Characterization, biodegradation and cytotoxicity of thermoplastic starch and ethylene-vinyl alcohol copolymer blends

Ethylene-vinyl alcohol samples containing 27 and 38 % ethylene were used to prepare blends containing 30 and 50 % thermoplastic starch (TPS) plasticized with glycerol. Their biodegradability and cytotoxicity were studied by different techniques (XRD, DSC, TGA, CA, ATR-FTIR, SEM). TPS presence signif...

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Detalhes bibliográficos
Autores: Pérez Blanco, C., Huang-Lin, Elisa, Abrusci Bernal, Concepción
Tipo de documento: artigo
Data de publicação:2022
País:España
Recursos:Universidad Autónoma de Madrid
Repositório:Biblos-e Archivo. Repositorio Institucional de la UAM
Idioma:inglês
OAI Identifier:oai:repositorio.uam.es:10486/705886
Acesso em linha:http://hdl.handle.net/10486/705886
https://dx.doi.org/10.1016/j.carbpol.2022.120085
Access Level:Acceso aberto
Palavra-chave:Bacillus
Biodegradation
Cytotoxicity assay
Ethylene-vinyl alcohol (EVOH)
Thermoplastic starch (TPS)
Biología y Biomedicina / Biología
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spelling Characterization, biodegradation and cytotoxicity of thermoplastic starch and ethylene-vinyl alcohol copolymer blendsPérez Blanco, C.Huang-Lin, ElisaAbrusci Bernal, ConcepciónBacillusBiodegradationCytotoxicity assayEthylene-vinyl alcohol (EVOH)Thermoplastic starch (TPS)Biología y Biomedicina / BiologíaEthylene-vinyl alcohol samples containing 27 and 38 % ethylene were used to prepare blends containing 30 and 50 % thermoplastic starch (TPS) plasticized with glycerol. Their biodegradability and cytotoxicity were studied by different techniques (XRD, DSC, TGA, CA, ATR-FTIR, SEM). TPS presence significantly affected copolymer behavior, as confirmed by the appearance of O–H IR 1000–1170 cm− 1 bands and overall reduction of EVOH crystallinity, melting point, thermal stability and hydrophobicity. Biodegradation was more efficient in the presence of TPS and resulted in the formation of a robust biofilm by a consortium of three bacteria. A lower ethylene content facilitated biodegradation, making the material easier to metabolize. The mineralization percentages obtained after a 40-day bioassay at 45 ◦C were up to 66 % (EVOH-27/TPS 50:50). In vitro cytotoxicity assay demonstrated no cytotoxicity before and after biodegradation. EVOH/TPS blends are presented as a potential environmentally friendly alternative to pure synthetic polymersThe authors want to thank the Spanish Ministry of Science and Innovation for financial support (project PID2019-104812GB-I00) and FUAM, Universidad Autonoma de Madrid, Spain (project n◦ 820053)ElsevierDepartamento de Biología MolecularFacultad de Ciencias20222022-09-08research articlehttp://purl.org/coar/resource_type/c_2df8fbb1VoRhttp://purl.org/coar/version/c_970fb48d4fbd8a85info:eu-repo/semantics/articleapplication/pdfhttp://hdl.handle.net/10486/705886https://dx.doi.org/10.1016/j.carbpol.2022.120085reponame:Biblos-e Archivo. Repositorio Institucional de la UAMinstname:Universidad Autónoma de MadridInglésengopen accesshttp://purl.org/coar/access_right/c_abf2info:eu-repo/semantics/openAccessoai:repositorio.uam.es:10486/7058862026-06-23T12:46:27Z
dc.title.none.fl_str_mv Characterization, biodegradation and cytotoxicity of thermoplastic starch and ethylene-vinyl alcohol copolymer blends
title Characterization, biodegradation and cytotoxicity of thermoplastic starch and ethylene-vinyl alcohol copolymer blends
spellingShingle Characterization, biodegradation and cytotoxicity of thermoplastic starch and ethylene-vinyl alcohol copolymer blends
Pérez Blanco, C.
Bacillus
Biodegradation
Cytotoxicity assay
Ethylene-vinyl alcohol (EVOH)
Thermoplastic starch (TPS)
Biología y Biomedicina / Biología
title_short Characterization, biodegradation and cytotoxicity of thermoplastic starch and ethylene-vinyl alcohol copolymer blends
title_full Characterization, biodegradation and cytotoxicity of thermoplastic starch and ethylene-vinyl alcohol copolymer blends
title_fullStr Characterization, biodegradation and cytotoxicity of thermoplastic starch and ethylene-vinyl alcohol copolymer blends
title_full_unstemmed Characterization, biodegradation and cytotoxicity of thermoplastic starch and ethylene-vinyl alcohol copolymer blends
title_sort Characterization, biodegradation and cytotoxicity of thermoplastic starch and ethylene-vinyl alcohol copolymer blends
dc.creator.none.fl_str_mv Pérez Blanco, C.
Huang-Lin, Elisa
Abrusci Bernal, Concepción
author Pérez Blanco, C.
author_facet Pérez Blanco, C.
Huang-Lin, Elisa
Abrusci Bernal, Concepción
author_role author
author2 Huang-Lin, Elisa
Abrusci Bernal, Concepción
author2_role author
author
dc.contributor.none.fl_str_mv Departamento de Biología Molecular
Facultad de Ciencias
dc.subject.none.fl_str_mv Bacillus
Biodegradation
Cytotoxicity assay
Ethylene-vinyl alcohol (EVOH)
Thermoplastic starch (TPS)
Biología y Biomedicina / Biología
topic Bacillus
Biodegradation
Cytotoxicity assay
Ethylene-vinyl alcohol (EVOH)
Thermoplastic starch (TPS)
Biología y Biomedicina / Biología
description Ethylene-vinyl alcohol samples containing 27 and 38 % ethylene were used to prepare blends containing 30 and 50 % thermoplastic starch (TPS) plasticized with glycerol. Their biodegradability and cytotoxicity were studied by different techniques (XRD, DSC, TGA, CA, ATR-FTIR, SEM). TPS presence significantly affected copolymer behavior, as confirmed by the appearance of O–H IR 1000–1170 cm− 1 bands and overall reduction of EVOH crystallinity, melting point, thermal stability and hydrophobicity. Biodegradation was more efficient in the presence of TPS and resulted in the formation of a robust biofilm by a consortium of three bacteria. A lower ethylene content facilitated biodegradation, making the material easier to metabolize. The mineralization percentages obtained after a 40-day bioassay at 45 ◦C were up to 66 % (EVOH-27/TPS 50:50). In vitro cytotoxicity assay demonstrated no cytotoxicity before and after biodegradation. EVOH/TPS blends are presented as a potential environmentally friendly alternative to pure synthetic polymers
publishDate 2022
dc.date.none.fl_str_mv 2022
2022-09-08
dc.type.none.fl_str_mv research article
http://purl.org/coar/resource_type/c_2df8fbb1
VoR
http://purl.org/coar/version/c_970fb48d4fbd8a85
dc.type.openaire.fl_str_mv info:eu-repo/semantics/article
format article
dc.identifier.none.fl_str_mv http://hdl.handle.net/10486/705886
https://dx.doi.org/10.1016/j.carbpol.2022.120085
url http://hdl.handle.net/10486/705886
https://dx.doi.org/10.1016/j.carbpol.2022.120085
dc.language.none.fl_str_mv Inglés
eng
language_invalid_str_mv Inglés
language eng
dc.rights.none.fl_str_mv open access
http://purl.org/coar/access_right/c_abf2
dc.rights.openaire.fl_str_mv info:eu-repo/semantics/openAccess
rights_invalid_str_mv open access
http://purl.org/coar/access_right/c_abf2
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:Biblos-e Archivo. Repositorio Institucional de la UAM
instname:Universidad Autónoma de Madrid
instname_str Universidad Autónoma de Madrid
reponame_str Biblos-e Archivo. Repositorio Institucional de la UAM
collection Biblos-e Archivo. Repositorio Institucional de la UAM
repository.name.fl_str_mv
repository.mail.fl_str_mv
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