Indigo-cellulase interactions
Autor(a) principal: | |
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Data de Publicação: | 2000 |
Outros Autores: | , , |
Tipo de documento: | Artigo |
Idioma: | eng |
Título da fonte: | Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) |
Texto Completo: | http://hdl.handle.net/1822/12695 |
Resumo: | We have studied the affinity of cellulases from different fungal origins for insoluble indigo dye. Adsorption studies have shown that "acid cellulases" from Trichoderma reesei have a higher affinity for indigo dye than "neutral cellulases" of Humicola insolens. The particle size of indigo dye agglomerates is influenced by cellulase origin and concentra tion. Evidence shows that the nonpolar residues present in higher percentages in the neutral cellulases of H. insolens seem to play an important role in the agglomeration of indigo dye particles and probably in the reduction of backstaining. Furthermore, we investigate the effects of different levels of mechanical action on cellulase adsorption on undyed and indigo dyed fabrics. |
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Indigo-cellulase interactionsScience & TechnologyWe have studied the affinity of cellulases from different fungal origins for insoluble indigo dye. Adsorption studies have shown that "acid cellulases" from Trichoderma reesei have a higher affinity for indigo dye than "neutral cellulases" of Humicola insolens. The particle size of indigo dye agglomerates is influenced by cellulase origin and concentra tion. Evidence shows that the nonpolar residues present in higher percentages in the neutral cellulases of H. insolens seem to play an important role in the agglomeration of indigo dye particles and probably in the reduction of backstaining. Furthermore, we investigate the effects of different levels of mechanical action on cellulase adsorption on undyed and indigo dyed fabrics.SAGEUniversidade do MinhoCampos, Raquel deAndreaus, JuergenGübitz, Georg M.Paulo, Artur Cavaco2000-062000-06-01T00:00:00Zinfo:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/articleapplication/pdfhttp://hdl.handle.net/1822/12695eng0040-517510.1177/004051750007000610info: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:RCAAP2023-07-21T12:50:46Zoai:repositorium.sdum.uminho.pt:1822/12695Portal AgregadorONGhttps://www.rcaap.pt/oai/openaireopendoar:71602024-03-19T19:49:30.743971Repositório 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 |
Indigo-cellulase interactions |
title |
Indigo-cellulase interactions |
spellingShingle |
Indigo-cellulase interactions Campos, Raquel de Science & Technology |
title_short |
Indigo-cellulase interactions |
title_full |
Indigo-cellulase interactions |
title_fullStr |
Indigo-cellulase interactions |
title_full_unstemmed |
Indigo-cellulase interactions |
title_sort |
Indigo-cellulase interactions |
author |
Campos, Raquel de |
author_facet |
Campos, Raquel de Andreaus, Juergen Gübitz, Georg M. Paulo, Artur Cavaco |
author_role |
author |
author2 |
Andreaus, Juergen Gübitz, Georg M. Paulo, Artur Cavaco |
author2_role |
author author author |
dc.contributor.none.fl_str_mv |
Universidade do Minho |
dc.contributor.author.fl_str_mv |
Campos, Raquel de Andreaus, Juergen Gübitz, Georg M. Paulo, Artur Cavaco |
dc.subject.por.fl_str_mv |
Science & Technology |
topic |
Science & Technology |
description |
We have studied the affinity of cellulases from different fungal origins for insoluble indigo dye. Adsorption studies have shown that "acid cellulases" from Trichoderma reesei have a higher affinity for indigo dye than "neutral cellulases" of Humicola insolens. The particle size of indigo dye agglomerates is influenced by cellulase origin and concentra tion. Evidence shows that the nonpolar residues present in higher percentages in the neutral cellulases of H. insolens seem to play an important role in the agglomeration of indigo dye particles and probably in the reduction of backstaining. Furthermore, we investigate the effects of different levels of mechanical action on cellulase adsorption on undyed and indigo dyed fabrics. |
publishDate |
2000 |
dc.date.none.fl_str_mv |
2000-06 2000-06-01T00:00:00Z |
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/1822/12695 |
url |
http://hdl.handle.net/1822/12695 |
dc.language.iso.fl_str_mv |
eng |
language |
eng |
dc.relation.none.fl_str_mv |
0040-5175 10.1177/004051750007000610 |
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 |
publisher.none.fl_str_mv |
SAGE |
dc.source.none.fl_str_mv |
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Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informação |
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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 |
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