Enhanced crude oil biodegradation and rhamnolipid production by Pseudomonas stutzeri strain G11 in the presence of Tween-80 and Triton X-100

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dc.contributor.authorCelik, Gokcen Yuvali
dc.contributor.authorAslim, Belma
dc.contributor.authorBeyatli, Yavuz
dc.date.accessioned2019-08-01T13:38:39Z
dc.date.available2019-08-01T13:38:39Z
dc.date.issued2008
dc.departmentNiğde ÖHÜ
dc.description.abstractIn this study, the growth of sixty-one bacterial strains in crude oil were determined spectrophotometrically at 620 nm. Pseudomonas aeruginosa G11 Pseudomonas fluorescens G6, Pseudomonas stutzeri G11 and Pseudomonas putida G15 were chosen for the study based on the efficiency of crude oil utilisation. At 1%(v/v) crude oil concentration, P. stutzeri G11 strain degraded a maximum of 69%. The percentage of degradation by the P. stutzeri G11 strain decreased from 69% to 59% as the concentration of crude oil was increased from 1% (v/v) to 2.5% (v/v). Strain G11 was selected to determine the effects of surfactants(Tween-80 and TritonX-100) on the biodegradation of crude oil. While strain G11 showed 76% degradation at mineral salts medium (MSM) containing 1% (v/v) crude oil + 1% (vlv) TritonX-100, it showed 61% degradation at MSM containing 2.5% (6) crude oil + 2.5% (v/v)TritonX-100. Also, degradation rate of this strain was 96% in the presence of 1% (v/v) crude oil + 1% (v/v) Tween-80, while degradation rate was 48% in the presence of 2.5% (v/v) crude oil + 2.5% (v/v) Tween-80. Additionally, we investigated the rhamnolipid production of P. stutzeri G11 strain both in crude oil and in crude oil + two different surfactants (TritonX-100 and Tween-80, separately), These results suggest that surfactants have improved both crude oil degradation and rhamnolipid production and the degradation rates have depended very much on the chemical structure of surfactants
dc.identifier.endpage870
dc.identifier.issn0254-8704
dc.identifier.issue6
dc.identifier.pmid19297982
dc.identifier.scopus2-s2.0-57749112916
dc.identifier.scopusqualityQ3
dc.identifier.startpage867
dc.identifier.urihttps://hdl.handle.net/11480/5188
dc.identifier.volume29
dc.identifier.wosWOS:000261580800011
dc.identifier.wosqualityQ3
dc.indekslendigikaynakWeb of Science
dc.indekslendigikaynakScopus
dc.indekslendigikaynakPubMed
dc.institutionauthor[0-Belirlenecek]
dc.language.isoen
dc.publisherTRIVENI ENTERPRISES
dc.relation.ispartofJOURNAL OF ENVIRONMENTAL BIOLOGY
dc.relation.publicationcategoryMakale - Uluslararası Hakemli Dergi - Kurum Öğretim Elemanı
dc.rightsinfo:eu-repo/semantics/closedAccess
dc.subjectBiodegradation
dc.subjectCrude oil
dc.subjectPseudomonas sp
dc.subjectRhamnolipid
dc.subjectSurfactant
dc.titleEnhanced crude oil biodegradation and rhamnolipid production by Pseudomonas stutzeri strain G11 in the presence of Tween-80 and Triton X-100
dc.typeArticle

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