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UBC Theses and Dissertations

Studies on the protease of Pseudomonas aeruginosa Lacko, Andras G.


Contrary to some reports in the literature Pseudomonas aeruginosa ATCC 9027 as well as other strains of Pseudomonads produced definitely larger amounts of protease when supplied with proteinaceous nutrients than in a glucose mineral salts medium. The enzyme appeared to be extracellular in character and liberated under conditions of at least partial starvation in the presence of an inducer. Of the properties of the enzyme temperature and pH optima were found to be 60°C and pH 8.0 respectively. Chelating agents were found to inhibit enzyme activity.

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