[Effect of perfluoroorganic compounds on growth of streptomycetes and biosynthesis of antibiotic daunorubicin]. / Vliianie perftoroorganicheskikh soedinenii na rost streptomitsetov i biosintez imi antibiotika daunorubitsina.

The use of perfluoroorganic compounds, i.e. perfluorodecalin and "Perftoran", a blood substitute with the gas transfer function, known as "blue blood" (containing 3 vol. % of perfluoromethylcyclohexylpiperidin and 7 vol. % of perfluorodecalin as emulsion with the average particle size of 0.07 microns) in biotechnology for intensification of the Streptomyces purpurogeniscleroticus growth under submerged conditions was shown promising for the first time. An increase of the biomass output and higher yields of daunorubicin were also demonstrated.

[Use of deflectors for increased effectiveness of free ventilation]. / Primenenie deflektorov dlia povysheniia éffektivnosti estestvennoi ventiliatsii.

It was established that the application of deflectors lowers considerably the effectiveness of free ventilation. The contributors propose newly elaborated highly effective deflectors and demonstrate their cost saving applicability in industry.