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dc.contributor.authorCabañas Romero, L. Verónica
dc.contributor.authorValls Vidal, Cristina
dc.contributor.authorValenzuela, Susana V.
dc.contributor.authorRoncero Vivero, María Blanca
dc.contributor.authorJavier Pastor, F.I.
dc.contributor.authorDiaz Lucea, M. Pilar
dc.contributor.authorMartínez Martínez, Josefina
dc.contributor.otherUniversitat Politècnica de Catalunya. Departament d’Enginyeria Gràfica i de Disseny
dc.date.accessioned2020-07-14T10:17:24Z
dc.date.available2021-03-12T01:28:40Z
dc.date.issued2020-03-12
dc.identifier.citationCabañas, L. [et al.]. Bacterial cellulose-chitosan paper with antimicrobial and antioxidant activities. "Biomacromolecules", 12 Març 2020, vol. 21, núm. 4, p. 1568-1577.
dc.identifier.issn1525-7797
dc.identifier.urihttp://hdl.handle.net/2117/192930
dc.description.abstractThe production of paper-based bacterial cellulose-chitosan (BC-Ch) nanocomposites was accomplished following two different approaches. In the first, BC paper sheets were produced and then immersed in an aqueous solution of chitosan(BC-ChI); in the second, BC pulp was impregnated with chitosan prior to the production of paper sheets (BC-ChM). BC-Ch nanocomposites were investigated in terms of physical characteristics, antimicrobial and antioxidant properties, and the ability to inhibit the formation of biofilms on their surface. The two types of BC-Ch nanocomposites maintained the hydrophobic character, the air barrier properties, and the high crystallinity of the BC paper. However, BC-ChI showed a surface with a denser fiber network and with smaller pores than those of BC-ChM. Only 5% of the chitosan leached from the BC-Ch nanocomposites after 96 h of incubation in an aqueous medium, indicating that it was well retained by the BC paper matrix. BC-Ch nanocomposites displayed antimicrobial activity, inhibiting growth of and having a killing effect against bacteria Staphylococcus aureus and Pseudomonas aeruginosa and yeast Candida albicans. Moreover, BC-Ch papers showed activity against the formation of a biofilm on their surface.The incorporation of chitosan increased the antioxidant activity of the BC paper. Paper-based BC-Ch nanocomposites combined the physical properties of BC paper and the antimicrobial, antibiofilm, and antioxidant activities of chitosan
dc.format.extent10 p.
dc.language.isoeng
dc.subjectÀrees temàtiques de la UPC::Enginyeria paperera::Primeres matèries papereres
dc.subject.lcshChitosan
dc.subject.lcshPapermaking
dc.subject.lcshPulping
dc.subject.lcshNanocomposites (Materials)
dc.subject.lcshWood-pulp
dc.titleBacterial cellulose-chitosan paper with antimicrobial and antioxidant activities
dc.typeArticle
dc.subject.lemacPaper -- Fabricació
dc.subject.lemacPasta de paper
dc.subject.lemacPasta de paper -- Fabricació
dc.subject.lemacNanocompòsits (Materials)
dc.subject.lemacQuitosan
dc.contributor.groupUniversitat Politècnica de Catalunya. CELBIOTECH - Grup de Recerca: Enginyeria Paperera
dc.identifier.doi10.1021/acs.biomac.0c00127
dc.relation.publisherversionhttps://pubs.acs.org/doi/10.1021/acs.biomac.0c00127
dc.rights.accessOpen Access
local.identifier.drac28852883
dc.description.versionPostprint (author's final draft)
local.citation.authorCabañas, L.; Valls, C.; Valenzuela, S.V.; Roncero, M.B.; Javier, F.; Diaz Lucea, M. Pilar; Martínez Martínez, Josefina
local.citation.publicationNameBiomacromolecules
local.citation.volume21
local.citation.number4
local.citation.startingPage1568
local.citation.endingPage1577


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