Bleaching of radiata pine kraft pulp with the enzone process

Oxygen delignified Kraft pulps from radiata pine were treated with xylanase in the presence of a quelating agent prior to their chemical bleaching with the sequences WZE(OP)P, E(P)WZP and E(OP)WZP. Enzymes tested included Cartazyme from Sandoz, Ecopulp from Alko-ICI, Irgazyme 40 from Ciba-Genencor a...

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Autores: VICUÑA-ERRAZURIZ, JOSE, OSSES, MIGUEL, YEBER, MARIA
Formato: artículo
Estado:Versión publicada
Fecha de publicación:1995
País:Chile
Idioma:inglés
OAI Identifier:oai:repositorio.anid.cl:10533/197267
Acesso em linha:https://hdl.handle.net/10533/197267
Access Level:acceso abierto
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spelling YEBER, MARIAOSSES, MIGUELVICUÑA-ERRAZURIZ, JOSE199510.1016/0168-1656(95)00067-Zhttps://hdl.handle.net/10533/197267http://purl.org/coar/access_right/c_abf2Bleaching of radiata pine kraft pulp with the enzone process7369NLDAMSTERDAMVICUÑA-ERRAZURIZ, JOSEOSSES, MIGUELYEBER, MARIA2017-04-27T18:51:02Z2022-07-07T02:20:23Z2017-04-27T18:51:02Z2022-07-07T02:20:23Z1995Oxygen delignified Kraft pulps from radiata pine were treated with xylanase in the presence of a quelating agent prior to their chemical bleaching with the sequences WZE(OP)P, E(P)WZP and E(OP)WZP. Enzymes tested included Cartazyme from Sandoz, Ecopulp from Alko-ICI, Irgazyme 40 from Ciba-Genencor and Pulpzyme HB from Novo Nordisk. A positive effect of these xylanases was observed with the sequence XQ-E(P)WZP, which yielded pulps with a final brightness of 85-86% ISO. Application of the sequence XQ-E(OP)WZP led to pulps with brightness within the target value of 90% ISO, although enzyme effect in this case was less evident. In turn, enzymes were ineffective in the sequence X(Q)-WZE(OP)P. These results emphasize the need to design a proper chemical sequence to optimize biobleaching. In most experiments, beatability of enzyme-treated pulps was slightly affected, requiring up to 15% more revolutions in the PFI mill than the controls to reach the same tensile index.09FONDEF00FONDEF420D91I1049D91I1049virtual::21046-1WOS:A1995RR95200008WOS:A1995RR952000080168-1656https://hdl.handle.net/10533/197267ELSEVIER SCIENCE BVinstname: Conicytreponame: Repositorio Digital RI2.0instname: Conicytreponame: Repositorio Digital RI2.010.1016/0168-1656(95)00067-Zinfo:eu-repo/grantAgreement/Fondef/D91I1049info:eu-repo/semantics/dataset/hdl.handle.net/10533/93477https://doi.org/10.1016/0168-1656(95)00067-Zinfo:eu-repo/semantics/openAccessBleaching of radiata pine kraft pulp with the enzone processJOURNAL OF BIOTECHNOLOGYJ. Biotechnol.Articuloinfo:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionengArticulohttps://hdl.handle.net/10533/197267FONDEFhttp://purl.org/coar/resource_type/c_2df8fbb1e857c727-45cf-4f6a-a263-600bc78c515cvirtual::21046-1e857c727-45cf-4f6a-a263-600bc78c515cvirtual::21046-110533/197267oai:repositorio.anid.cl:10533/1972672023-07-24 20:37:53.214https://repositorio.anid.clRepositorio ANIDaletelier@anid.cl
dc.title.none.fl_str_mv Bleaching of radiata pine kraft pulp with the enzone process
dc.title.journal.none.fl_str_mv JOURNAL OF BIOTECHNOLOGY
dc.title.journalabbreviation.none.fl_str_mv J. Biotechnol.
title Bleaching of radiata pine kraft pulp with the enzone process
spellingShingle Bleaching of radiata pine kraft pulp with the enzone process
VICUÑA-ERRAZURIZ, JOSE
title_short Bleaching of radiata pine kraft pulp with the enzone process
title_full Bleaching of radiata pine kraft pulp with the enzone process
title_fullStr Bleaching of radiata pine kraft pulp with the enzone process
title_full_unstemmed Bleaching of radiata pine kraft pulp with the enzone process
title_sort Bleaching of radiata pine kraft pulp with the enzone process
dc.creator.none.fl_str_mv VICUÑA-ERRAZURIZ, JOSE
OSSES, MIGUEL
YEBER, MARIA
author VICUÑA-ERRAZURIZ, JOSE
author_facet VICUÑA-ERRAZURIZ, JOSE
OSSES, MIGUEL
YEBER, MARIA
author_role author
author2 OSSES, MIGUEL
YEBER, MARIA
author2_role author
author
description Oxygen delignified Kraft pulps from radiata pine were treated with xylanase in the presence of a quelating agent prior to their chemical bleaching with the sequences WZE(OP)P, E(P)WZP and E(OP)WZP. Enzymes tested included Cartazyme from Sandoz, Ecopulp from Alko-ICI, Irgazyme 40 from Ciba-Genencor and Pulpzyme HB from Novo Nordisk. A positive effect of these xylanases was observed with the sequence XQ-E(P)WZP, which yielded pulps with a final brightness of 85-86% ISO. Application of the sequence XQ-E(OP)WZP led to pulps with brightness within the target value of 90% ISO, although enzyme effect in this case was less evident. In turn, enzymes were ineffective in the sequence X(Q)-WZE(OP)P. These results emphasize the need to design a proper chemical sequence to optimize biobleaching. In most experiments, beatability of enzyme-treated pulps was slightly affected, requiring up to 15% more revolutions in the PFI mill than the controls to reach the same tensile index.
publishDate 1995
dc.date.issued.none.fl_str_mv 1995
dc.date.accessioned.none.fl_str_mv 2017-04-27T18:51:02Z
2022-07-07T02:20:23Z
dc.date.available.none.fl_str_mv 2017-04-27T18:51:02Z
2022-07-07T02:20:23Z
dc.type.none.fl_str_mv Articulo
dc.type.driver.none.fl_str_mv info:eu-repo/semantics/article
dc.type.openaire.none.fl_str_mv info:eu-repo/semantics/publishedVersion
format article
status_str publishedVersion
dc.identifier.eissn.none.fl_str_mv 0
dc.identifier.folio.none.fl_str_mv D91I1049
D91I1049
dc.identifier.idwos.none.fl_str_mv WOS:A1995RR95200008
dc.identifier.isi.none.fl_str_mv WOS:A1995RR95200008
dc.identifier.issn.none.fl_str_mv 0168-1656
dc.identifier.uri.none.fl_str_mv https://hdl.handle.net/10533/197267
identifier_str_mv 0
D91I1049
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url https://hdl.handle.net/10533/197267
dc.language.*.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv instname: Conicyt
reponame: Repositorio Digital RI2.0
instname: Conicyt
reponame: Repositorio Digital RI2.0
dc.relation.doi.none.fl_str_mv 10.1016/0168-1656(95)00067-Z
dc.relation.projectid.none.fl_str_mv info:eu-repo/grantAgreement/Fondef/D91I1049
dc.relation.set.none.fl_str_mv info:eu-repo/semantics/dataset/hdl.handle.net/10533/93477
dc.relation.uri.none.fl_str_mv https://doi.org/10.1016/0168-1656(95)00067-Z
dc.rights.driver.none.fl_str_mv info:eu-repo/semantics/openAccess
eu_rights_str_mv openAccess
dc.coverage.spatial.none.fl_str_mv AMSTERDAM
dc.publisher.none.fl_str_mv ELSEVIER SCIENCE BV
publisher.none.fl_str_mv ELSEVIER SCIENCE BV
repository.name.fl_str_mv Repositorio ANID
repository.mail.fl_str_mv aletelier@anid.cl
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