title: Biosurfactants production by Pseudomonas aeruginosa FR using palm oil.
abstract: Biosurfactants production by a strain of Pseudomonas aeruginosa using palm oil as a sole carbon source was investigated. The experiments were carried out in 500-mL conical flasks containing 100 mL of mineral media supplemented with palm oil as the sole carbon source. The P. aeruginosa FR strain was able to reduce surface tension of three tested inorganic media. Rotation velocities from 100 to 150 rpm provided free-cell fermented media with the lowest surface tension of approx 33 mN/m. Emulsification index results of even 100% were achieved when diesel was used as oil phase. Eight surface-active compounds produced by the bacterium were identified by mass spectrometry.
authors.affiliation: Departamento de Engenharia Bioquímica, Escola de Química, Centro de Tecnologia, Universidade Federal do Rio de Janeiro, Ilha do Fundão, Rio de Janeiro, RJ, CEP 21949-900, Brazil.
authors.forename: Fernando J S
authors.initials: FJ
authors.lastname: Oliveira
authors.forename: Leonardo
authors.initials: L
authors.lastname: Vazquez
authors.forename: Norberto P
authors.initials: NP
authors.lastname: de Campos
authors.forename: Francisca P
authors.initials: FP
authors.lastname: de França
mesh_terms: D018929:Cell Culture Techniques / Q000379:methods*; D000073878:Palm Oil; D010865:Pilot Projects; D010938:Plant Oils / Q000737:chemistry* / Q000378:metabolism*; D011550:Pseudomonas aeruginosa / Q000378:metabolism*; D013500:Surface Tension; D013501:Surface-Active Agents / Q000032:analysis / Q000737:chemistry* / Q000378:metabolism*
chemical_list: D010938:Plant Oils; D013501:Surface-Active Agents; D000073878:Palm Oil