Please use this identifier to cite or link to this item: http://hdl.handle.net/1822/25056

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dc.contributor.authorMoldes, Ana-
dc.contributor.authorParadelo, R.-
dc.contributor.authorVecino, X.-
dc.contributor.authorCruz, J. M.-
dc.contributor.authorGudiña, Eduardo J.-
dc.contributor.authorRodrigues, L. R.-
dc.contributor.authorTeixeira, J. A.-
dc.contributor.authorDominguez, José Manuel-
dc.contributor.authorBarral, M. T.-
dc.date.accessioned2013-09-09T10:21:57Z-
dc.date.available2013-09-09T10:21:57Z-
dc.date.issued2013-
dc.identifier.issn2314-6133por
dc.identifier.issn2314-6141por
dc.identifier.urihttp://hdl.handle.net/1822/25056-
dc.description.abstractThe capability of a cell bound biosurfactant produced by Lactobacillus pentosus, to accelerate the bioremediation of a hydrocarbon-contaminated soil, was compared with a synthetic anionic surfactant (sodium dodecyl sulphate SDS-). The biosurfactant produced by the bacteria was analyzed by Fourier transform infrared spectroscopy (FTIR) that clearly indicates the presence of OH and NH groups, C=O stretching of carbonyl groups and NH nebding (peptide linkage), as well as CH2–CH3 and C–O stretching, with similar FTIR spectra than other biosurfactants obtained from lactic acid bacteria. After the characterization of biosurfactant by FTIR, soil contaminated with 7,000 mg Kg−1 of octane was treated with biosurfactant from L. pentosus or SDS. Treatment of soil for 15 days with the biosurfactant produced by L. pentosus led to a 65.1% reduction in the hydrocarbon concentration, whereas SDS reduced the octane concentration to 37.2% compared with a 2.2% reduction in the soil contaminated with octane in absence of biosurfactant used as control. Besides, after 30 days of incubation soil with SDS or biosurfactant gave percentages of bioremediation around 90% in both cases. Thus, it can be concluded that biosurfactant produced by L. pentosus accelerates the bioremediation of octane-contaminated soil by improving the solubilisation of octane in the water phase of soil, achieving even better results than those reached with SDS after 15-day treatment.por
dc.description.sponsorshipThe authors wish to thank to the Spanish Ministry of Economy and Competitiveness (projects CTM 2008-01608/TECNO and CTM2012-31873) and X. Vecino is grateful to the University of Vigo for the predoctoral contract.por
dc.language.isoengpor
dc.publisherHindawi Publishing Corporationpor
dc.rightsopenAccesspor
dc.subjectBiosurfactantspor
dc.subjectBioremediationpor
dc.subjectLactic acid bacteriapor
dc.titlePartial characterization of biosurfactant from Lactobacillus pentosus and comparison with sodium dodecyl sulphate for the bioremediation of hydrocarbon contaminated soilpor
dc.typearticlepor
dc.peerreviewedyespor
sdum.publicationstatuspublishedpor
oaire.citationStartPage1por
oaire.citationEndPage6por
oaire.citationTitleBioMed Research Internationalpor
oaire.citationVolume2013por
dc.publisher.uriHindawi Publishing Corp.por
dc.identifier.essn2314-6141por
dc.identifier.doi10.1155/2013/961842-
dc.identifier.pmid23691515por
dc.subject.wosScience & Technologypor
sdum.journalBiomed Research Internationalpor
Appears in Collections:CEB - Publicações em Revistas/Séries Internacionais / Publications in International Journals/Series

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