Enzymatic treatment of lyocell - clarification of depilling mechanisms

Detalhes bibliográficos
Autor(a) principal: Morgado, José
Data de Publicação: 2000
Outros Autores: Paulo, Artur Cavaco, Rousselle, Marie-Alice
Tipo de documento: Artigo
Idioma: eng
Título da fonte: Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos)
Texto Completo: http://hdl.handle.net/1822/2615
Resumo: We have characterized cellulose from lhe original structure of a lyocell fabric, from pills mechanically removed from lhe surface with a razor blade and from cellulase depilling process We find that cellulases first attack the cellulose from the microfibrils on the surface of the fabric because they are more exterrna!!y exposed lhan the cellulose of lhe original fabric structure and have the same charaeteristics in tems of molecullar weight, polydispersitty, and crystallinity index in lhe base fabric. Cellulose from me microfibrils removed from lhe base fabric by lhe cellulase and recovered frorn lhe liquor shows significantly increased polydispersity, therefore indicating Ihat lhe microfibrils have been widdy attacked by lhe enzymes, Celulases prove to be thorough surface finishing agents, since they change only the fiber surface, not lhe crystallinity.
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spelling Enzymatic treatment of lyocell - clarification of depilling mechanismsScience & TechnologyWe have characterized cellulose from lhe original structure of a lyocell fabric, from pills mechanically removed from lhe surface with a razor blade and from cellulase depilling process We find that cellulases first attack the cellulose from the microfibrils on the surface of the fabric because they are more exterrna!!y exposed lhan the cellulose of lhe original fabric structure and have the same charaeteristics in tems of molecullar weight, polydispersitty, and crystallinity index in lhe base fabric. Cellulose from me microfibrils removed from lhe base fabric by lhe cellulase and recovered frorn lhe liquor shows significantly increased polydispersity, therefore indicating Ihat lhe microfibrils have been widdy attacked by lhe enzymes, Celulases prove to be thorough surface finishing agents, since they change only the fiber surface, not lhe crystallinity.SAGE PublicationsUniversidade do MinhoMorgado, JoséPaulo, Artur CavacoRousselle, Marie-Alice2000-082000-08-01T00:00:00Zinfo:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/articleapplication/pdfhttp://hdl.handle.net/1822/2615eng"Textile Research Journal". ISSN 0040-5175. 70:8 (Aug. 2000) 696-699.0040-517510.1177/004051750007000807info:eu-repo/semantics/openAccessreponame:Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos)instname:Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informaçãoinstacron:RCAAP2023-07-21T12:10:54Zoai:repositorium.sdum.uminho.pt:1822/2615Portal AgregadorONGhttps://www.rcaap.pt/oai/openaireopendoar:71602024-03-19T19:02:35.311660Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) - Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informaçãofalse
dc.title.none.fl_str_mv Enzymatic treatment of lyocell - clarification of depilling mechanisms
title Enzymatic treatment of lyocell - clarification of depilling mechanisms
spellingShingle Enzymatic treatment of lyocell - clarification of depilling mechanisms
Morgado, José
Science & Technology
title_short Enzymatic treatment of lyocell - clarification of depilling mechanisms
title_full Enzymatic treatment of lyocell - clarification of depilling mechanisms
title_fullStr Enzymatic treatment of lyocell - clarification of depilling mechanisms
title_full_unstemmed Enzymatic treatment of lyocell - clarification of depilling mechanisms
title_sort Enzymatic treatment of lyocell - clarification of depilling mechanisms
author Morgado, José
author_facet Morgado, José
Paulo, Artur Cavaco
Rousselle, Marie-Alice
author_role author
author2 Paulo, Artur Cavaco
Rousselle, Marie-Alice
author2_role author
author
dc.contributor.none.fl_str_mv Universidade do Minho
dc.contributor.author.fl_str_mv Morgado, José
Paulo, Artur Cavaco
Rousselle, Marie-Alice
dc.subject.por.fl_str_mv Science & Technology
topic Science & Technology
description We have characterized cellulose from lhe original structure of a lyocell fabric, from pills mechanically removed from lhe surface with a razor blade and from cellulase depilling process We find that cellulases first attack the cellulose from the microfibrils on the surface of the fabric because they are more exterrna!!y exposed lhan the cellulose of lhe original fabric structure and have the same charaeteristics in tems of molecullar weight, polydispersitty, and crystallinity index in lhe base fabric. Cellulose from me microfibrils removed from lhe base fabric by lhe cellulase and recovered frorn lhe liquor shows significantly increased polydispersity, therefore indicating Ihat lhe microfibrils have been widdy attacked by lhe enzymes, Celulases prove to be thorough surface finishing agents, since they change only the fiber surface, not lhe crystallinity.
publishDate 2000
dc.date.none.fl_str_mv 2000-08
2000-08-01T00:00:00Z
dc.type.status.fl_str_mv info:eu-repo/semantics/publishedVersion
dc.type.driver.fl_str_mv info:eu-repo/semantics/article
format article
status_str publishedVersion
dc.identifier.uri.fl_str_mv http://hdl.handle.net/1822/2615
url http://hdl.handle.net/1822/2615
dc.language.iso.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv "Textile Research Journal". ISSN 0040-5175. 70:8 (Aug. 2000) 696-699.
0040-5175
10.1177/004051750007000807
dc.rights.driver.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 SAGE Publications
publisher.none.fl_str_mv SAGE Publications
dc.source.none.fl_str_mv reponame:Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos)
instname:Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informação
instacron:RCAAP
instname_str Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informação
instacron_str RCAAP
institution RCAAP
reponame_str Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos)
collection Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos)
repository.name.fl_str_mv Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) - Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informação
repository.mail.fl_str_mv
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