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Biodesulfurization of gas oil using inorganic supports biomodified with metabolically active cells immobilized by adsorption

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Autor dc.contributor.author Dinamarca M.A.
Autor dc.contributor.author Ibacache-Quiroga C.
Autor dc.contributor.author Baeza P.
Autor dc.contributor.author Galvez S.
Autor dc.contributor.author Villarroel M.
Autor dc.contributor.author Olivero P.
Autor dc.contributor.author Ojeda J.
Fecha Ingreso dc.date.accessioned 2014-04-05T00:12:32Z
Fecha Disponible dc.date.available 2014-04-05T00:12:32Z
Fecha en Repositorio dc.date.issued 2014-04-04
dc.identifier 10.1016/j.biortech.2009.11.086
dc.description.abstract The immobilization of Pseudomonas stutzeri using adsorption on different inorganic supports was studied in relation to the number of adsorbed cells, metabolic activity and biodesulfurization (BDS). The electrophoretic migration (EM) measurements and Tetrazolioum (TTC) method were used to evaluate adsorption and metabolic activity. Results indicate that maximal immobilization was obtained with an initial load of 14 × 108 cells mL-1 for Al and Sep, whereas Ti requires 20 × 108 cells Ml-1. The highest interaction was observed in the P. stutzeri/Si and P. stutzeri/Sep biocatalysts. The IEP values and metabolic activities indicate that P. stutzeri change the surface of supports and maintains metabolic activity. A direct relation between BDS activity and the adsorption capacity of the bacterial cells was observed at the adsorption/desorption equilibrium level. The biomodification of inorganic supports by the adsorption process increases the bioavailability of sulphur substrates for bacterial cells, improving BDS activity. © 2009 Elsevier Ltd. All rights reserved. en_US
dc.source Bioresource Technology
Link Descarga dc.source.uri http://www.scopus.com/inward/record.url?eid=2-s2.0-74749088240&partnerID=40&md5=514a515af86d53b52c9c964f23d7f41e
Title dc.title Biodesulfurization of gas oil using inorganic supports biomodified with metabolically active cells immobilized by adsorption en_US
Tipo dc.type Article
dc.description.keywords oil; sulfur; adsorption; article; biocatalysis; bioremediation; chemistry; cytology; ecosystem restoration; gas; immobilized cell; isolation and purification; metabolism; methodology; Pseudomonas; Adsorption; Biocatalysis; Biodegradation, Environmental; Cells, Immobilized; Environmental Remediation; Gases; Oils; Pseudomonas; Sulfur en_US


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