2026-04-14T08:49:05Zhttps://recercat.cat/oai/request

oai:recercat.cat:10256/273122025-12-05T10:03:36Zcom_2072_452955com_2072_2054col_2072_453062

Antioxidant coatings with selenium nanoparticles, stabilized by chitosan and nanocellulose, for active paper packaging Sam, Samanta Aguado, Roberto J. Fiol Santaló, Núria Bastida, Gabriela A. Delgado Aguilar, Marc Tarrés Farrés, Joaquim Agustí Agencia Estatal de Investigación Envasos d'aliments Food containers Nanofibres Nanofibers Envasos d'aliments -- Aspectes ambientals Food containers -- Environmental aspects Embalatges -- Aspectes ambientals Packaging -- Environmental aspects Inclou una correcció de l'article publicat a "International Journal of Biological Macromolecules", 2025 agost, vol. 319, art. num.146244 This study develops active food packaging coatings using antioxidant selenium nanoparticles (Se NPs), synthesized via green chemical reduction with cationic cellulose nanofibers (CCNFs) and chitosan (CS) as stabilizers. Se NPs were incorporated into either TEMPO-oxidized or enzymatically hydrolyzed (EH) cellulose nanofibers (CNFs) using blending and in-situ synthesis methods. Se NP incorporated CNF suspensions were coated onto liners with one or two alginate layers, and the best formulation was identified based on CNF type and incorporation method. Antioxidant performance, assessed via DPPH assay, showed 98–99 % radical inhibition in coatings with 10 % Se NP-incorporated CNFs. Antimicrobial activity was less remarkable, but inhibitions of E. coli growth of up to ∼65 % were found for coated papers. Barrier properties were evaluated at different Se NP concentrations and alginate layer numbers. The highest kit value (12) was achieved with two layers of alginate and two layers of 10 % CS- or CCNF-stabilized Se NP-incorporated TEMPO CNFs (STC) via in-situ synthesis. Coated liners also reached air resistance values of ∼2000 Gurley seconds and water vapor transmission rates of ∼150–200 g/m2/day. FESEM imaging confirmed the synergistic effect of alginate and STC in reducing pore size, highlighting its potential for active food packaging This research was received from the Spanish Ministry of Science and Innovation, project NextPack (PID2021-124766OA-I00). Open Access funding provided thanks to the CRUE-CSIC agreement with Elsevier 9 2025-08 info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion peer-reviewed http://hdl.handle.net/10256/27312 eng info:eu-repo/semantics/altIdentifier/doi/10.1016/j.ijbiomac.2025.145721 info:eu-repo/semantics/altIdentifier/issn/0141-8130 info:eu-repo/semantics/altIdentifier/eissn/1879-0003 PID2021-124766OA-I00 info:eu-repo/grantAgreement/AEI/Plan Estatal de Investigación Científica y Técnica y de Innovación 2021-2023/PID2021-124766OA-I00/ES/MATERIALES ACTIVOS BASADOS EN CELULOSA PARA LA NUEVA GENERACION DE EMBALAJE SOSTENIBLE PARA ALIMENTOS/ Attribution 4.0 International http://creativecommons.org/licenses/by/4.0/ info:eu-repo/semantics/openAccess application/pdf Elsevier International Journal of Biological Macromolecules, 2025, vol. 319, núm. 4, p.145721 Articles publicats (D-EQATA)