Characterisation of Films Based on Exopolysaccharides from Alteromonas Strains Isolated from French Polynesia Marine Environments
| Autor(a) principal: | |
|---|---|
| Data de Publicação: | 2022 |
| 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/10362/145397 |
Resumo: | LA/P/0140/202019 UID/AGR/04129/2020 LA/P/0037/2020 |
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Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) |
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7160 |
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Characterisation of Films Based on Exopolysaccharides from Alteromonas Strains Isolated from French Polynesia Marine EnvironmentsAlteromonasspexopolysaccharide (EPS)filmsmarine bacteriaChemistry(all)Polymers and PlasticsSDG 14 - Life Below WaterLA/P/0140/202019 UID/AGR/04129/2020 LA/P/0037/2020This work assessed the film-forming capacity of exopolysaccharides (EPS) produced by six Alteromonas strains recently isolated from different marine environments in French Polynesia atolls. The films were transparent and resulted in small colour alterations when applied over a coloured surface (ΔEab below 12.6 in the five different colours tested). Moreover, scanning electron microscopy showed that the EPS films were dense and compact, with a smooth surface. High water vapour permeabilities were observed (2.7–6.1 × 10−11 mol m−1 s−1 Pa−1), which are characteristic of hydrophilic polysaccharide films. The films were also characterised in terms of barrier properties to oxygen and carbon dioxide. Interestingly, different behaviours in terms of their mechanical properties under tensile tests were observed: three of the EPS films were ductile with high elongation at break (ε) (35.6–47.0%), low tensile strength at break (Ꞇ) (4.55–11.7 MPa) and low Young’s modulus (εm) (10–93 MPa), whereas the other three were stiffer and more resistant with a higher Ꞇ (16.6–23.6 MPa), lower ε (2.80–5.58%), and higher εm (597–1100 MPa). These properties demonstrate the potential of Alteromonas sp. EPS films to be applied in different areas such as biomedicine, pharmaceuticals, or food packaging.UCIBIO - Applied Molecular Biosciences UnitDQ - Departamento de QuímicaLAQV@REQUIMTECENIMAT-i3N - Centro de Investigação de Materiais (Lab. Associado I3N)DCM - Departamento de Ciência dos MateriaisRUNConcórdio-Reis, PatríciaPereira, João R.Alves, Vítor D.Nabais, Ana R.Neves, Luísa A.Marques, Ana C.Fortunato, ElviraMoppert, XavierGuézennec, JeanReis, Maria A. M.Freitas, Filomena2022-11-10T22:13:25Z2022-102022-10-01T00:00:00Zinfo:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/article15application/pdfhttp://hdl.handle.net/10362/145397engPURE: 47631474https://doi.org/10.3390/polym14204442info: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:RCAAP2024-03-11T05:25:45Zoai:run.unl.pt:10362/145397Portal AgregadorONGhttps://www.rcaap.pt/oai/openaireopendoar:71602024-03-20T03:52:03.596979Repositório 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 Films Based on Exopolysaccharides from Alteromonas Strains Isolated from French Polynesia Marine Environments |
| title |
Characterisation of Films Based on Exopolysaccharides from Alteromonas Strains Isolated from French Polynesia Marine Environments |
| spellingShingle |
Characterisation of Films Based on Exopolysaccharides from Alteromonas Strains Isolated from French Polynesia Marine Environments Concórdio-Reis, Patrícia Alteromonassp exopolysaccharide (EPS) films marine bacteria Chemistry(all) Polymers and Plastics SDG 14 - Life Below Water |
| title_short |
Characterisation of Films Based on Exopolysaccharides from Alteromonas Strains Isolated from French Polynesia Marine Environments |
| title_full |
Characterisation of Films Based on Exopolysaccharides from Alteromonas Strains Isolated from French Polynesia Marine Environments |
| title_fullStr |
Characterisation of Films Based on Exopolysaccharides from Alteromonas Strains Isolated from French Polynesia Marine Environments |
| title_full_unstemmed |
Characterisation of Films Based on Exopolysaccharides from Alteromonas Strains Isolated from French Polynesia Marine Environments |
| title_sort |
Characterisation of Films Based on Exopolysaccharides from Alteromonas Strains Isolated from French Polynesia Marine Environments |
| author |
Concórdio-Reis, Patrícia |
| author_facet |
Concórdio-Reis, Patrícia Pereira, João R. Alves, Vítor D. Nabais, Ana R. Neves, Luísa A. Marques, Ana C. Fortunato, Elvira Moppert, Xavier Guézennec, Jean Reis, Maria A. M. Freitas, Filomena |
| author_role |
author |
| author2 |
Pereira, João R. Alves, Vítor D. Nabais, Ana R. Neves, Luísa A. Marques, Ana C. Fortunato, Elvira Moppert, Xavier Guézennec, Jean Reis, Maria A. M. Freitas, Filomena |
| author2_role |
author author author author author author author author author author |
| dc.contributor.none.fl_str_mv |
UCIBIO - Applied Molecular Biosciences Unit DQ - Departamento de Química LAQV@REQUIMTE CENIMAT-i3N - Centro de Investigação de Materiais (Lab. Associado I3N) DCM - Departamento de Ciência dos Materiais RUN |
| dc.contributor.author.fl_str_mv |
Concórdio-Reis, Patrícia Pereira, João R. Alves, Vítor D. Nabais, Ana R. Neves, Luísa A. Marques, Ana C. Fortunato, Elvira Moppert, Xavier Guézennec, Jean Reis, Maria A. M. Freitas, Filomena |
| dc.subject.por.fl_str_mv |
Alteromonassp exopolysaccharide (EPS) films marine bacteria Chemistry(all) Polymers and Plastics SDG 14 - Life Below Water |
| topic |
Alteromonassp exopolysaccharide (EPS) films marine bacteria Chemistry(all) Polymers and Plastics SDG 14 - Life Below Water |
| description |
LA/P/0140/202019 UID/AGR/04129/2020 LA/P/0037/2020 |
| publishDate |
2022 |
| dc.date.none.fl_str_mv |
2022-11-10T22:13:25Z 2022-10 2022-10-01T00:00:00Z |
| 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/10362/145397 |
| url |
http://hdl.handle.net/10362/145397 |
| dc.language.iso.fl_str_mv |
eng |
| language |
eng |
| dc.relation.none.fl_str_mv |
PURE: 47631474 https://doi.org/10.3390/polym14204442 |
| dc.rights.driver.fl_str_mv |
info:eu-repo/semantics/openAccess |
| eu_rights_str_mv |
openAccess |
| dc.format.none.fl_str_mv |
15 application/pdf |
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reponame:Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) instname:Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informação instacron:RCAAP |
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Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informação |
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RCAAP |
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RCAAP |
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Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) |
| collection |
Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) |
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Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) - Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informação |
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1799138112426737664 |