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Laccase from Pycnoporus cinnabarinus and phenolic compounds: can the efficiency of an enzyme mediator for delignifying kenaf pulp be predicted?
dc.contributor.author | Andreu Terrén, Glòria |
dc.contributor.author | Vidal Lluciá, Teresa |
dc.contributor.other | Universitat Politècnica de Catalunya. Departament d'Enginyeria Química |
dc.contributor.other | Universitat Politècnica de Catalunya. Departament d'Enginyeria Tèxtil i Paperera |
dc.date.accessioned | 2013-03-12T16:04:36Z |
dc.date.created | 2012-03 |
dc.date.issued | 2012-03 |
dc.identifier.citation | Andreu, 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.issn | 0960-8524 |
dc.identifier.uri | http://hdl.handle.net/2117/18230 |
dc.description.abstract | In 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.extent | 5 p. |
dc.language.iso | eng |
dc.subject | Àrees temàtiques de la UPC::Enginyeria química::Química analítica::Anàlisi enzimàtica |
dc.subject.lcsh | Kenaf |
dc.subject.lcsh | Laccase |
dc.subject.lcsh | Phenols |
dc.subject.lcsh | Oxidation-reduction reaction |
dc.subject.other | Kenaf |
dc.subject.other | Laccase |
dc.subject.other | Phenolic mediators |
dc.subject.other | Oxidation–reduction potential |
dc.title | Laccase from Pycnoporus cinnabarinus and phenolic compounds: can the efficiency of an enzyme mediator for delignifying kenaf pulp be predicted? |
dc.type | Article |
dc.subject.lemac | Fibres vegetals |
dc.subject.lemac | Materials compostos |
dc.subject.lemac | Enzims |
dc.contributor.group | Universitat Politècnica de Catalunya. CIPAGRAF - Grup de Recerca Paperer i Gràfic |
dc.identifier.doi | 10.1016/j.biortech.2013.01.033 |
dc.description.peerreviewed | Peer Reviewed |
dc.relation.publisherversion | http://www.sciencedirect.com/science/article/pii/S0960852413000564 |
dc.rights.access | Restricted access - publisher's policy |
local.identifier.drac | 11709369 |
dc.description.version | Postprint (published version) |
dc.date.lift | 10000-01-01 |
local.citation.author | Andreu, M.; Vidal, T. |
local.citation.publicationName | Bioresource technology |
local.citation.volume | 131 |
local.citation.startingPage | 536 |
local.citation.endingPage | 540 |
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