New enzymes with potential for PET surface modification

Detalhes bibliográficos
Autor(a) principal: Fischer-Colbrie, Gudrun
Data de Publicação: 2004
Outros Autores: Heumann, Sonja, Liebminger, Stefan, Almansa, Eva, 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/1822/2653
Resumo: This work describes newly isolated organisms and their potential to modify the surface of polyethylene terephthalate (PET). Out of the different screening processes, four bacterial and five fungal strains were isolated. A PET model substrate was synthesized (bis (benzoyloxyethyl) terephthalate) and used in the screening process, mimicking the polymer in its crucial properties and having the advantage of defined hydrolysis products. On this model substrate, extracellular enzyme preparations from the isolated microorganisms showed a maximum activity of 8.54 nkat/L. All enzyme preparations showed esterase activity on p-nitrophenyl-acetate while no activity was found on p-nitrophenyl decanoate or p-nitrophenyl palmitate. Increased hydrophilicity of PET fabrics after enzyme treatment was found based on rising height and water dissipation measurements.
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spelling New enzymes with potential for PET surface modificationPolyethylene terephthalatePET model substrateBis (benzoyloxyethyl) terephthalateDrop dissipationRising heightScience & TechnologyThis work describes newly isolated organisms and their potential to modify the surface of polyethylene terephthalate (PET). Out of the different screening processes, four bacterial and five fungal strains were isolated. A PET model substrate was synthesized (bis (benzoyloxyethyl) terephthalate) and used in the screening process, mimicking the polymer in its crucial properties and having the advantage of defined hydrolysis products. On this model substrate, extracellular enzyme preparations from the isolated microorganisms showed a maximum activity of 8.54 nkat/L. All enzyme preparations showed esterase activity on p-nitrophenyl-acetate while no activity was found on p-nitrophenyl decanoate or p-nitrophenyl palmitate. Increased hydrophilicity of PET fabrics after enzyme treatment was found based on rising height and water dissipation measurements.Taylor and FrancisUniversidade do MinhoFischer-Colbrie, GudrunHeumann, SonjaLiebminger, StefanAlmansa, EvaPaulo, Artur Cavaco20042004-01-01T00:00:00Zinfo:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/articleapplication/pdfhttp://hdl.handle.net/1822/2653eng"Biocatalysis and biotransformation". ISSN 1024-2422. 22:5-6 (Dec. 2004) 341-346.1024-242210.1080/10242420400024565info: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:RCAAP2023-07-21T12:02:49Zoai:repositorium.sdum.uminho.pt:1822/2653Portal AgregadorONGhttps://www.rcaap.pt/oai/openaireopendoar:71602024-03-19T18:52:53.391753Repositório 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 New enzymes with potential for PET surface modification
title New enzymes with potential for PET surface modification
spellingShingle New enzymes with potential for PET surface modification
Fischer-Colbrie, Gudrun
Polyethylene terephthalate
PET model substrate
Bis (benzoyloxyethyl) terephthalate
Drop dissipation
Rising height
Science & Technology
title_short New enzymes with potential for PET surface modification
title_full New enzymes with potential for PET surface modification
title_fullStr New enzymes with potential for PET surface modification
title_full_unstemmed New enzymes with potential for PET surface modification
title_sort New enzymes with potential for PET surface modification
author Fischer-Colbrie, Gudrun
author_facet Fischer-Colbrie, Gudrun
Heumann, Sonja
Liebminger, Stefan
Almansa, Eva
Paulo, Artur Cavaco
author_role author
author2 Heumann, Sonja
Liebminger, Stefan
Almansa, Eva
Paulo, Artur Cavaco
author2_role author
author
author
author
dc.contributor.none.fl_str_mv Universidade do Minho
dc.contributor.author.fl_str_mv Fischer-Colbrie, Gudrun
Heumann, Sonja
Liebminger, Stefan
Almansa, Eva
Paulo, Artur Cavaco
dc.subject.por.fl_str_mv Polyethylene terephthalate
PET model substrate
Bis (benzoyloxyethyl) terephthalate
Drop dissipation
Rising height
Science & Technology
topic Polyethylene terephthalate
PET model substrate
Bis (benzoyloxyethyl) terephthalate
Drop dissipation
Rising height
Science & Technology
description This work describes newly isolated organisms and their potential to modify the surface of polyethylene terephthalate (PET). Out of the different screening processes, four bacterial and five fungal strains were isolated. A PET model substrate was synthesized (bis (benzoyloxyethyl) terephthalate) and used in the screening process, mimicking the polymer in its crucial properties and having the advantage of defined hydrolysis products. On this model substrate, extracellular enzyme preparations from the isolated microorganisms showed a maximum activity of 8.54 nkat/L. All enzyme preparations showed esterase activity on p-nitrophenyl-acetate while no activity was found on p-nitrophenyl decanoate or p-nitrophenyl palmitate. Increased hydrophilicity of PET fabrics after enzyme treatment was found based on rising height and water dissipation measurements.
publishDate 2004
dc.date.none.fl_str_mv 2004
2004-01-01T00:00:00Z
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/1822/2653
url http://hdl.handle.net/1822/2653
dc.language.iso.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv "Biocatalysis and biotransformation". ISSN 1024-2422. 22:5-6 (Dec. 2004) 341-346.
1024-2422
10.1080/10242420400024565
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 Taylor and Francis
publisher.none.fl_str_mv Taylor and Francis
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_ 1799132305798725632

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