Decolorization of reactive dyes by immobilized laccase

dc.creatorPeralta-Zamora, P
dc.creatorPereira, CM
dc.creatorTiburtius, ERL
dc.creatorMoraes, SG
dc.creatorRosa, MA
dc.creatorMinussi, RC
dc.creatorDuran, N
dc.date2003
dc.dateMAY 8
dc.date2014-11-16T01:02:17Z
dc.date2015-11-26T17:37:03Z
dc.date2014-11-16T01:02:17Z
dc.date2015-11-26T17:37:03Z
dc.date.accessioned2018-03-29T00:18:44Z
dc.date.available2018-03-29T00:18:44Z
dc.identifierApplied Catalysis B-environmental. Elsevier Science Bv, v. 42, n. 2, n. 131, n. 144, 2003.
dc.identifier0926-3373
dc.identifierWOS:000182553700002
dc.identifier10.1016/S0926-3373(02)00220-5
dc.identifierhttp://www.repositorio.unicamp.br/jspui/handle/REPOSIP/79330
dc.identifierhttp://www.repositorio.unicamp.br/handle/REPOSIP/79330
dc.identifierhttp://repositorio.unicamp.br/jspui/handle/REPOSIP/79330
dc.identifier.urihttp://repositorioslatinoamericanos.uchile.cl/handle/2250/1285863
dc.descriptionImmobilization of laccase by Trametes versicolor on silica chemically modified with imidazol groups, amberlite IRA-400, glass-ceramic chemically modified with carbodiimide/glutaraldehyde and by aminoprolyltriethoxysilane/glutaraldehyde and montmorillonite modified by aminoprolyltriethoxysilane/glutaraldehyde were afforded. These supports were used in the decolorization of textile reactive dyes (Remazol Brilliant Blue R, Remazol Black B, Reactive Orange 122 and Reactive Red 251). One of the most efficient supports was studied in a more detailed way, silica modified by imidazole SiIm led us to obtain almost total immobilization of laccase at contact times lower than 45 min. The immobilized laccase showed high decolorization efficiency toward aqueous solutions of the dyes. In the first stages of the process, the decolorization is mainly due to adsorption of the dyes onto the support surface. However, when working in a successive dye addition system, the adsorption capacity of the supports decrease (saturation) and the enzymatic decolorization process is clearly evidenced. The use of a brief photochemical pre-treatment permitted a significantly increase on the efficiency of the enzymatic decolorization process. (C) 2002 Elsevier Science B.V. All rights reserved.
dc.description42
dc.description2
dc.description131
dc.description144
dc.languageen
dc.publisherElsevier Science Bv
dc.publisherAmsterdam
dc.publisherHolanda
dc.relationApplied Catalysis B-environmental
dc.relationAppl. Catal. B-Environ.
dc.rightsfechado
dc.rightshttp://www.elsevier.com/about/open-access/open-access-policies/article-posting-policy
dc.sourceWeb of Science
dc.subjectimmobilized laccase
dc.subjectdecolorization
dc.subjectreactive dyes
dc.subjectKraft E1 Effluent
dc.subjectTextile Dyes
dc.subjectWaste-water
dc.subjectPhotocatalytic Degradation
dc.subjectBiomass Photochemistry
dc.subjectHorseradish-peroxidase
dc.subjectPotential Applications
dc.subjectIndustrial Effluents
dc.subjectSilica-gel
dc.subjectLignin
dc.titleDecolorization of reactive dyes by immobilized laccase
dc.typeArtículos de revistas


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