[Screening of microorganisms--producers of proteases].

Screening of producers of proteases among 367 strains of microorganisms has been carried out. A capacity to synthesize the enzymes was revealed in 25% of the studied strains of Bacillus genus (from 0.0054 to 0.892 un./mg of protein) and in 35% of the yeasts of Yarrowia genus (0.95 to 1.349 un./mg of protein). Elastase, gelatinase, caseinolytic, fibrinolytic and haemoglobinolytic activities were found in culture liquid of 7 the most active strains, their values depended on time of producer cultivation.