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dc.contributor.authorAndreu Terrén, Glòria
dc.contributor.authorVidal Lluciá, Teresa
dc.contributor.otherUniversitat Politècnica de Catalunya. Departament d'Enginyeria Química
dc.contributor.otherUniversitat Politècnica de Catalunya. Departament d'Enginyeria Tèxtil i Paperera
dc.date.accessioned2013-03-12T16:04:36Z
dc.date.created2012-03
dc.date.issued2012-03
dc.identifier.citationAndreu, M.; Vidal, T. Laccase from Pycnoporus cinnabarinus and phenolic compounds: can the efficiency of an enzyme mediator for delignifying kenaf pulp be predicted?. "Bioresource technology", Març 2012, vol. 131, p. 536-540.
dc.identifier.issn0960-8524
dc.identifier.urihttp://hdl.handle.net/2117/18230
dc.description.abstractIn this work, kenaf pulp was delignified by using laccase in combination with various redox mediators and the efficiency of the different laccase–mediator systems assessed in terms of the changes in pulp properties after bleaching. The oxidative ability of the individual mediators used (acetosyringone, syringaldehyde, p-coumaric acid, vanillin and actovanillone) and the laccase–mediator systems was determined by monitoring the oxidation–reduction potential (ORP) during process. The results confirmed the production of phenoxy radicals of variable reactivity and stressed the significant role of lignin structure in the enzymatic process. Although changes in ORP were correlated with the oxidative ability of the mediators, pulp properties as determined after the bleaching stage were also influenced by condensation and grafting reactions. As shown here, ORP measurements provide a first estimation of the delignification efficiency of a laccase–mediator system.
dc.format.extent5 p.
dc.language.isoeng
dc.subjectÀrees temàtiques de la UPC::Enginyeria química::Química analítica::Anàlisi enzimàtica
dc.subject.lcshKenaf
dc.subject.lcshLaccase
dc.subject.lcshPhenols
dc.subject.lcshOxidation-reduction reaction
dc.subject.otherKenaf
dc.subject.otherLaccase
dc.subject.otherPhenolic mediators
dc.subject.otherOxidation–reduction potential
dc.titleLaccase from Pycnoporus cinnabarinus and phenolic compounds: can the efficiency of an enzyme mediator for delignifying kenaf pulp be predicted?
dc.typeArticle
dc.subject.lemacFibres vegetals
dc.subject.lemacMaterials compostos
dc.subject.lemacEnzims
dc.contributor.groupUniversitat Politècnica de Catalunya. CIPAGRAF - Grup de Recerca Paperer i Gràfic
dc.identifier.doi10.1016/j.biortech.2013.01.033
dc.description.peerreviewedPeer Reviewed
dc.relation.publisherversionhttp://www.sciencedirect.com/science/article/pii/S0960852413000564
dc.rights.accessRestricted access - publisher's policy
drac.iddocument11709369
dc.description.versionPostprint (published version)
dc.date.lift10000-01-01
upcommons.citation.authorAndreu, M.; Vidal, T.
upcommons.citation.publishedtrue
upcommons.citation.publicationNameBioresource technology
upcommons.citation.volume131
upcommons.citation.startingPage536
upcommons.citation.endingPage540


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