Combination of steam explosion and laccase-mediator treatments prior to Eucalyptus globulus kraft pulping

The effect of a pretreatment consisting of steam explosion (SE) followed by a laccase mediator system (LMS) stage on Eucalyptus globulus kraft pulping has been evaluated and compared with fungal pretreatments. Pretreatment with SE and LMS was more efficient than pretreatments using Pycnoporus sangui...

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Authors: Martín-Sampedro, Raquel, Eugenio, María E., Carbajo, J. M., Villar, J. C.
Format: article
Status:Versión aceptada para publicación
Publication Date:2011
Country:España
Institution:Consejo Superior de Investigaciones Científicas (CSIC)
Repository:DIGITAL.CSIC. Repositorio Institucional del CSIC
OAI Identifier:oai:digital.csic.es:10261/292345
Online Access:http://hdl.handle.net/10261/292345
Access Level:Open access
Keyword:Steam explosion
Biopulping
Laccase
White-rot fungi
Eucalyptus globulus
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spelling Combination of steam explosion and laccase-mediator treatments prior to Eucalyptus globulus kraft pulpingMartín-Sampedro, RaquelEugenio, María E.Carbajo, J. M.Villar, J. C.Steam explosionBiopulpingLaccaseWhite-rot fungiEucalyptus globulusThe effect of a pretreatment consisting of steam explosion (SE) followed by a laccase mediator system (LMS) stage on Eucalyptus globulus kraft pulping has been evaluated and compared with fungal pretreatments. Pretreatment with SE and LMS was more efficient than pretreatments using Pycnoporus sanguineus and Trametes sp. I-62. Steam explosion not only improved the enzyme penetration into the wood chips and shortened the pulping process by 60%, but also extracted around 50% of the hemicelluloses which could be converted into value-added products. The optimal conditions for the LMS treatment were 3h, 3UA/g and 40°C. Compared to SE, the SE/LMS treatment yielded an increase in delignification of 13.9% without affecting pulp properties, provided a similar screened kraft yield, and reduced consumption of chemical reagents Na2S and NaOH by 11.5% and 6.3%, respectively. Therefore, SE/LMS is a promising pretreatment for converting the pulp mill into a forest bio-refinery. © 2011 Elsevier Ltd.Peer reviewedElsevierConsejo Superior de Investigaciones Científicas [https://ror.org/02gfc7t72]202320232011info:eu-repo/semantics/articlehttp://purl.org/coar/resource_type/c_6501Postprintinfo:eu-repo/semantics/acceptedVersionapplication/pdfhttp://hdl.handle.net/10261/292345reponame:DIGITAL.CSIC. Repositorio Institucional del CSICinstname:Consejo Superior de Investigaciones Científicas (CSIC)InglésInstituto de Ciencias Forestales (ICIFOR)Síinfo:eu-repo/semantics/openAccessoai:digital.csic.es:10261/2923452026-05-22T06:33:51Z
dc.title.none.fl_str_mv Combination of steam explosion and laccase-mediator treatments prior to Eucalyptus globulus kraft pulping
title Combination of steam explosion and laccase-mediator treatments prior to Eucalyptus globulus kraft pulping
spellingShingle Combination of steam explosion and laccase-mediator treatments prior to Eucalyptus globulus kraft pulping
Martín-Sampedro, Raquel
Steam explosion
Biopulping
Laccase
White-rot fungi
Eucalyptus globulus
title_short Combination of steam explosion and laccase-mediator treatments prior to Eucalyptus globulus kraft pulping
title_full Combination of steam explosion and laccase-mediator treatments prior to Eucalyptus globulus kraft pulping
title_fullStr Combination of steam explosion and laccase-mediator treatments prior to Eucalyptus globulus kraft pulping
title_full_unstemmed Combination of steam explosion and laccase-mediator treatments prior to Eucalyptus globulus kraft pulping
title_sort Combination of steam explosion and laccase-mediator treatments prior to Eucalyptus globulus kraft pulping
dc.creator.none.fl_str_mv Martín-Sampedro, Raquel
Eugenio, María E.
Carbajo, J. M.
Villar, J. C.
author Martín-Sampedro, Raquel
author_facet Martín-Sampedro, Raquel
Eugenio, María E.
Carbajo, J. M.
Villar, J. C.
author_role author
author2 Eugenio, María E.
Carbajo, J. M.
Villar, J. C.
author2_role author
author
author
dc.contributor.none.fl_str_mv Consejo Superior de Investigaciones Científicas [https://ror.org/02gfc7t72]
dc.subject.none.fl_str_mv Steam explosion
Biopulping
Laccase
White-rot fungi
Eucalyptus globulus
topic Steam explosion
Biopulping
Laccase
White-rot fungi
Eucalyptus globulus
description The effect of a pretreatment consisting of steam explosion (SE) followed by a laccase mediator system (LMS) stage on Eucalyptus globulus kraft pulping has been evaluated and compared with fungal pretreatments. Pretreatment with SE and LMS was more efficient than pretreatments using Pycnoporus sanguineus and Trametes sp. I-62. Steam explosion not only improved the enzyme penetration into the wood chips and shortened the pulping process by 60%, but also extracted around 50% of the hemicelluloses which could be converted into value-added products. The optimal conditions for the LMS treatment were 3h, 3UA/g and 40°C. Compared to SE, the SE/LMS treatment yielded an increase in delignification of 13.9% without affecting pulp properties, provided a similar screened kraft yield, and reduced consumption of chemical reagents Na2S and NaOH by 11.5% and 6.3%, respectively. Therefore, SE/LMS is a promising pretreatment for converting the pulp mill into a forest bio-refinery. © 2011 Elsevier Ltd.
publishDate 2011
dc.date.none.fl_str_mv 2011
2023
2023
dc.type.none.fl_str_mv info:eu-repo/semantics/article
http://purl.org/coar/resource_type/c_6501
Postprint
info:eu-repo/semantics/acceptedVersion
format article
status_str acceptedVersion
dc.identifier.none.fl_str_mv http://hdl.handle.net/10261/292345
url http://hdl.handle.net/10261/292345
dc.language.none.fl_str_mv Inglés
language_invalid_str_mv Inglés
dc.relation.none.fl_str_mv Instituto de Ciencias Forestales (ICIFOR)
Sí
dc.rights.none.fl_str_mv info:eu-repo/semantics/openAccess
eu_rights_str_mv openAccess
dc.format.none.fl_str_mv application/pdf
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 15,811543

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