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Production of proteolytic enzymes by selected microorganisms
 Pala, Martin ; Lichnová, Andrea (referee) ; Márová, Ivana (advisor)
Presented work was focused on study of microbial production of proteolytic enzymes used in many industrial applications. Bacterium Bacillus subtilis was used for laboratory production of microbial proteolytic enzymes. During cultivation production of biomass and proteolytic enzymes were studied influence of substrate type and stress factor application (osmotic shock, hydrogen peroxide and ethanol) was tested too. The highest concentration of biomass was measured in concentrated BM medium after 32 hours of cultivation. Biomass yield was 1.11 g/l. The highest protease activity (88.28 U/ml) was obtained in the same cultivation medium and time of cultivation. According to results of stress experiments it can be concluded that most of used stress factors exhibited a toxic effects to bacterial culture even at low concentrations.
Detailed record
Production of proteolytic enzymes by selected microorganisms
 Pala, Martin ; Lichnová, Andrea (referee) ; Márová, Ivana (advisor)
Presented work was focused on study of microbial production of proteolytic enzymes used in many industrial applications. Bacterium Bacillus subtilis was used for laboratory production of microbial proteolytic enzymes. During cultivation production of biomass and proteolytic enzymes were studied influence of substrate type and stress factor application (osmotic shock, hydrogen peroxide and ethanol) was tested too. The highest concentration of biomass was measured in concentrated BM medium after 32 hours of cultivation. Biomass yield was 1.11 g/l. The highest protease activity (88.28 U/ml) was obtained in the same cultivation medium and time of cultivation. According to results of stress experiments it can be concluded that most of used stress factors exhibited a toxic effects to bacterial culture even at low concentrations.
Detailed record

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