Hydration and Water Vapor Transport in Films Based on Cassava Starch Reinforced with Topinambur Fiber (Helianthus tuberosus)

Autores
Sierra Montes, Luisa Fernanda; Lorenzo, María C.; García, Maria A.; Salvay, Andrés Gerardo; Ribba, Laura
Año de publicación
2025
Idioma
inglés
Tipo de recurso
artículo
Estado
versión publicada
Descripción
Biodegradable composites obtained by reinforcing thermoplastic starch (TPS) with lignocellulosic fibers show great potential, but their strong sensitivity to water still limits practical applications. Among possible reinforcements, Helianthus tuberosus (topinambur) represents an underutilized agricultural residue that has been scarcely explored in this context. In this work, we demonstrate for the first time that topinambur fiber can improve the water vapor barrier properties of cassava starch films, while also providing a detailed analysis of sorption isotherms and the humidity-dependent relationship between surface roughness and contact angle, aspects rarely addressed in previous studies. SEM revealed uniform fiber dispersion and integration. Water sorption kinetics showed that fiber addition reduces both hydration and sorption time constant, indicating lower water affinity and greater water mobility. Water sorption isotherms confirmed that fiber incorporation significantly alters overall hydration and water–matrix interactions, revealing reduced effective water solubility in films. Water vapor permeability also decreased with fiber addition, mainly due to decreased water solubility, rather than changes in water diffusivity. While fiber addition enhanced surface-water repellency across all humidity levels, roughness exhibited a humidity-dependent response FTIR analysis confirmed fiber–matrix compatibility and suggested new hydrogen bonding. Overall, these findings identify topinambur fiber as a novel reinforcement for designing biodegradable films with improved humidity resistance for agroecological applications.
Centro de Investigación y Desarrollo en Criotecnología de Alimentos
Materia
Química
biodegradable films
topinambur fiber
hydration
water vapor permeability
film surface properties
film morphology
Nivel de accesibilidad
acceso abierto
Condiciones de uso
http://creativecommons.org/licenses/by/4.0/
Repositorio
SEDICI (UNLP)
Institución
Universidad Nacional de La Plata
OAI Identificador
oai:sedici.unlp.edu.ar:10915/189181
Acceder
id SEDICI_f013850f61dcc1f0e7c8ce4768d90ca1
oai_identifier_str oai:sedici.unlp.edu.ar:10915/189181
network_acronym_str SEDICI
repository_id_str 1329
network_name_str SEDICI (UNLP)
spelling Hydration and Water Vapor Transport in Films Based on Cassava Starch Reinforced with Topinambur Fiber (Helianthus tuberosus)Sierra Montes, Luisa FernandaLorenzo, María C.García, Maria A.Salvay, Andrés GerardoRibba, LauraQuímicabiodegradable filmstopinambur fiberhydrationwater vapor permeabilityfilm surface propertiesfilm morphologyBiodegradable composites obtained by reinforcing thermoplastic starch (TPS) with lignocellulosic fibers show great potential, but their strong sensitivity to water still limits practical applications. Among possible reinforcements, Helianthus tuberosus (topinambur) represents an underutilized agricultural residue that has been scarcely explored in this context. In this work, we demonstrate for the first time that topinambur fiber can improve the water vapor barrier properties of cassava starch films, while also providing a detailed analysis of sorption isotherms and the humidity-dependent relationship between surface roughness and contact angle, aspects rarely addressed in previous studies. SEM revealed uniform fiber dispersion and integration. Water sorption kinetics showed that fiber addition reduces both hydration and sorption time constant, indicating lower water affinity and greater water mobility. Water sorption isotherms confirmed that fiber incorporation significantly alters overall hydration and water–matrix interactions, revealing reduced effective water solubility in films. Water vapor permeability also decreased with fiber addition, mainly due to decreased water solubility, rather than changes in water diffusivity. While fiber addition enhanced surface-water repellency across all humidity levels, roughness exhibited a humidity-dependent response FTIR analysis confirmed fiber–matrix compatibility and suggested new hydrogen bonding. Overall, these findings identify topinambur fiber as a novel reinforcement for designing biodegradable films with improved humidity resistance for agroecological applications.Centro de Investigación y Desarrollo en Criotecnología de Alimentos2025-10info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionArticulohttp://purl.org/coar/resource_type/c_6501info:ar-repo/semantics/articuloapplication/pdfhttp://sedici.unlp.edu.ar/handle/10915/189181enginfo:eu-repo/semantics/altIdentifier/issn/2079-6439info:eu-repo/semantics/altIdentifier/doi/10.3390/fib13100141info:eu-repo/semantics/openAccesshttp://creativecommons.org/licenses/by/4.0/Creative Commons Attribution 4.0 International (CC BY 4.0)reponame:SEDICI (UNLP)instname:Universidad Nacional de La Platainstacron:UNLP2025-12-23T11:54:13Zoai:sedici.unlp.edu.ar:10915/189181Institucionalhttp://sedici.unlp.edu.ar/Universidad públicaNo correspondehttp://sedici.unlp.edu.ar/oai/snrdalira@sedici.unlp.edu.arArgentinaNo correspondeNo correspondeNo correspondeopendoar:13292025-12-23 11:54:13.957SEDICI (UNLP) - Universidad Nacional de La Platafalse
dc.title.none.fl_str_mv Hydration and Water Vapor Transport in Films Based on Cassava Starch Reinforced with Topinambur Fiber (Helianthus tuberosus)
title Hydration and Water Vapor Transport in Films Based on Cassava Starch Reinforced with Topinambur Fiber (Helianthus tuberosus)
spellingShingle Hydration and Water Vapor Transport in Films Based on Cassava Starch Reinforced with Topinambur Fiber (Helianthus tuberosus)
Sierra Montes, Luisa Fernanda
Química
biodegradable films
topinambur fiber
hydration
water vapor permeability
film surface properties
film morphology
title_short Hydration and Water Vapor Transport in Films Based on Cassava Starch Reinforced with Topinambur Fiber (Helianthus tuberosus)
title_full Hydration and Water Vapor Transport in Films Based on Cassava Starch Reinforced with Topinambur Fiber (Helianthus tuberosus)
title_fullStr Hydration and Water Vapor Transport in Films Based on Cassava Starch Reinforced with Topinambur Fiber (Helianthus tuberosus)
title_full_unstemmed Hydration and Water Vapor Transport in Films Based on Cassava Starch Reinforced with Topinambur Fiber (Helianthus tuberosus)
title_sort Hydration and Water Vapor Transport in Films Based on Cassava Starch Reinforced with Topinambur Fiber (Helianthus tuberosus)
dc.creator.none.fl_str_mv Sierra Montes, Luisa Fernanda
Lorenzo, María C.
García, Maria A.
Salvay, Andrés Gerardo
Ribba, Laura
author Sierra Montes, Luisa Fernanda
author_facet Sierra Montes, Luisa Fernanda
Lorenzo, María C.
García, Maria A.
Salvay, Andrés Gerardo
Ribba, Laura
author_role author
author2 Lorenzo, María C.
García, Maria A.
Salvay, Andrés Gerardo
Ribba, Laura
author2_role author
author
author
author
dc.subject.none.fl_str_mv Química
biodegradable films
topinambur fiber
hydration
water vapor permeability
film surface properties
film morphology
topic Química
biodegradable films
topinambur fiber
hydration
water vapor permeability
film surface properties
film morphology
dc.description.none.fl_txt_mv Biodegradable composites obtained by reinforcing thermoplastic starch (TPS) with lignocellulosic fibers show great potential, but their strong sensitivity to water still limits practical applications. Among possible reinforcements, Helianthus tuberosus (topinambur) represents an underutilized agricultural residue that has been scarcely explored in this context. In this work, we demonstrate for the first time that topinambur fiber can improve the water vapor barrier properties of cassava starch films, while also providing a detailed analysis of sorption isotherms and the humidity-dependent relationship between surface roughness and contact angle, aspects rarely addressed in previous studies. SEM revealed uniform fiber dispersion and integration. Water sorption kinetics showed that fiber addition reduces both hydration and sorption time constant, indicating lower water affinity and greater water mobility. Water sorption isotherms confirmed that fiber incorporation significantly alters overall hydration and water–matrix interactions, revealing reduced effective water solubility in films. Water vapor permeability also decreased with fiber addition, mainly due to decreased water solubility, rather than changes in water diffusivity. While fiber addition enhanced surface-water repellency across all humidity levels, roughness exhibited a humidity-dependent response FTIR analysis confirmed fiber–matrix compatibility and suggested new hydrogen bonding. Overall, these findings identify topinambur fiber as a novel reinforcement for designing biodegradable films with improved humidity resistance for agroecological applications.
Centro de Investigación y Desarrollo en Criotecnología de Alimentos
description Biodegradable composites obtained by reinforcing thermoplastic starch (TPS) with lignocellulosic fibers show great potential, but their strong sensitivity to water still limits practical applications. Among possible reinforcements, Helianthus tuberosus (topinambur) represents an underutilized agricultural residue that has been scarcely explored in this context. In this work, we demonstrate for the first time that topinambur fiber can improve the water vapor barrier properties of cassava starch films, while also providing a detailed analysis of sorption isotherms and the humidity-dependent relationship between surface roughness and contact angle, aspects rarely addressed in previous studies. SEM revealed uniform fiber dispersion and integration. Water sorption kinetics showed that fiber addition reduces both hydration and sorption time constant, indicating lower water affinity and greater water mobility. Water sorption isotherms confirmed that fiber incorporation significantly alters overall hydration and water–matrix interactions, revealing reduced effective water solubility in films. Water vapor permeability also decreased with fiber addition, mainly due to decreased water solubility, rather than changes in water diffusivity. While fiber addition enhanced surface-water repellency across all humidity levels, roughness exhibited a humidity-dependent response FTIR analysis confirmed fiber–matrix compatibility and suggested new hydrogen bonding. Overall, these findings identify topinambur fiber as a novel reinforcement for designing biodegradable films with improved humidity resistance for agroecological applications.
publishDate 2025
dc.date.none.fl_str_mv 2025-10
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/10915/189181
url http://sedici.unlp.edu.ar/handle/10915/189181
dc.language.none.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv info:eu-repo/semantics/altIdentifier/issn/2079-6439
info:eu-repo/semantics/altIdentifier/doi/10.3390/fib13100141
dc.rights.none.fl_str_mv info:eu-repo/semantics/openAccess
http://creativecommons.org/licenses/by/4.0/
Creative Commons Attribution 4.0 International (CC BY 4.0)
eu_rights_str_mv openAccess
rights_invalid_str_mv http://creativecommons.org/licenses/by/4.0/
Creative Commons Attribution 4.0 International (CC BY 4.0)
dc.format.none.fl_str_mv application/pdf
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
_version_ 1852334853707530240
score 12.952241

Publicaciones similares