Enzymatic treatments to improve mechanical properties and surface hydrophobicity of jute fiber membranes
Autor(a) principal: | |
---|---|
Data de Publicação: | 2016 |
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/1822/41025 |
Resumo: | Fiber membranes prepared from jute fragments can be valuable, low cost, and renewable. They have broad application prospects in packing bags, geotextiles, filters, and composite reinforcements. Traditionally, chemical adhesives have been used to improve the properties of jute fiber membranes. A series of new laccase, laccase/mediator systems, and multi-enzyme synergisms were attempted. After the laccase treatment of jute fragments, the mechanical properties and surface hydrophobicity of the produced fiber membranes increased because of the cross-coupling of lignins with ether bonds mediated by laccase. The optimum conditions were a buffer pH of 4.5 and an incubation temperature of 60 °C with 0.92 U/mL laccase for 3 h. Laccase/guaiacol and laccase/alkali lignin treatments resulted in remarkable increases in the mechanical properties; in contrast, the laccase/2,2-azino-bis-(3-ethylthiazoline-6-sulfonate) (ABTS) and laccase/2,6-dimethoxyphenol treatments led to a decrease. The laccase/ guaiacol system was favorable to the surface hydrophobicity of jute fiber membranes. However, the laccase/alkali lignin system had the opposite effect. Xylanase/laccase and cellulase/laccase combined treatments were able to enhance both the mechanical properties and the surface hydrophobicity of jute fiber membranes. Among these, cellulase/laccase treatment performed better; compared to mechanical properties, the surface hydrophobicity of the jute fiber membranes showed only a slight increase after the enzymatic multi-step processes. |
id |
RCAP_d6655bce60791b842088cadeb937f10e |
---|---|
oai_identifier_str |
oai:repositorium.sdum.uminho.pt:1822/41025 |
network_acronym_str |
RCAP |
network_name_str |
Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) |
repository_id_str |
7160 |
spelling |
Enzymatic treatments to improve mechanical properties and surface hydrophobicity of jute fiber membranesNatural fiberFiber membraneLaccaseMediatorXylanaseCellulaseEngenharia e Tecnologia::Biotecnologia IndustrialScience & TechnologyFiber membranes prepared from jute fragments can be valuable, low cost, and renewable. They have broad application prospects in packing bags, geotextiles, filters, and composite reinforcements. Traditionally, chemical adhesives have been used to improve the properties of jute fiber membranes. A series of new laccase, laccase/mediator systems, and multi-enzyme synergisms were attempted. After the laccase treatment of jute fragments, the mechanical properties and surface hydrophobicity of the produced fiber membranes increased because of the cross-coupling of lignins with ether bonds mediated by laccase. The optimum conditions were a buffer pH of 4.5 and an incubation temperature of 60 °C with 0.92 U/mL laccase for 3 h. Laccase/guaiacol and laccase/alkali lignin treatments resulted in remarkable increases in the mechanical properties; in contrast, the laccase/2,2-azino-bis-(3-ethylthiazoline-6-sulfonate) (ABTS) and laccase/2,6-dimethoxyphenol treatments led to a decrease. The laccase/ guaiacol system was favorable to the surface hydrophobicity of jute fiber membranes. However, the laccase/alkali lignin system had the opposite effect. Xylanase/laccase and cellulase/laccase combined treatments were able to enhance both the mechanical properties and the surface hydrophobicity of jute fiber membranes. Among these, cellulase/laccase treatment performed better; compared to mechanical properties, the surface hydrophobicity of the jute fiber membranes showed only a slight increase after the enzymatic multi-step processes.Financially supported by the National Natural Science Foundation of China (51173071, 21274055), Program for New Century Excellent Talents in University (NCET-12-0883), Program for Changjiang Scholars, Innovative Research Team in University (IRT _15R26), and Fundamental Research Funds for the Central Universities (JUSRP51312B, JUSRP51505)North Carolina State UniversityUniversidade do MinhoDong, AixueFan, XuerongWang, QiangYu, YuanyuanCavaco-Paulo, Artur2016-052016-05-01T00:00:00Zinfo:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/articleapplication/pdfhttp://hdl.handle.net/1822/41025engDong, Aixue; Fan, Xuerong; Wang, Qiang; Yu, Yuanyuan; Paulo, Artur Cavaco, Enzymatic treatments to improve mechanical properties and surface hydrophobicity of jute fiber membranes. BioResources, 11(2), 3289-3302, 20161930-21261930-212610.15376/biores.11.2.3289-3302http://ojs.cnr.ncsu.edu/index.php/BioRes/article/view/BioRes_11_2_3289_Dong_Enzymatic_Treatment_Mechanical_Propertiesinfo: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:RCAAP2023-07-21T12:26:15Zoai:repositorium.sdum.uminho.pt:1822/41025Portal AgregadorONGhttps://www.rcaap.pt/oai/openaireopendoar:71602024-03-19T19:20:37.263722Repositório 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 treatments to improve mechanical properties and surface hydrophobicity of jute fiber membranes |
title |
Enzymatic treatments to improve mechanical properties and surface hydrophobicity of jute fiber membranes |
spellingShingle |
Enzymatic treatments to improve mechanical properties and surface hydrophobicity of jute fiber membranes Dong, Aixue Natural fiber Fiber membrane Laccase Mediator Xylanase Cellulase Engenharia e Tecnologia::Biotecnologia Industrial Science & Technology |
title_short |
Enzymatic treatments to improve mechanical properties and surface hydrophobicity of jute fiber membranes |
title_full |
Enzymatic treatments to improve mechanical properties and surface hydrophobicity of jute fiber membranes |
title_fullStr |
Enzymatic treatments to improve mechanical properties and surface hydrophobicity of jute fiber membranes |
title_full_unstemmed |
Enzymatic treatments to improve mechanical properties and surface hydrophobicity of jute fiber membranes |
title_sort |
Enzymatic treatments to improve mechanical properties and surface hydrophobicity of jute fiber membranes |
author |
Dong, Aixue |
author_facet |
Dong, Aixue Fan, Xuerong Wang, Qiang Yu, Yuanyuan Cavaco-Paulo, Artur |
author_role |
author |
author2 |
Fan, Xuerong Wang, Qiang Yu, Yuanyuan Cavaco-Paulo, Artur |
author2_role |
author author author author |
dc.contributor.none.fl_str_mv |
Universidade do Minho |
dc.contributor.author.fl_str_mv |
Dong, Aixue Fan, Xuerong Wang, Qiang Yu, Yuanyuan Cavaco-Paulo, Artur |
dc.subject.por.fl_str_mv |
Natural fiber Fiber membrane Laccase Mediator Xylanase Cellulase Engenharia e Tecnologia::Biotecnologia Industrial Science & Technology |
topic |
Natural fiber Fiber membrane Laccase Mediator Xylanase Cellulase Engenharia e Tecnologia::Biotecnologia Industrial Science & Technology |
description |
Fiber membranes prepared from jute fragments can be valuable, low cost, and renewable. They have broad application prospects in packing bags, geotextiles, filters, and composite reinforcements. Traditionally, chemical adhesives have been used to improve the properties of jute fiber membranes. A series of new laccase, laccase/mediator systems, and multi-enzyme synergisms were attempted. After the laccase treatment of jute fragments, the mechanical properties and surface hydrophobicity of the produced fiber membranes increased because of the cross-coupling of lignins with ether bonds mediated by laccase. The optimum conditions were a buffer pH of 4.5 and an incubation temperature of 60 °C with 0.92 U/mL laccase for 3 h. Laccase/guaiacol and laccase/alkali lignin treatments resulted in remarkable increases in the mechanical properties; in contrast, the laccase/2,2-azino-bis-(3-ethylthiazoline-6-sulfonate) (ABTS) and laccase/2,6-dimethoxyphenol treatments led to a decrease. The laccase/ guaiacol system was favorable to the surface hydrophobicity of jute fiber membranes. However, the laccase/alkali lignin system had the opposite effect. Xylanase/laccase and cellulase/laccase combined treatments were able to enhance both the mechanical properties and the surface hydrophobicity of jute fiber membranes. Among these, cellulase/laccase treatment performed better; compared to mechanical properties, the surface hydrophobicity of the jute fiber membranes showed only a slight increase after the enzymatic multi-step processes. |
publishDate |
2016 |
dc.date.none.fl_str_mv |
2016-05 2016-05-01T00:00:00Z |
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/1822/41025 |
url |
http://hdl.handle.net/1822/41025 |
dc.language.iso.fl_str_mv |
eng |
language |
eng |
dc.relation.none.fl_str_mv |
Dong, Aixue; Fan, Xuerong; Wang, Qiang; Yu, Yuanyuan; Paulo, Artur Cavaco, Enzymatic treatments to improve mechanical properties and surface hydrophobicity of jute fiber membranes. BioResources, 11(2), 3289-3302, 2016 1930-2126 1930-2126 10.15376/biores.11.2.3289-3302 http://ojs.cnr.ncsu.edu/index.php/BioRes/article/view/BioRes_11_2_3289_Dong_Enzymatic_Treatment_Mechanical_Properties |
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 |
North Carolina State University |
publisher.none.fl_str_mv |
North Carolina State University |
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_ |
1799132669565468672 |