Functionalizing Calendered PLA/PBAT Films with Natural Food Additives

Herein, biodegradable and functional films based on PLA/PBAT (Ecovio<sup>®</sup>) blends were prepared by calandering processing that allows high-quality films and proper blend mixing. To provide functional properties such as antioxidant and antimicrobial activity, food additives were in...

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Autores: Mena-Prado, Ignacio, Fernández-García, Marta, Blázquez-Blázquez, Enrique, Limbo, Sara, Rollini, Manuela, Martins, Daniele Maria, Fernández-Blázquez, Juan P., Campo, Ángel Adolfo del, Muñoz-Bonilla, Alexandra
Formato: artículo
Estado:Versión publicada
Fecha de publicación:2026
País:España
Recursos:Consejo Superior de Investigaciones Científicas (CSIC)
Repositorio:DIGITAL.CSIC. Repositorio Institucional del CSIC
OAI Identifier:oai:dnet:digitalcsic_::b4ac629d08a2a4599f6f939e604cab5a
Acesso em linha:http://hdl.handle.net/10261/430098
https://api.elsevier.com/content/abstract/scopus_id/105036432347
Access Level:acceso abierto
Palavra-chave:Antimicrobial
Antioxidant
Biodegradable
Bioplasticizers
Functional films
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spelling Functionalizing Calendered PLA/PBAT Films with Natural Food AdditivesMena-Prado, IgnacioFernández-García, MartaBlázquez-Blázquez, EnriqueLimbo, SaraRollini, ManuelaMartins, Daniele MariaFernández-Blázquez, Juan P.Campo, Ángel Adolfo delMuñoz-Bonilla, AlexandraAntimicrobialAntioxidantBiodegradableBioplasticizersFunctional filmsHerein, biodegradable and functional films based on PLA/PBAT (Ecovio<sup>®</sup>) blends were prepared by calandering processing that allows high-quality films and proper blend mixing. To provide functional properties such as antioxidant and antimicrobial activity, food additives were incorporated including sodium stearoyl lactylate (designated as E481) at 5 wt% and bioplasticizers derived from vegetable oils, namely CITREM (E472C) and ACETEM (E472A) at 10 wt%. Chitin nanocrystals were also added to enhance barrier and mechanical properties. The films of around 200 μm thick were produced resulting in uniform and high-quality materials. Scanning electron microscopy and confocal Raman microscopy demonstrated good mixing of PLA and PBAT biopolymers, as well as a homogeneous dispersion of the additives. This effective blending provides excellent mechanical performance, particularly elongation at break, with values approaching 500% for most of the prepared films. The additives had minimal effect on the crystallinity, thermal and barrier properties while imparting antioxidant and antimicrobial properties with negligible migration into food simulant media, bellow 0.08 mg/Kg in all the cases. Citroglycerides, mono-and diglycerides of fatty acids and sodium stearoyl lactylate provides Trolox equivalent antioxidant capacity (TEAC) values between 14 and 18 µmol Trolox/g, and were effective against Gram-positive Staphylococcus aureus and Listeria innocua achieving complete bacterial inhibition at the contact tested concentration (ΔLog CFU/mL: 4.54 and 3.71, respectively). Finally, the disintegration of the films under industrial composting condition was demonstrated; this issue is essential to evaluate the environmental impact of the packaging at the end of its life cycle.This work was funded by the EU H2020 Project, “Characterisation and Harmonisation for Industrial Standardisation of Advanced Materials” (CHARISMA), under Grant Agreement no. 952921 and by the Ministerio de Ciencia, Innovación y Universidades (PID2022-13651OB-100), the Agencia Estatal de Investigación (AEI, Spain) and Fondo Europeo de Desarrollo Regional (FEDER, EU).Peer reviewedSpringer NatureEuropean CommissionMinisterio de Ciencia, Innovación y Universidades (España)Fernández-García, Marta [0000-0003-2061-0351]Blázquez-Blázquez, Enrique [0000-0003-2061-0351]Campo, Ángel Adolfo del [0000-0002-9221-0587]Muñoz-Bonilla, Alexandra [0000-0003-0210-1246]Consejo Superior de Investigaciones Científicas [https://ror.org/02gfc7t72]202620262026info:eu-repo/semantics/articlehttp://purl.org/coar/resource_type/c_6501Publisher's versioninfo:eu-repo/semantics/publishedVersionhttp://hdl.handle.net/10261/430098https://api.elsevier.com/content/abstract/scopus_id/105036432347reponame:DIGITAL.CSIC. Repositorio Institucional del CSICinstname:Consejo Superior de Investigaciones Científicas (CSIC)Inglés#PLACEHOLDER_PARENT_METADATA_VALUE#info:eu-repo/grantAgreement/AEI/Plan Estatal de Investigación Científica y Técnica y de Innovación 2021-2023/PID2022-136516OB-I00Síinfo:eu-repo/semantics/openAccessoai:dnet:digitalcsic_::b4ac629d08a2a4599f6f939e604cab5a2026-05-22T06:33:51Z
dc.title.none.fl_str_mv Functionalizing Calendered PLA/PBAT Films with Natural Food Additives
title Functionalizing Calendered PLA/PBAT Films with Natural Food Additives
spellingShingle Functionalizing Calendered PLA/PBAT Films with Natural Food Additives
Mena-Prado, Ignacio
Antimicrobial
Antioxidant
Biodegradable
Bioplasticizers
Functional films
title_short Functionalizing Calendered PLA/PBAT Films with Natural Food Additives
title_full Functionalizing Calendered PLA/PBAT Films with Natural Food Additives
title_fullStr Functionalizing Calendered PLA/PBAT Films with Natural Food Additives
title_full_unstemmed Functionalizing Calendered PLA/PBAT Films with Natural Food Additives
title_sort Functionalizing Calendered PLA/PBAT Films with Natural Food Additives
dc.creator.none.fl_str_mv Mena-Prado, Ignacio
Fernández-García, Marta
Blázquez-Blázquez, Enrique
Limbo, Sara
Rollini, Manuela
Martins, Daniele Maria
Fernández-Blázquez, Juan P.
Campo, Ángel Adolfo del
Muñoz-Bonilla, Alexandra
author Mena-Prado, Ignacio
author_facet Mena-Prado, Ignacio
Fernández-García, Marta
Blázquez-Blázquez, Enrique
Limbo, Sara
Rollini, Manuela
Martins, Daniele Maria
Fernández-Blázquez, Juan P.
Campo, Ángel Adolfo del
Muñoz-Bonilla, Alexandra
author_role author
author2 Fernández-García, Marta
Blázquez-Blázquez, Enrique
Limbo, Sara
Rollini, Manuela
Martins, Daniele Maria
Fernández-Blázquez, Juan P.
Campo, Ángel Adolfo del
Muñoz-Bonilla, Alexandra
author2_role author
author
author
author
author
author
author
author
dc.contributor.none.fl_str_mv European Commission
Ministerio de Ciencia, Innovación y Universidades (España)
Fernández-García, Marta [0000-0003-2061-0351]
Blázquez-Blázquez, Enrique [0000-0003-2061-0351]
Campo, Ángel Adolfo del [0000-0002-9221-0587]
Muñoz-Bonilla, Alexandra [0000-0003-0210-1246]
Consejo Superior de Investigaciones Científicas [https://ror.org/02gfc7t72]
dc.subject.none.fl_str_mv Antimicrobial
Antioxidant
Biodegradable
Bioplasticizers
Functional films
topic Antimicrobial
Antioxidant
Biodegradable
Bioplasticizers
Functional films
description Herein, biodegradable and functional films based on PLA/PBAT (Ecovio<sup>®</sup>) blends were prepared by calandering processing that allows high-quality films and proper blend mixing. To provide functional properties such as antioxidant and antimicrobial activity, food additives were incorporated including sodium stearoyl lactylate (designated as E481) at 5 wt% and bioplasticizers derived from vegetable oils, namely CITREM (E472C) and ACETEM (E472A) at 10 wt%. Chitin nanocrystals were also added to enhance barrier and mechanical properties. The films of around 200 μm thick were produced resulting in uniform and high-quality materials. Scanning electron microscopy and confocal Raman microscopy demonstrated good mixing of PLA and PBAT biopolymers, as well as a homogeneous dispersion of the additives. This effective blending provides excellent mechanical performance, particularly elongation at break, with values approaching 500% for most of the prepared films. The additives had minimal effect on the crystallinity, thermal and barrier properties while imparting antioxidant and antimicrobial properties with negligible migration into food simulant media, bellow 0.08 mg/Kg in all the cases. Citroglycerides, mono-and diglycerides of fatty acids and sodium stearoyl lactylate provides Trolox equivalent antioxidant capacity (TEAC) values between 14 and 18 µmol Trolox/g, and were effective against Gram-positive Staphylococcus aureus and Listeria innocua achieving complete bacterial inhibition at the contact tested concentration (ΔLog CFU/mL: 4.54 and 3.71, respectively). Finally, the disintegration of the films under industrial composting condition was demonstrated; this issue is essential to evaluate the environmental impact of the packaging at the end of its life cycle.
publishDate 2026
dc.date.none.fl_str_mv 2026
2026
2026
dc.type.none.fl_str_mv info:eu-repo/semantics/article
http://purl.org/coar/resource_type/c_6501
Publisher's version
info:eu-repo/semantics/publishedVersion
format article
status_str publishedVersion
dc.identifier.none.fl_str_mv http://hdl.handle.net/10261/430098
https://api.elsevier.com/content/abstract/scopus_id/105036432347
url http://hdl.handle.net/10261/430098
https://api.elsevier.com/content/abstract/scopus_id/105036432347
dc.language.none.fl_str_mv Inglés
language_invalid_str_mv Inglés
dc.relation.none.fl_str_mv #PLACEHOLDER_PARENT_METADATA_VALUE#
info:eu-repo/grantAgreement/AEI/Plan Estatal de Investigación Científica y Técnica y de Innovación 2021-2023/PID2022-136516OB-I00
Sí
dc.rights.none.fl_str_mv info:eu-repo/semantics/openAccess
eu_rights_str_mv openAccess
dc.publisher.none.fl_str_mv Springer Nature
publisher.none.fl_str_mv Springer Nature
dc.source.none.fl_str_mv reponame:DIGITAL.CSIC. Repositorio Institucional del CSIC
instname:Consejo Superior de Investigaciones Científicas (CSIC)
instname_str Consejo Superior de Investigaciones Científicas (CSIC)
reponame_str DIGITAL.CSIC. Repositorio Institucional del CSIC
collection DIGITAL.CSIC. Repositorio Institucional del CSIC
repository.name.fl_str_mv
repository.mail.fl_str_mv
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