Preparation and characterization of sodium caseinate films reinforced with cellulose derivatives

Autores
Pereda, Mariana; Amica, Guillermina; Ráczb, Ilona; Marcovich, Norma Esther
Año de publicación
2011
Idioma
inglés
Tipo de recurso
artículo
Estado
versión publicada
Descripción
Edible composite films, based on glycerol-plasticized sodium caseinate (SC) and either carboxymethyl cellulose (CMC) or cellulose acetate (CA) fibers, were respectively prepared by suspension casting. The effects of mixing SC with very low amounts (up to 3 wt%) of CMC or CA were systematically investigated through changes in morphology, surface hydrophilicity, moisture sorption, water vapor permeability, opacity, dynamic mechanical response and mechanical properties of the films. Incorporation of 3 wt% cellulose derivatives into the protein matrix led to slight but measurable decreases of equilibrium moisture contents, achieving reductions of 7.5 and 14.4% for CMC and CA reinforced films, respectively. Besides, the addition of CA contributed to the decrease of water vapor permeability, leading to a 38% falloff at 3 wt% filler. Contact angle measurements using a polar solvent ranged from 40° to 29–30° as filler concentration increased, indicating that reinforced films had higher superficial hydrophilicity than neat caseinate ones. Transparency decreased as filler concentration increased: the opacities of the most concentrated samples were 1.9 (CMC) and 2.3 times (CA) higher than that of the SC matrix. Moreover, tensile tests revealed that the addition of cellulose derivatives enhanced the tensile modulus (i.e. an 80% increase with 3 wt% CMC) and strength (i.e. a 70% increase with 3 wt% CA) although the elongation at break decreased. The differences found in the performance of both cellulose derivatives were explained in terms of water-solubility, hydrophobic character, rigidity of the fibers and quality of the filler dispersion in the protein matrix.
Fil: Pereda, Mariana. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Mar del Plata. Instituto de Investigaciones en Ciencia y Tecnología de Materiales. Universidad Nacional de Mar del Plata. Facultad de Ingeniería. Instituto de Investigaciones en Ciencia y Tecnología de Materiales; Argentina
Fil: Amica, Guillermina. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Mar del Plata. Instituto de Investigaciones en Ciencia y Tecnología de Materiales. Universidad Nacional de Mar del Plata. Facultad de Ingeniería. Instituto de Investigaciones en Ciencia y Tecnología de Materiales; Argentina
Fil: Ráczb, Ilona. Bay Zoltán Foundation for Applied Research; Hungría
Fil: Marcovich, Norma Esther. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Mar del Plata. Instituto de Investigaciones en Ciencia y Tecnología de Materiales. Universidad Nacional de Mar del Plata. Facultad de Ingeniería. Instituto de Investigaciones en Ciencia y Tecnología de Materiales; Argentina
Materia
Carboxymethyl Cellulose
Cellulose Acetate
Reinforced Protein Films
Sodium Caseinate
Nivel de accesibilidad
acceso abierto
Condiciones de uso
https://creativecommons.org/licenses/by-nc-nd/2.5/ar/
Repositorio
CONICET Digital (CONICET)
Institución
Consejo Nacional de Investigaciones Científicas y Técnicas
OAI Identificador
oai:ri.conicet.gov.ar:11336/78841
Acceder
id CONICETDig_36f82950367818fdf1223f5973cc8735
oai_identifier_str oai:ri.conicet.gov.ar:11336/78841
network_acronym_str CONICETDig
repository_id_str 3498
network_name_str CONICET Digital (CONICET)
spelling Preparation and characterization of sodium caseinate films reinforced with cellulose derivativesPereda, MarianaAmica, GuillerminaRáczb, IlonaMarcovich, Norma EstherCarboxymethyl CelluloseCellulose AcetateReinforced Protein FilmsSodium Caseinatehttps://purl.org/becyt/ford/2.5https://purl.org/becyt/ford/2https://purl.org/becyt/ford/1.4https://purl.org/becyt/ford/1Edible composite films, based on glycerol-plasticized sodium caseinate (SC) and either carboxymethyl cellulose (CMC) or cellulose acetate (CA) fibers, were respectively prepared by suspension casting. The effects of mixing SC with very low amounts (up to 3 wt%) of CMC or CA were systematically investigated through changes in morphology, surface hydrophilicity, moisture sorption, water vapor permeability, opacity, dynamic mechanical response and mechanical properties of the films. Incorporation of 3 wt% cellulose derivatives into the protein matrix led to slight but measurable decreases of equilibrium moisture contents, achieving reductions of 7.5 and 14.4% for CMC and CA reinforced films, respectively. Besides, the addition of CA contributed to the decrease of water vapor permeability, leading to a 38% falloff at 3 wt% filler. Contact angle measurements using a polar solvent ranged from 40° to 29–30° as filler concentration increased, indicating that reinforced films had higher superficial hydrophilicity than neat caseinate ones. Transparency decreased as filler concentration increased: the opacities of the most concentrated samples were 1.9 (CMC) and 2.3 times (CA) higher than that of the SC matrix. Moreover, tensile tests revealed that the addition of cellulose derivatives enhanced the tensile modulus (i.e. an 80% increase with 3 wt% CMC) and strength (i.e. a 70% increase with 3 wt% CA) although the elongation at break decreased. The differences found in the performance of both cellulose derivatives were explained in terms of water-solubility, hydrophobic character, rigidity of the fibers and quality of the filler dispersion in the protein matrix.Fil: Pereda, Mariana. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Mar del Plata. Instituto de Investigaciones en Ciencia y Tecnología de Materiales. Universidad Nacional de Mar del Plata. Facultad de Ingeniería. Instituto de Investigaciones en Ciencia y Tecnología de Materiales; ArgentinaFil: Amica, Guillermina. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Mar del Plata. Instituto de Investigaciones en Ciencia y Tecnología de Materiales. Universidad Nacional de Mar del Plata. Facultad de Ingeniería. Instituto de Investigaciones en Ciencia y Tecnología de Materiales; ArgentinaFil: Ráczb, Ilona. Bay Zoltán Foundation for Applied Research; HungríaFil: Marcovich, Norma Esther. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Mar del Plata. Instituto de Investigaciones en Ciencia y Tecnología de Materiales. Universidad Nacional de Mar del Plata. Facultad de Ingeniería. Instituto de Investigaciones en Ciencia y Tecnología de Materiales; ArgentinaElsevier2011-08info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionhttp://purl.org/coar/resource_type/c_6501info:ar-repo/semantics/articuloapplication/pdfapplication/pdfapplication/pdfapplication/pdfhttp://hdl.handle.net/11336/78841Pereda, Mariana; Amica, Guillermina; Ráczb, Ilona; Marcovich, Norma Esther; Preparation and characterization of sodium caseinate films reinforced with cellulose derivatives; Elsevier; Carbohydrate Polymers; 86; 2; 8-2011; 1014-10210144-8617CONICET DigitalCONICETenginfo:eu-repo/semantics/altIdentifier/doi/10.1016/j.carbpol.2011.05.063info:eu-repo/semantics/altIdentifier/url/https://www.sciencedirect.com/science/article/pii/S0144861711004437info:eu-repo/semantics/openAccesshttps://creativecommons.org/licenses/by-nc-nd/2.5/ar/reponame:CONICET Digital (CONICET)instname:Consejo Nacional de Investigaciones Científicas y Técnicas2025-09-03T09:47:53Zoai:ri.conicet.gov.ar:11336/78841instacron:CONICETInstitucionalhttp://ri.conicet.gov.ar/Organismo científico-tecnológicoNo correspondehttp://ri.conicet.gov.ar/oai/requestdasensio@conicet.gov.ar; lcarlino@conicet.gov.arArgentinaNo correspondeNo correspondeNo correspondeopendoar:34982025-09-03 09:47:54.259CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicasfalse
dc.title.none.fl_str_mv Preparation and characterization of sodium caseinate films reinforced with cellulose derivatives
title Preparation and characterization of sodium caseinate films reinforced with cellulose derivatives
spellingShingle Preparation and characterization of sodium caseinate films reinforced with cellulose derivatives
Pereda, Mariana
Carboxymethyl Cellulose
Cellulose Acetate
Reinforced Protein Films
Sodium Caseinate
title_short Preparation and characterization of sodium caseinate films reinforced with cellulose derivatives
title_full Preparation and characterization of sodium caseinate films reinforced with cellulose derivatives
title_fullStr Preparation and characterization of sodium caseinate films reinforced with cellulose derivatives
title_full_unstemmed Preparation and characterization of sodium caseinate films reinforced with cellulose derivatives
title_sort Preparation and characterization of sodium caseinate films reinforced with cellulose derivatives
dc.creator.none.fl_str_mv Pereda, Mariana
Amica, Guillermina
Ráczb, Ilona
Marcovich, Norma Esther
author Pereda, Mariana
author_facet Pereda, Mariana
Amica, Guillermina
Ráczb, Ilona
Marcovich, Norma Esther
author_role author
author2 Amica, Guillermina
Ráczb, Ilona
Marcovich, Norma Esther
author2_role author
author
author
dc.subject.none.fl_str_mv Carboxymethyl Cellulose
Cellulose Acetate
Reinforced Protein Films
Sodium Caseinate
topic Carboxymethyl Cellulose
Cellulose Acetate
Reinforced Protein Films
Sodium Caseinate
purl_subject.fl_str_mv https://purl.org/becyt/ford/2.5
https://purl.org/becyt/ford/2
https://purl.org/becyt/ford/1.4
https://purl.org/becyt/ford/1
dc.description.none.fl_txt_mv Edible composite films, based on glycerol-plasticized sodium caseinate (SC) and either carboxymethyl cellulose (CMC) or cellulose acetate (CA) fibers, were respectively prepared by suspension casting. The effects of mixing SC with very low amounts (up to 3 wt%) of CMC or CA were systematically investigated through changes in morphology, surface hydrophilicity, moisture sorption, water vapor permeability, opacity, dynamic mechanical response and mechanical properties of the films. Incorporation of 3 wt% cellulose derivatives into the protein matrix led to slight but measurable decreases of equilibrium moisture contents, achieving reductions of 7.5 and 14.4% for CMC and CA reinforced films, respectively. Besides, the addition of CA contributed to the decrease of water vapor permeability, leading to a 38% falloff at 3 wt% filler. Contact angle measurements using a polar solvent ranged from 40° to 29–30° as filler concentration increased, indicating that reinforced films had higher superficial hydrophilicity than neat caseinate ones. Transparency decreased as filler concentration increased: the opacities of the most concentrated samples were 1.9 (CMC) and 2.3 times (CA) higher than that of the SC matrix. Moreover, tensile tests revealed that the addition of cellulose derivatives enhanced the tensile modulus (i.e. an 80% increase with 3 wt% CMC) and strength (i.e. a 70% increase with 3 wt% CA) although the elongation at break decreased. The differences found in the performance of both cellulose derivatives were explained in terms of water-solubility, hydrophobic character, rigidity of the fibers and quality of the filler dispersion in the protein matrix.
Fil: Pereda, Mariana. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Mar del Plata. Instituto de Investigaciones en Ciencia y Tecnología de Materiales. Universidad Nacional de Mar del Plata. Facultad de Ingeniería. Instituto de Investigaciones en Ciencia y Tecnología de Materiales; Argentina
Fil: Amica, Guillermina. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Mar del Plata. Instituto de Investigaciones en Ciencia y Tecnología de Materiales. Universidad Nacional de Mar del Plata. Facultad de Ingeniería. Instituto de Investigaciones en Ciencia y Tecnología de Materiales; Argentina
Fil: Ráczb, Ilona. Bay Zoltán Foundation for Applied Research; Hungría
Fil: Marcovich, Norma Esther. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Mar del Plata. Instituto de Investigaciones en Ciencia y Tecnología de Materiales. Universidad Nacional de Mar del Plata. Facultad de Ingeniería. Instituto de Investigaciones en Ciencia y Tecnología de Materiales; Argentina
description Edible composite films, based on glycerol-plasticized sodium caseinate (SC) and either carboxymethyl cellulose (CMC) or cellulose acetate (CA) fibers, were respectively prepared by suspension casting. The effects of mixing SC with very low amounts (up to 3 wt%) of CMC or CA were systematically investigated through changes in morphology, surface hydrophilicity, moisture sorption, water vapor permeability, opacity, dynamic mechanical response and mechanical properties of the films. Incorporation of 3 wt% cellulose derivatives into the protein matrix led to slight but measurable decreases of equilibrium moisture contents, achieving reductions of 7.5 and 14.4% for CMC and CA reinforced films, respectively. Besides, the addition of CA contributed to the decrease of water vapor permeability, leading to a 38% falloff at 3 wt% filler. Contact angle measurements using a polar solvent ranged from 40° to 29–30° as filler concentration increased, indicating that reinforced films had higher superficial hydrophilicity than neat caseinate ones. Transparency decreased as filler concentration increased: the opacities of the most concentrated samples were 1.9 (CMC) and 2.3 times (CA) higher than that of the SC matrix. Moreover, tensile tests revealed that the addition of cellulose derivatives enhanced the tensile modulus (i.e. an 80% increase with 3 wt% CMC) and strength (i.e. a 70% increase with 3 wt% CA) although the elongation at break decreased. The differences found in the performance of both cellulose derivatives were explained in terms of water-solubility, hydrophobic character, rigidity of the fibers and quality of the filler dispersion in the protein matrix.
publishDate 2011
dc.date.none.fl_str_mv 2011-08
dc.type.none.fl_str_mv info:eu-repo/semantics/article
info:eu-repo/semantics/publishedVersion
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://hdl.handle.net/11336/78841
Pereda, Mariana; Amica, Guillermina; Ráczb, Ilona; Marcovich, Norma Esther; Preparation and characterization of sodium caseinate films reinforced with cellulose derivatives; Elsevier; Carbohydrate Polymers; 86; 2; 8-2011; 1014-1021
0144-8617
CONICET Digital
CONICET
url http://hdl.handle.net/11336/78841
identifier_str_mv Pereda, Mariana; Amica, Guillermina; Ráczb, Ilona; Marcovich, Norma Esther; Preparation and characterization of sodium caseinate films reinforced with cellulose derivatives; Elsevier; Carbohydrate Polymers; 86; 2; 8-2011; 1014-1021
0144-8617
CONICET Digital
CONICET
dc.language.none.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv info:eu-repo/semantics/altIdentifier/doi/10.1016/j.carbpol.2011.05.063
info:eu-repo/semantics/altIdentifier/url/https://www.sciencedirect.com/science/article/pii/S0144861711004437
dc.rights.none.fl_str_mv info:eu-repo/semantics/openAccess
https://creativecommons.org/licenses/by-nc-nd/2.5/ar/
eu_rights_str_mv openAccess
rights_invalid_str_mv https://creativecommons.org/licenses/by-nc-nd/2.5/ar/
dc.format.none.fl_str_mv application/pdf
application/pdf
application/pdf
application/pdf
dc.publisher.none.fl_str_mv Elsevier
publisher.none.fl_str_mv Elsevier
dc.source.none.fl_str_mv reponame:CONICET Digital (CONICET)
instname:Consejo Nacional de Investigaciones Científicas y Técnicas
reponame_str CONICET Digital (CONICET)
collection CONICET Digital (CONICET)
instname_str Consejo Nacional de Investigaciones Científicas y Técnicas
repository.name.fl_str_mv CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicas
repository.mail.fl_str_mv dasensio@conicet.gov.ar; lcarlino@conicet.gov.ar
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score 13.13397

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