Production of biosurfactant from a new and promising strain of Pseudomonas aeruginosa PA1 |
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Authors: | Santa Anna L. M. Sebastian G. V. Pereira N. Alves T. L. M. Menezes E. P. Freire D. M. G. |
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Affiliation: | 1.Centro de Pesquisas da Petrobras (Petrobras Research Center-CENPES), Rio de Janeiro, Brazil ;3.Esco la de Química, UFR, Rio de Janeiro, Brazil ;4.PEQ/COPPE/UFRJ, Rio de Janeiro, Brazil ;5.Fundac?o Tropical André Tosello, Campinas, S?o Paulo, Brazil ;6.Faculdade de Farmácia, UFRJ, Rio de Janeiro, Brazil ; |
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Abstract: | The Pseudomonas aeruginosa PA1 strain, isolated from the water of oil production in Sergipe, Northeast Brazil, wasevaluated as a potential rhamnolipid type of biosurfactant producer. The production of biosurfactants was investigated using different carbon sources (n-hexadecane, paraffin oil, glycerol, and babassu oil) and inoculum concentrations (0.0016–0.008 g/L) The best results were obtained with glycerol as the substrate and an initial cell concentration of 0.004 g/L. AC:N ratio of 22.8 led to the greatest production of rhamnolipids (1700 mg/L) and efficiency (1.18 g of rhamnolipid/g of dry wt). |
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Keywords: | Production of biosurfactants glycolipids rhamnolipids Pseudomonas aeruginosa surface tension |
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