Towards industrially-feasible delignification and pitch removal by treating paper pulp with Myceliophthora thermophila laccase and a phenolic mediator

The ability of two natural phenols to act as mediators of the recombinant Myceliophthora thermophila laccase (MtL) in eucalypt-pulp delignification was investigated. After alkaline peroxide extraction, the properties of the enzymatically-treated pulps improved with respect to the control. The pulp b...

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Autores: Babot, Esteban Daniel, Rico Campos, Alejandro, Rencoret, Jorge, Kalum, Lisbeth, Lund, Henrik, Romero Sánchez, Javier, Río Andrade, José Carlos del, Martínez, Ángel T., Gutiérrez Suárez, Ana
Tipo de recurso: artículo
Fecha de publicación:2011
País:España
Institución:Consejo Superior de Investigaciones Científicas (CSIC)
Repositorio:DIGITAL.CSIC. Repositorio Institucional del CSIC
OAI Identifier:oai:digital.csic.es:10261/39997
Acceso en línea:http://hdl.handle.net/10261/39997
Access Level:acceso abierto
Palabra clave:Laccase
Methyl syringate
Pitch deposits
Pulp bleaching
Syringaldehyde
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spelling Towards industrially-feasible delignification and pitch removal by treating paper pulp with Myceliophthora thermophila laccase and a phenolic mediatorBabot, Esteban DanielRico Campos, AlejandroRencoret, JorgeKalum, LisbethLund, HenrikRomero Sánchez, JavierRío Andrade, José Carlos delRío Andrade, José Carlos delMartínez, Ángel T.Gutiérrez Suárez, AnaLaccaseMethyl syringatePitch depositsPulp bleachingSyringaldehydeThe ability of two natural phenols to act as mediators of the recombinant Myceliophthora thermophila laccase (MtL) in eucalypt-pulp delignification was investigated. After alkaline peroxide extraction, the properties of the enzymatically-treated pulps improved with respect to the control. The pulp brightness increased (3.1 points) after the enzymatic treatment with MtL alone, but the highest improvements were obtained after the MtL treatment using syringaldehyde (4.7 points) and especially methyl syringate (8.3 points) as mediators. Likewise, a decrease in kappa number up to 2.7 points was obtained after the MtL–methyl syringate treatment, followed by decreases of 1.4 and 0.9 points after the treatments with MtL–syringaldehyde and MtL alone, respectively. On the other hand, removal of the main lipophilic extractives present in eucalypt pulp was observed after the above laccase–mediator treatments. Finally, the doses of both MtL and methyl syringate were reduced, and results compatible with industrial implementation were obtained.This study was funded by the BIORENEW and LIGNODECO EU projects (NMP2-CT-2006-026456 and KBBE-2009-3-244362, respectively) and the ELLE and RAPERO Spanish MICINN (co-financed by FEDER funds) projects AGL2008-00709 and BIO2008-01533, respectively).Peer reviewedElsevierMinisterio de Economía y Competitividad (España)European Commission201120112011info:eu-repo/semantics/articlehttp://purl.org/coar/resource_type/c_6501http://hdl.handle.net/10261/39997reponame:DIGITAL.CSIC. Repositorio Institucional del CSICinstname:Consejo Superior de Investigaciones Científicas (CSIC)Inglés#PLACEHOLDER_PARENT_METADATA_VALUE#info:eu-repo/grantAgreement/EC/FP7/244362info:eu-repo/semantics/openAccessoai:digital.csic.es:10261/399972026-05-22T06:33:51Z
dc.title.none.fl_str_mv Towards industrially-feasible delignification and pitch removal by treating paper pulp with Myceliophthora thermophila laccase and a phenolic mediator
title Towards industrially-feasible delignification and pitch removal by treating paper pulp with Myceliophthora thermophila laccase and a phenolic mediator
spellingShingle Towards industrially-feasible delignification and pitch removal by treating paper pulp with Myceliophthora thermophila laccase and a phenolic mediator
Babot, Esteban Daniel
Laccase
Methyl syringate
Pitch deposits
Pulp bleaching
Syringaldehyde
title_short Towards industrially-feasible delignification and pitch removal by treating paper pulp with Myceliophthora thermophila laccase and a phenolic mediator
title_full Towards industrially-feasible delignification and pitch removal by treating paper pulp with Myceliophthora thermophila laccase and a phenolic mediator
title_fullStr Towards industrially-feasible delignification and pitch removal by treating paper pulp with Myceliophthora thermophila laccase and a phenolic mediator
title_full_unstemmed Towards industrially-feasible delignification and pitch removal by treating paper pulp with Myceliophthora thermophila laccase and a phenolic mediator
title_sort Towards industrially-feasible delignification and pitch removal by treating paper pulp with Myceliophthora thermophila laccase and a phenolic mediator
dc.creator.none.fl_str_mv Babot, Esteban Daniel
Rico Campos, Alejandro
Rencoret, Jorge
Kalum, Lisbeth
Lund, Henrik
Romero Sánchez, Javier
Río Andrade, José Carlos del
Río Andrade, José Carlos del
Martínez, Ángel T.
Gutiérrez Suárez, Ana
author Babot, Esteban Daniel
author_facet Babot, Esteban Daniel
Rico Campos, Alejandro
Rencoret, Jorge
Kalum, Lisbeth
Lund, Henrik
Romero Sánchez, Javier
Río Andrade, José Carlos del
Martínez, Ángel T.
Gutiérrez Suárez, Ana
author_role author
author2 Rico Campos, Alejandro
Rencoret, Jorge
Kalum, Lisbeth
Lund, Henrik
Romero Sánchez, Javier
Río Andrade, José Carlos del
Martínez, Ángel T.
Gutiérrez Suárez, Ana
author2_role author
author
author
author
author
author
author
author
dc.contributor.none.fl_str_mv Ministerio de Economía y Competitividad (España)
European Commission
dc.subject.none.fl_str_mv Laccase
Methyl syringate
Pitch deposits
Pulp bleaching
Syringaldehyde
topic Laccase
Methyl syringate
Pitch deposits
Pulp bleaching
Syringaldehyde
description The ability of two natural phenols to act as mediators of the recombinant Myceliophthora thermophila laccase (MtL) in eucalypt-pulp delignification was investigated. After alkaline peroxide extraction, the properties of the enzymatically-treated pulps improved with respect to the control. The pulp brightness increased (3.1 points) after the enzymatic treatment with MtL alone, but the highest improvements were obtained after the MtL treatment using syringaldehyde (4.7 points) and especially methyl syringate (8.3 points) as mediators. Likewise, a decrease in kappa number up to 2.7 points was obtained after the MtL–methyl syringate treatment, followed by decreases of 1.4 and 0.9 points after the treatments with MtL–syringaldehyde and MtL alone, respectively. On the other hand, removal of the main lipophilic extractives present in eucalypt pulp was observed after the above laccase–mediator treatments. Finally, the doses of both MtL and methyl syringate were reduced, and results compatible with industrial implementation were obtained.
publishDate 2011
dc.date.none.fl_str_mv 2011
2011
2011
dc.type.none.fl_str_mv info:eu-repo/semantics/article
http://purl.org/coar/resource_type/c_6501
format article
dc.identifier.none.fl_str_mv http://hdl.handle.net/10261/39997
url http://hdl.handle.net/10261/39997
dc.language.none.fl_str_mv Inglés
language_invalid_str_mv Inglés
dc.relation.none.fl_str_mv #PLACEHOLDER_PARENT_METADATA_VALUE#
info:eu-repo/grantAgreement/EC/FP7/244362
dc.rights.none.fl_str_mv info:eu-repo/semantics/openAccess
eu_rights_str_mv openAccess
dc.publisher.none.fl_str_mv Elsevier
publisher.none.fl_str_mv Elsevier
dc.source.none.fl_str_mv reponame:DIGITAL.CSIC. Repositorio Institucional del CSIC
instname:Consejo Superior de Investigaciones Científicas (CSIC)
instname_str Consejo Superior de Investigaciones Científicas (CSIC)
reponame_str DIGITAL.CSIC. Repositorio Institucional del CSIC
collection DIGITAL.CSIC. Repositorio Institucional del CSIC
repository.name.fl_str_mv
repository.mail.fl_str_mv
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score 15,198674

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