Active films based on thermoplastic corn starch and chitosan oligomer for food packaging applications

Autores
Castillo, Luciana A.; Farenzena, Sonia; Pintos, Esteban; Rodríguez, María Susana; Villar, Marcelo A.; García, María Alejandra; López, Olivia Valeria
Año de publicación
2017
Idioma
inglés
Tipo de recurso
artículo
Estado
versión publicada
Descripción
Antimicrobial biodegradable films based on thermoplastic corn starch (TPS) and chitosan oligomers (CO) were obtained in order to develop a package prototype for perishable food products. Active films were fabricated thermo-compressing a sandwiched structure constituted by a thin layer of an oligomers enriched solution between two TPS films, previously made by melt-mixing and hot-pressing. Regarding enriched solution, it was obtained by dissolving oligomers in diluted acetic acid. Final material was characterized, determining its physical and optical properties, as well as, studying its microstructure. By diffusion assays it was demonstrated the capability of CO to migrate from the active film towards the aqueous simulant media. Moreover, oligomers were able to diffuse from the matrix, regardless the aqueous medium acidity. Experimental data of diffusion assays were fitted using a mathematical model, estimating diffusion coefficients at three studied pH values (3, 5, and 7). Active film was used to obtain sachets to package perishable foods such as strawberries, ricotta, and flavored breads, which were stored for 7 days under controlled conditions. Antimicrobial capacity of active sachets was corroborated through molds and yeast counts in the stored food products. Additionally, it was demonstrated that CO incorporation to the packaging material resulted in a more efficient way to inhibit microbial development than the spraying technique.
Facultad de Ciencias Exactas
Centro de Investigación y Desarrollo en Criotecnología de Alimentos
Materia
Ciencias Exactas
Química
active biodegradable films
thermoplastic corn starch
chitosan oligomer
diffusion assays
antimicrobial capacity
Nivel de accesibilidad
acceso abierto
Condiciones de uso
http://creativecommons.org/licenses/by-nc-sa/4.0/
Repositorio
SEDICI (UNLP)
Institución
Universidad Nacional de La Plata
OAI Identificador
oai:sedici.unlp.edu.ar:10915/107500
Acceder
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network_name_str SEDICI (UNLP)
spelling Active films based on thermoplastic corn starch and chitosan oligomer for food packaging applicationsCastillo, Luciana A.Farenzena, SoniaPintos, EstebanRodríguez, María SusanaVillar, Marcelo A.García, María AlejandraLópez, Olivia ValeriaCiencias ExactasQuímicaactive biodegradable filmsthermoplastic corn starchchitosan oligomerdiffusion assaysantimicrobial capacityAntimicrobial biodegradable films based on thermoplastic corn starch (TPS) and chitosan oligomers (CO) were obtained in order to develop a package prototype for perishable food products. Active films were fabricated thermo-compressing a sandwiched structure constituted by a thin layer of an oligomers enriched solution between two TPS films, previously made by melt-mixing and hot-pressing. Regarding enriched solution, it was obtained by dissolving oligomers in diluted acetic acid. Final material was characterized, determining its physical and optical properties, as well as, studying its microstructure. By diffusion assays it was demonstrated the capability of CO to migrate from the active film towards the aqueous simulant media. Moreover, oligomers were able to diffuse from the matrix, regardless the aqueous medium acidity. Experimental data of diffusion assays were fitted using a mathematical model, estimating diffusion coefficients at three studied pH values (3, 5, and 7). Active film was used to obtain sachets to package perishable foods such as strawberries, ricotta, and flavored breads, which were stored for 7 days under controlled conditions. Antimicrobial capacity of active sachets was corroborated through molds and yeast counts in the stored food products. Additionally, it was demonstrated that CO incorporation to the packaging material resulted in a more efficient way to inhibit microbial development than the spraying technique.Facultad de Ciencias ExactasCentro de Investigación y Desarrollo en Criotecnología de Alimentos2017info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionArticulohttp://purl.org/coar/resource_type/c_6501info:ar-repo/semantics/articuloapplication/pdf128-136http://sedici.unlp.edu.ar/handle/10915/107500enginfo:eu-repo/semantics/altIdentifier/url/https://www.sciencedirect.com/science/article/abs/pii/S2214289417300662info:eu-repo/semantics/altIdentifier/issn/2214-2894info:eu-repo/semantics/altIdentifier/doi/10.1016/j.fpsl.2017.10.004info:eu-repo/semantics/openAccesshttp://creativecommons.org/licenses/by-nc-sa/4.0/Creative Commons Attribution-NonCommercial-ShareAlike 4.0 International (CC BY-NC-SA 4.0)reponame:SEDICI (UNLP)instname:Universidad Nacional de La Platainstacron:UNLP2025-10-22T17:04:57Zoai:sedici.unlp.edu.ar:10915/107500Institucionalhttp://sedici.unlp.edu.ar/Universidad públicaNo correspondehttp://sedici.unlp.edu.ar/oai/snrdalira@sedici.unlp.edu.arArgentinaNo correspondeNo correspondeNo correspondeopendoar:13292025-10-22 17:04:57.333SEDICI (UNLP) - Universidad Nacional de La Platafalse
dc.title.none.fl_str_mv Active films based on thermoplastic corn starch and chitosan oligomer for food packaging applications
title Active films based on thermoplastic corn starch and chitosan oligomer for food packaging applications
spellingShingle Active films based on thermoplastic corn starch and chitosan oligomer for food packaging applications
Castillo, Luciana A.
Ciencias Exactas
Química
active biodegradable films
thermoplastic corn starch
chitosan oligomer
diffusion assays
antimicrobial capacity
title_short Active films based on thermoplastic corn starch and chitosan oligomer for food packaging applications
title_full Active films based on thermoplastic corn starch and chitosan oligomer for food packaging applications
title_fullStr Active films based on thermoplastic corn starch and chitosan oligomer for food packaging applications
title_full_unstemmed Active films based on thermoplastic corn starch and chitosan oligomer for food packaging applications
title_sort Active films based on thermoplastic corn starch and chitosan oligomer for food packaging applications
dc.creator.none.fl_str_mv Castillo, Luciana A.
Farenzena, Sonia
Pintos, Esteban
Rodríguez, María Susana
Villar, Marcelo A.
García, María Alejandra
López, Olivia Valeria
author Castillo, Luciana A.
author_facet Castillo, Luciana A.
Farenzena, Sonia
Pintos, Esteban
Rodríguez, María Susana
Villar, Marcelo A.
García, María Alejandra
López, Olivia Valeria
author_role author
author2 Farenzena, Sonia
Pintos, Esteban
Rodríguez, María Susana
Villar, Marcelo A.
García, María Alejandra
López, Olivia Valeria
author2_role author
author
author
author
author
author
dc.subject.none.fl_str_mv Ciencias Exactas
Química
active biodegradable films
thermoplastic corn starch
chitosan oligomer
diffusion assays
antimicrobial capacity
topic Ciencias Exactas
Química
active biodegradable films
thermoplastic corn starch
chitosan oligomer
diffusion assays
antimicrobial capacity
dc.description.none.fl_txt_mv Antimicrobial biodegradable films based on thermoplastic corn starch (TPS) and chitosan oligomers (CO) were obtained in order to develop a package prototype for perishable food products. Active films were fabricated thermo-compressing a sandwiched structure constituted by a thin layer of an oligomers enriched solution between two TPS films, previously made by melt-mixing and hot-pressing. Regarding enriched solution, it was obtained by dissolving oligomers in diluted acetic acid. Final material was characterized, determining its physical and optical properties, as well as, studying its microstructure. By diffusion assays it was demonstrated the capability of CO to migrate from the active film towards the aqueous simulant media. Moreover, oligomers were able to diffuse from the matrix, regardless the aqueous medium acidity. Experimental data of diffusion assays were fitted using a mathematical model, estimating diffusion coefficients at three studied pH values (3, 5, and 7). Active film was used to obtain sachets to package perishable foods such as strawberries, ricotta, and flavored breads, which were stored for 7 days under controlled conditions. Antimicrobial capacity of active sachets was corroborated through molds and yeast counts in the stored food products. Additionally, it was demonstrated that CO incorporation to the packaging material resulted in a more efficient way to inhibit microbial development than the spraying technique.
Facultad de Ciencias Exactas
Centro de Investigación y Desarrollo en Criotecnología de Alimentos
description Antimicrobial biodegradable films based on thermoplastic corn starch (TPS) and chitosan oligomers (CO) were obtained in order to develop a package prototype for perishable food products. Active films were fabricated thermo-compressing a sandwiched structure constituted by a thin layer of an oligomers enriched solution between two TPS films, previously made by melt-mixing and hot-pressing. Regarding enriched solution, it was obtained by dissolving oligomers in diluted acetic acid. Final material was characterized, determining its physical and optical properties, as well as, studying its microstructure. By diffusion assays it was demonstrated the capability of CO to migrate from the active film towards the aqueous simulant media. Moreover, oligomers were able to diffuse from the matrix, regardless the aqueous medium acidity. Experimental data of diffusion assays were fitted using a mathematical model, estimating diffusion coefficients at three studied pH values (3, 5, and 7). Active film was used to obtain sachets to package perishable foods such as strawberries, ricotta, and flavored breads, which were stored for 7 days under controlled conditions. Antimicrobial capacity of active sachets was corroborated through molds and yeast counts in the stored food products. Additionally, it was demonstrated that CO incorporation to the packaging material resulted in a more efficient way to inhibit microbial development than the spraying technique.
publishDate 2017
dc.date.none.fl_str_mv 2017
dc.type.none.fl_str_mv info:eu-repo/semantics/article
info:eu-repo/semantics/publishedVersion
Articulo
http://purl.org/coar/resource_type/c_6501
info:ar-repo/semantics/articulo
format article
status_str publishedVersion
dc.identifier.none.fl_str_mv http://sedici.unlp.edu.ar/handle/10915/107500
url http://sedici.unlp.edu.ar/handle/10915/107500
dc.language.none.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv info:eu-repo/semantics/altIdentifier/url/https://www.sciencedirect.com/science/article/abs/pii/S2214289417300662
info:eu-repo/semantics/altIdentifier/issn/2214-2894
info:eu-repo/semantics/altIdentifier/doi/10.1016/j.fpsl.2017.10.004
dc.rights.none.fl_str_mv info:eu-repo/semantics/openAccess
http://creativecommons.org/licenses/by-nc-sa/4.0/
Creative Commons Attribution-NonCommercial-ShareAlike 4.0 International (CC BY-NC-SA 4.0)
eu_rights_str_mv openAccess
rights_invalid_str_mv http://creativecommons.org/licenses/by-nc-sa/4.0/
Creative Commons Attribution-NonCommercial-ShareAlike 4.0 International (CC BY-NC-SA 4.0)
dc.format.none.fl_str_mv application/pdf
128-136
dc.source.none.fl_str_mv reponame:SEDICI (UNLP)
instname:Universidad Nacional de La Plata
instacron:UNLP
reponame_str SEDICI (UNLP)
collection SEDICI (UNLP)
instname_str Universidad Nacional de La Plata
instacron_str UNLP
institution UNLP
repository.name.fl_str_mv SEDICI (UNLP) - Universidad Nacional de La Plata
repository.mail.fl_str_mv alira@sedici.unlp.edu.ar
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score 12.921322

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