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Production, characterization and application of polymers of malic and glutamic acids
 Čangelová, Katarína ; Kučera, Dan (referee) ; Obruča, Stanislav (advisor)
Subject of this bachelor thesis was study of biopolymers production using microorganisms. Polymer of malic acid was produced by Aureobasidium pullulans, a yeast-like fungus. Biosynthesis of polymer of glutamic acid was carried out by Bacillus licheniformis bacterium. Particular polymers, their microbial producers and possible application in different areas are characterised in the theoretical part of the thesis. Through experiments, the effect of various conditions on cell growth and production of these polymers was studied. Cultivation conditions were optimised in terms of polymers production. Subsequently, waste substrates - whey and poultry feathers were used. Microbially-produced polymer of malic acid was hydrolysed with 2 M sulfuric acid. Concentration of malic acid was analysed by IEC with a conductivity detector. Concentration of polymer of glutamic acid was determined by a spectrophotometric method using CTAB.
Detailed record
Production, characterization and application of polymers of malic and glutamic acids
 Čangelová, Katarína ; Kučera, Dan (referee) ; Obruča, Stanislav (advisor)
Subject of this bachelor thesis was study of biopolymers production using microorganisms. Polymer of malic acid was produced by Aureobasidium pullulans, a yeast-like fungus. Biosynthesis of polymer of glutamic acid was carried out by Bacillus licheniformis bacterium. Particular polymers, their microbial producers and possible application in different areas are characterised in the theoretical part of the thesis. Through experiments, the effect of various conditions on cell growth and production of these polymers was studied. Cultivation conditions were optimised in terms of polymers production. Subsequently, waste substrates - whey and poultry feathers were used. Microbially-produced polymer of malic acid was hydrolysed with 2 M sulfuric acid. Concentration of malic acid was analysed by IEC with a conductivity detector. Concentration of polymer of glutamic acid was determined by a spectrophotometric method using CTAB.
Detailed record

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