Production of Pseudomonas aeruginosa LBI rhamnolipids following growth on Brazilian native oils

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dc.contributor.authorCosta, SGVAO
dc.contributor.authorNitschke, M.
dc.contributor.authorHaddad, R.
dc.contributor.authorEberlin, M. N.
dc.contributor.authorContiero, Jonas [UNESP]
dc.contributor.institutionUniversidade Estadual Paulista (Unesp)
dc.contributor.institutionUniversidade Estadual de Campinas (UNICAMP)
dc.date.accessioned2014-05-20T15:24:30Z
dc.date.available2014-05-20T15:24:30Z
dc.date.issued2006-02-01
dc.description.abstractOils from Buriti (Mauritia flexuosa), Cupuacu (Theobroma grandiflora), Passion Fruit (Passiflora alata), Andiroba (Carapa gitianensis), Brazilian Nut (Bertholletia excelsa) and Babassu (Orbignya spp.) were evaluated as carbon sources for rhamnolipid production by Pseudomonas aeruginosa LBI. The highest rhamnolipid concentrations were obtained from Brazilian Nut (9.9 l(-1)) and Passion Fruit (9.2 g l(-1)) oils. Surface tension varied from 29.8 to 31.5 mN m(-1), critical micelle concentration from 55 to 163 mg l(-1) and the emulsifying activity was higher against toluene (93-100%) than against kerosene (70-92%). Preliminary characterization of the surfactant mixtures by mass spectrometry revealed the presence of two major components showing m/z of 649 and 503, which corresponded to the dirhamnolipid (Rha(2)C(10)C(10)) and the monorhamnolipid (RhaC(10)C(10)), respectively. The monorhamnolipid detected as the ion of m/z 503 is predominant in all samples analyzed. (c) 2005 Elsevier Ltd. All rights reserved.en
dc.description.affiliationSão Paulo State Univ, Inst Biol Sci, Dept Biochem & Microbiol, BR-13506900 Rio Claro, SP, Brazil
dc.description.affiliationUniv Estadual Campinas, Inst Chem, Thomson Mass Spectrometry Lab, Campinas, SP, Brazil
dc.description.affiliationUnespSão Paulo State Univ, Inst Biol Sci, Dept Biochem & Microbiol, BR-13506900 Rio Claro, SP, Brazil
dc.format.extent483-488
dc.identifierhttp://dx.doi.org/10.1016/j.procbio.2005.07.002
dc.identifier.citationProcess Biochemistry. Oxford: Elsevier B.V., v. 41, n. 2, p. 483-488, 2006.
dc.identifier.doi10.1016/j.procbio.2005.07.002
dc.identifier.issn1359-5113
dc.identifier.lattes9859154979447005
dc.identifier.urihttp://hdl.handle.net/11449/35101
dc.identifier.wosWOS:000234624200032
dc.language.isoeng
dc.publisherElsevier B.V.
dc.relation.ispartofProcess Biochemistry
dc.relation.ispartofjcr2.616
dc.relation.ispartofsjr0,761
dc.rights.accessRightsAcesso restrito
dc.sourceWeb of Science
dc.subjectbiosurfactantspt
dc.subjectglycolipidspt
dc.subjectPseudomonas aeruginosapt
dc.subjectrhamnolipidspt
dc.subjectsurface-active compoundspt
dc.titleProduction of Pseudomonas aeruginosa LBI rhamnolipids following growth on Brazilian native oilsen
dc.typeArtigo
dcterms.licensehttp://www.elsevier.com/about/open-access/open-access-policies/article-posting-policy
dcterms.rightsHolderElsevier B.V.
unesp.author.lattes9859154979447005
unesp.author.orcid0000-0003-1215-6400[5]
unesp.author.orcid0000-0001-6107-4183[2]
unesp.campusUniversidade Estadual Paulista (Unesp), Instituto de Biociências, Rio Claropt

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Artigos - Bioquímica e Microbiologia - IBRC