid composition of mare's milk and a kumiss mixture prepared on the basis of cow's milk components were studied and compared. Lipids contained by the products indicated were found to substantially differ. This is mainly accounted for by specific features of milk synthesized by different animals.

[Makeup of the extracellular lipids in Rhodotorula glutinis yeasts].

The fractional composition of extracellular lipids extracted with hexane and ethanol was studied in the yeast Rhodotorula glutinis 35 by thin-layer chromatography. The two extracts of extracellular lipids were found to be similar in composition though differing in the quantitative content of individual fractions. The fractional composition of extracellular lipids differed from that of intracellular lipids.