Polymerization of lignosulfonates by the laccase-HBT (1-hydroxybenzotriazole) system improves dispersibility
Autor(a) principal: | |
---|---|
Data de Publicação: | 2010 |
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/1822/14756 |
Resumo: | The ability of laccases from Trametes villosa (TvL), Myceliophthora thermophila (MtL), Trametes hirsuta (ThL) and Bacillus subtilis (BsL) to improve the dispersion properties of calcium lignosulfonates 398 in the presence of HBT as a mediator was investigated. Size exclusion chromatography showed an extensive increase in molecular weight of the samples incubated with TvL and ThL by 107% and 572% from 28400 Da after 17 h of incubation, respectively. Interestingly, FTIR spectroscopy, 13C NMR and Py-GC/MS analysis of the treated samples suggested no substantial changes in the aromatic signal of the lignosulfonates, a good indication of the ability of TvL/ThL-HBT systems to limit their effect on functional groups without degrading the lignin backbone. Further, the enzymatic treatments led to a general increase in the dispersion properties, indeed a welcome development for its application in polymer blends. |
id |
RCAP_174f10869cc6bd23bd8aad76427477ca |
---|---|
oai_identifier_str |
oai:repositorium.sdum.uminho.pt:1822/14756 |
network_acronym_str |
RCAP |
network_name_str |
Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) |
repository_id_str |
7160 |
spelling |
Polymerization of lignosulfonates by the laccase-HBT (1-hydroxybenzotriazole) system improves dispersibilityCalcium lignosulfonatesLaccaseEnzymatic modificationDispersionPolymerizationScience & TechnologyThe ability of laccases from Trametes villosa (TvL), Myceliophthora thermophila (MtL), Trametes hirsuta (ThL) and Bacillus subtilis (BsL) to improve the dispersion properties of calcium lignosulfonates 398 in the presence of HBT as a mediator was investigated. Size exclusion chromatography showed an extensive increase in molecular weight of the samples incubated with TvL and ThL by 107% and 572% from 28400 Da after 17 h of incubation, respectively. Interestingly, FTIR spectroscopy, 13C NMR and Py-GC/MS analysis of the treated samples suggested no substantial changes in the aromatic signal of the lignosulfonates, a good indication of the ability of TvL/ThL-HBT systems to limit their effect on functional groups without degrading the lignin backbone. Further, the enzymatic treatments led to a general increase in the dispersion properties, indeed a welcome development for its application in polymer blends.Financial support from the BIORENEW EU-project (NMP2-CT-2006-26456), Austrian Academic Exchange Programme (OEAD) and the Spanish projects BIO2007-28720-E, BIO2008-01533, and AGL2008-00709 is acknowledged.ElsevierUniversidade do MinhoPrasetyo, E. N.Kudanga, T.Østergaard, L.Rencoret, J.Gutiérrez, A.Río, J. C. delSantos, J. I.Nieto, L.Jiménez-Barbero, JesúsMartínez, Angel T.Li, J.Gellerstedt, G.Lepifre, S.Silva, Carla Manuela Pereira Marinho daKim, SPaulo, Artur CavacoKlausen, B. S.Lutnaes, B. F.Nyanhongo, Gibson S.Guebitz, G. M.20102010-01-01T00:00:00Zinfo:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/articleapplication/pdfhttp://hdl.handle.net/1822/14756eng0960-852410.1016/j.biortech.2010.01.04820176477info: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:RCAAP2023-07-21T12:45:55Zoai:repositorium.sdum.uminho.pt:1822/14756Portal AgregadorONGhttps://www.rcaap.pt/oai/openaireopendoar:71602024-03-19T19:43:51.788717Repositório 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 |
Polymerization of lignosulfonates by the laccase-HBT (1-hydroxybenzotriazole) system improves dispersibility |
title |
Polymerization of lignosulfonates by the laccase-HBT (1-hydroxybenzotriazole) system improves dispersibility |
spellingShingle |
Polymerization of lignosulfonates by the laccase-HBT (1-hydroxybenzotriazole) system improves dispersibility Prasetyo, E. N. Calcium lignosulfonates Laccase Enzymatic modification Dispersion Polymerization Science & Technology |
title_short |
Polymerization of lignosulfonates by the laccase-HBT (1-hydroxybenzotriazole) system improves dispersibility |
title_full |
Polymerization of lignosulfonates by the laccase-HBT (1-hydroxybenzotriazole) system improves dispersibility |
title_fullStr |
Polymerization of lignosulfonates by the laccase-HBT (1-hydroxybenzotriazole) system improves dispersibility |
title_full_unstemmed |
Polymerization of lignosulfonates by the laccase-HBT (1-hydroxybenzotriazole) system improves dispersibility |
title_sort |
Polymerization of lignosulfonates by the laccase-HBT (1-hydroxybenzotriazole) system improves dispersibility |
author |
Prasetyo, E. N. |
author_facet |
Prasetyo, E. N. Kudanga, T. Østergaard, L. Rencoret, J. Gutiérrez, A. Río, J. C. del Santos, J. I. Nieto, L. Jiménez-Barbero, Jesús Martínez, Angel T. Li, J. Gellerstedt, G. Lepifre, S. Silva, Carla Manuela Pereira Marinho da Kim, S Paulo, Artur Cavaco Klausen, B. S. Lutnaes, B. F. Nyanhongo, Gibson S. Guebitz, G. M. |
author_role |
author |
author2 |
Kudanga, T. Østergaard, L. Rencoret, J. Gutiérrez, A. Río, J. C. del Santos, J. I. Nieto, L. Jiménez-Barbero, Jesús Martínez, Angel T. Li, J. Gellerstedt, G. Lepifre, S. Silva, Carla Manuela Pereira Marinho da Kim, S Paulo, Artur Cavaco Klausen, B. S. Lutnaes, B. F. Nyanhongo, Gibson S. Guebitz, G. M. |
author2_role |
author author author author author author author author author author author author author author author author author author author |
dc.contributor.none.fl_str_mv |
Universidade do Minho |
dc.contributor.author.fl_str_mv |
Prasetyo, E. N. Kudanga, T. Østergaard, L. Rencoret, J. Gutiérrez, A. Río, J. C. del Santos, J. I. Nieto, L. Jiménez-Barbero, Jesús Martínez, Angel T. Li, J. Gellerstedt, G. Lepifre, S. Silva, Carla Manuela Pereira Marinho da Kim, S Paulo, Artur Cavaco Klausen, B. S. Lutnaes, B. F. Nyanhongo, Gibson S. Guebitz, G. M. |
dc.subject.por.fl_str_mv |
Calcium lignosulfonates Laccase Enzymatic modification Dispersion Polymerization Science & Technology |
topic |
Calcium lignosulfonates Laccase Enzymatic modification Dispersion Polymerization Science & Technology |
description |
The ability of laccases from Trametes villosa (TvL), Myceliophthora thermophila (MtL), Trametes hirsuta (ThL) and Bacillus subtilis (BsL) to improve the dispersion properties of calcium lignosulfonates 398 in the presence of HBT as a mediator was investigated. Size exclusion chromatography showed an extensive increase in molecular weight of the samples incubated with TvL and ThL by 107% and 572% from 28400 Da after 17 h of incubation, respectively. Interestingly, FTIR spectroscopy, 13C NMR and Py-GC/MS analysis of the treated samples suggested no substantial changes in the aromatic signal of the lignosulfonates, a good indication of the ability of TvL/ThL-HBT systems to limit their effect on functional groups without degrading the lignin backbone. Further, the enzymatic treatments led to a general increase in the dispersion properties, indeed a welcome development for its application in polymer blends. |
publishDate |
2010 |
dc.date.none.fl_str_mv |
2010 2010-01-01T00:00:00Z |
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/1822/14756 |
url |
http://hdl.handle.net/1822/14756 |
dc.language.iso.fl_str_mv |
eng |
language |
eng |
dc.relation.none.fl_str_mv |
0960-8524 10.1016/j.biortech.2010.01.048 20176477 |
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 |
Elsevier |
publisher.none.fl_str_mv |
Elsevier |
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 |
|
_version_ |
1799132997987860480 |