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Upcycling post-consumer household textiles into a biodegradable thermoplastic

2026-09Artigo científico Acesso aberto
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datacite.subject.fosEngenharia e Tecnologia::Engenharia Química
datacite.subject.fosEngenharia e Tecnologia::Engenharia dos Materiais
datacite.subject.fosEngenharia e Tecnologia::Outras Engenharias e Tecnologias
datacite.subject.sdg11:Cidades e Comunidades Sustentáveis
datacite.subject.sdg12:Produção e Consumo Sustentáveis
datacite.subject.sdg13:Ação Climática
dc.contributor.authorRodrigues, Thomas
dc.contributor.authorMatias, João
dc.contributor.authorMoura, Patrícia
dc.contributor.authorAbreu, Mariana
dc.contributor.authorGírio, Francisco
dc.contributor.authorBraga, Adelaide
dc.contributor.authorDias, J. C.
dc.contributor.authorRovisco, Ana
dc.contributor.authorFortunato, Elvira
dc.contributor.authorTorres, Cristiana A. V.
dc.contributor.authorReis, Maria A.
dc.contributor.authorMarques, Susana
dc.contributor.authorFreitas, Filomena
dc.contributor.authorSilva, Carla J.
dc.date.accessioned2026-09-30T10:13:28Z
dc.date.available2026-09-30T10:13:28Z
dc.date.issued2026-09
dc.description.abstractABSTRACT: This study demonstrates the biological valorization of post-consumer cotton-based towels, a significant household textile waste stream, into poly(3-hydroxybutyrate) P(3HB), a biodegradable and biocompatible thermoplastic. The textile waste was mechanically defibrillated, and pre-treated by freezing in NaOH/urea, rendering the cellulose fibers more accessible to saccharification, which was achieved by hydrolysis with Cellic (R) CTec3 cellulase. The resulting hydrolysate, with a glucose concentration of 102.3 g/L, was used to supply glucose as the carbon source for the batch bioreactor cultivation of the bacterium Burkholderia thailandensis E264. With an initial glucose concentration of 40 g/L, a maximum P(3HB) production of 9.17 +/- 1.01 g/L was observed after 53 h of cultivation, corresponding to an overall volumetric productivity of 0.165 g/(L h) and a product yield of 0.218 g/g. The P(3HB) exhibited an average molecular weight of 497 kDa and a polydispersity index of 2.6, with melting and thermal degradation temperatures of 170 and 291 degrees C, respectively, crystallinity index of 78.8%. Importantly, its tensile properties (Young's Modulus of 563 +/- 62 MPa and tensile strength of 27 +/- 2 MPa) were comparable to P(3HB) produced by other bacteria, including commercial products. The findings of this study demonstrate the feasibility of upcycling cotton-based household waste into a value-added sustainable and biodegradable material with properties matching those of commercial thermoplastics.eng
dc.identifier.citationRodrigues, T., Matias, J., Moura, P., Abreu, M., Gírio, F., Braga, A., Dias, J., Rovisco, A., Fortunato, E., Torres, C., Reis, M., Marques, S., Freitas, F., & Silva, C. (2026). Upcycling post-consumer household textiles into a biodegradable thermoplastic. In: Sustainable Materials and Technologies, 2026, vol. 50, article e02262. https://doi.org/10.1016/j.susmat.2026.e02262
dc.identifier.doi10.1016/j.susmat.2026.e02262
dc.identifier.urihttp://hdl.handle.net/10400.9/6490
dc.language.isoeng
dc.peerreviewedyes
dc.publisherElsevier
dc.relationApplied Molecular Biosciences Unit
dc.relationInstitute for Health and Bioeconomy
dc.relationInstitute of Nanostructures, Nanomodelling and Nanofabrication
dc.relationNew materials approaches for concentrating solar power (CSP): Molten salts and Corrosion Protection.
dc.relationDevelopment of PHA-based biocomposites with Bacterial Cellulose and CGC for textile and active packaging applications.
dc.relationBiomass and Bioenergy Research Infrastructure
dc.relation.hasversionhttps://www.sciencedirect.com/science/article/pii/S2214993726004136?pes=vor&utm_source=clarivate&getft_integrator=clarivate
dc.rights.urihttp://creativecommons.org/licenses/by/4.0/
dc.subjectPolyhydroxyalkanoates
dc.subjectThermoplastic
dc.subjectCotton textile waste
dc.subjectEnzymatic hydrolysis
dc.subjectWaste valorization
dc.titleUpcycling post-consumer household textiles into a biodegradable thermoplasticeng
dc.typejournal article
dspace.entity.typePublication
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oaire.awardTitleApplied Molecular Biosciences Unit
oaire.awardTitleInstitute for Health and Bioeconomy
oaire.awardTitleInstitute of Nanostructures, Nanomodelling and Nanofabrication
oaire.awardTitleNew materials approaches for concentrating solar power (CSP): Molten salts and Corrosion Protection.
oaire.awardTitleDevelopment of PHA-based biocomposites with Bacterial Cellulose and CGC for textile and active packaging applications.
oaire.awardTitleBiomass and Bioenergy Research Infrastructure
oaire.awardURIinfo:eu-repo/grantAgreement/FCT/6817 - DCRRNI ID/UIDP%2F04378%2F2020/PT
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oaire.citation.titleSustainable Materials and Technologies
oaire.citation.volume50
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