AiM  Vol.2 No.3 , September 2012
Relationship Study between the Alkaline Protease Production and the Growth Phases of Pseudomonas aeruginosa Isolated from Patients
Author(s) Ali Jaffar Saleem*
ABSTRACT
This study was conducted in Diyala University Laboratories collaboration with the Directorate of Diyala Health. Occurrence of Pseudomonas aeruginosa was investigated in 161 samples from different clinical sources included Swabs from wounds, burns, ear, eye and samples from Urine and sputum which were collected from patients. Depending on the cultural and micro features and biochemical tests 49 isolated items of this bacteria have been diagnosed and all the isolates showed the proteolytic activity by using skim milk agar through forming clear zone around the growing colonies, and tested the isolates ability of alkaline protease production by quantitative methods, the local isolation P. aeruginosa AP3 had been selected based on the higher productivity of enzyme comparing to other isolates and thus it was used in the current study. Studied the relationship between the production of alkaline protease enzymes and growth phases of P. aeruginosa to determine the time of the enzyme production and the results showed that the local isolation P. aeruginosa AP3 began production of the enzyme in the later stages of the log phase and increased production significantly in the stationary phase reaching amaximum after 48 hours as estimated the enzyme activity 159.2 units/ml in the farm leaky and keep the enzyme fully functional almost in the stationary phase.

Cite this paper
A. Jaffar Saleem, "Relationship Study between the Alkaline Protease Production and the Growth Phases of Pseudomonas aeruginosa Isolated from Patients," Advances in Microbiology, Vol. 2 No. 3, 2012, pp. 354-357. doi: 10.4236/aim.2012.23043.
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