Academic journal article Iranian Journal of Public Health

Optimization of Biosurfactant Production by Pseudomonas Aeruginosa Isolated from Activated Sludge Reservoirs Using Waste Oil

Academic journal article Iranian Journal of Public Health

Optimization of Biosurfactant Production by Pseudomonas Aeruginosa Isolated from Activated Sludge Reservoirs Using Waste Oil

Article excerpt

Background: The aim of this study was to investigate the conditions of biosurfactant production by bacteria isolated from activated sludge reservoirs, using industrial waste as substrate.

Methods: Biosurfactant production by two different types of medium with various concentrations of carbon and nitrogen source was investigated. Samples were incubated at different temperatures. Optimum condition for biosurfactant produc- tion and activity was studied. Finally, the surface tension of the samples was measured.

Results: Results showed that different concentration of car- bon and nitrogen source had significant role in the produc- tion of biosurfactants. In this study, the highest rate of bio- surfactants production was observed at 30°C with 3ml oil concentration and 2 mg/ml nitrogen source.

Conclusion: Biosurfactants are potentially used for remov- ing oil contamination. In addition, biosurfactants were in- volved in reducing hospital infections and medical systems rather than chemical drugs. …

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