Characterisation of enzymatically oxidised lignosulfonates and their application on lignocellulosic fabrics

Detalhes bibliográficos
Autor(a) principal: Kim, Suyeon
Data de Publicação: 2009
Outros Autores: Silva, Carla Manuela Pereira Marinho da, Zille, Andrea, López, C., Evtuguin, D. V., Paulo, Artur Cavaco
Tipo de documento: Artigo
Idioma: eng
Título da fonte: Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos)
Texto Completo: http://hdl.handle.net/1822/17304
Resumo: The ‘double function’ of laccase, from the ascomycete Myceliophthora, to depolymerise/polymerise lignin was studied in this work. A lignosulfonate (LS) compound was oxidised by enzymatic action and several techniques were applied to measure the polymeric changes obtained. This study was focused on the attachment level of the oxidised LS at the flax surface. RESULTS: Modified solutions were studied in terms of surface charge. Zeta potential values obtained showed an increase of polymerisation after several days of incubation. The change in molecular weight after LS polymerisation was detected using gel permeation chromatography. An increase of 1700 Da was achieved. Fourier transform infrared and UV-visible spectroscopy techniques were applied and the results showed an increase of the degree of polymerisation. The colour strength of flax fabrics incubated with oxidised LS solutions was also measured and an increase of K/S (K, absorption coefficient; S, scattering coefficient) after enzymatic oxidation was observed. CONCLUSION: The oxidised lignin products obtained show good potential for use in natural surface modification of textile materials containing flavonoids. These findings have important practical implications for lignocellulosic fibre coloration, where new polymers can replace harsh chemicals in the textile industry. Copyright © 2009 Society of Chemical Industry
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spelling Characterisation of enzymatically oxidised lignosulfonates and their application on lignocellulosic fabricsFTIRGel permeation chromatography (GPC)LaccaseLignosulfonatesUV-visible spectroscopyScience & TechnologyThe ‘double function’ of laccase, from the ascomycete Myceliophthora, to depolymerise/polymerise lignin was studied in this work. A lignosulfonate (LS) compound was oxidised by enzymatic action and several techniques were applied to measure the polymeric changes obtained. This study was focused on the attachment level of the oxidised LS at the flax surface. RESULTS: Modified solutions were studied in terms of surface charge. Zeta potential values obtained showed an increase of polymerisation after several days of incubation. The change in molecular weight after LS polymerisation was detected using gel permeation chromatography. An increase of 1700 Da was achieved. Fourier transform infrared and UV-visible spectroscopy techniques were applied and the results showed an increase of the degree of polymerisation. The colour strength of flax fabrics incubated with oxidised LS solutions was also measured and an increase of K/S (K, absorption coefficient; S, scattering coefficient) after enzymatic oxidation was observed. CONCLUSION: The oxidised lignin products obtained show good potential for use in natural surface modification of textile materials containing flavonoids. These findings have important practical implications for lignocellulosic fibre coloration, where new polymers can replace harsh chemicals in the textile industry. Copyright © 2009 Society of Chemical IndustryWileyUniversidade do MinhoKim, SuyeonSilva, Carla Manuela Pereira Marinho daZille, AndreaLópez, C.Evtuguin, D. V.Paulo, Artur Cavaco20092009-01-01T00:00:00Zinfo:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/articleapplication/pdfhttp://hdl.handle.net/1822/17304eng1097-012610.1002/pi.2600info: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:RCAAP2023-07-21T12:25:14Zoai:repositorium.sdum.uminho.pt:1822/17304Portal AgregadorONGhttps://www.rcaap.pt/oai/openaireopendoar:71602024-03-19T19:19:27.198394Repositório 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 Characterisation of enzymatically oxidised lignosulfonates and their application on lignocellulosic fabrics
title Characterisation of enzymatically oxidised lignosulfonates and their application on lignocellulosic fabrics
spellingShingle Characterisation of enzymatically oxidised lignosulfonates and their application on lignocellulosic fabrics
Kim, Suyeon
FTIR
Gel permeation chromatography (GPC)
Laccase
Lignosulfonates
UV-visible spectroscopy
Science & Technology
title_short Characterisation of enzymatically oxidised lignosulfonates and their application on lignocellulosic fabrics
title_full Characterisation of enzymatically oxidised lignosulfonates and their application on lignocellulosic fabrics
title_fullStr Characterisation of enzymatically oxidised lignosulfonates and their application on lignocellulosic fabrics
title_full_unstemmed Characterisation of enzymatically oxidised lignosulfonates and their application on lignocellulosic fabrics
title_sort Characterisation of enzymatically oxidised lignosulfonates and their application on lignocellulosic fabrics
author Kim, Suyeon
author_facet Kim, Suyeon
Silva, Carla Manuela Pereira Marinho da
Zille, Andrea
López, C.
Evtuguin, D. V.
Paulo, Artur Cavaco
author_role author
author2 Silva, Carla Manuela Pereira Marinho da
Zille, Andrea
López, C.
Evtuguin, D. V.
Paulo, Artur Cavaco
author2_role author
author
author
author
author
dc.contributor.none.fl_str_mv Universidade do Minho
dc.contributor.author.fl_str_mv Kim, Suyeon
Silva, Carla Manuela Pereira Marinho da
Zille, Andrea
López, C.
Evtuguin, D. V.
Paulo, Artur Cavaco
dc.subject.por.fl_str_mv FTIR
Gel permeation chromatography (GPC)
Laccase
Lignosulfonates
UV-visible spectroscopy
Science & Technology
topic FTIR
Gel permeation chromatography (GPC)
Laccase
Lignosulfonates
UV-visible spectroscopy
Science & Technology
description The ‘double function’ of laccase, from the ascomycete Myceliophthora, to depolymerise/polymerise lignin was studied in this work. A lignosulfonate (LS) compound was oxidised by enzymatic action and several techniques were applied to measure the polymeric changes obtained. This study was focused on the attachment level of the oxidised LS at the flax surface. RESULTS: Modified solutions were studied in terms of surface charge. Zeta potential values obtained showed an increase of polymerisation after several days of incubation. The change in molecular weight after LS polymerisation was detected using gel permeation chromatography. An increase of 1700 Da was achieved. Fourier transform infrared and UV-visible spectroscopy techniques were applied and the results showed an increase of the degree of polymerisation. The colour strength of flax fabrics incubated with oxidised LS solutions was also measured and an increase of K/S (K, absorption coefficient; S, scattering coefficient) after enzymatic oxidation was observed. CONCLUSION: The oxidised lignin products obtained show good potential for use in natural surface modification of textile materials containing flavonoids. These findings have important practical implications for lignocellulosic fibre coloration, where new polymers can replace harsh chemicals in the textile industry. Copyright © 2009 Society of Chemical Industry
publishDate 2009
dc.date.none.fl_str_mv 2009
2009-01-01T00:00:00Z
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/1822/17304
url http://hdl.handle.net/1822/17304
dc.language.iso.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv 1097-0126
10.1002/pi.2600
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eu_rights_str_mv openAccess
dc.format.none.fl_str_mv application/pdf
dc.publisher.none.fl_str_mv Wiley
publisher.none.fl_str_mv Wiley
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
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reponame_str Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos)
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