Chitosan coated-phosphorylated starch films: Water interaction, transparency and antibacterial properties

Since there is a current need for developing biodegradable mulch films that keep the advantages of those manufactured with polyethylene but offering earlier biodegradation, new starch-based formulations were proposed and analyzed. In this work, starch was chemically modified by phosphorylation with...

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Detalles Bibliográficos
Autores: Merino, Danila, Mansilla, Andrea Yamila, Gutiérrez Carmona, Tomy José, Casalongue, Claudia, Alvarez, Vera Alejandra
Tipo de recurso: artículo
Estado:Versión publicada
Fecha de publicación:2018
País:Argentina
Institución:Consejo Nacional de Investigaciones Científicas y Técnicas
Repositorio:CONICET Digital (CONICET)
Idioma:inglés
OAI Identifier:oai:ri.conicet.gov.ar:11336/91012
Acceso en línea:http://hdl.handle.net/11336/91012
Access Level:acceso abierto
Palabra clave:Antibacterial
Corn starch
Hydrophilicity
Mulch film
Transparency
https://purl.org/becyt/ford/2.10
https://purl.org/becyt/ford/2
id AR_ffb5dccf80601c76cbc83eb65c5cc5bf
oai_identifier_str oai:ri.conicet.gov.ar:11336/91012
network_acronym_str AR
network_name_str Argentina
repository_id_str
dc.title.none.fl_str_mv Chitosan coated-phosphorylated starch films: Water interaction, transparency and antibacterial properties
title Chitosan coated-phosphorylated starch films: Water interaction, transparency and antibacterial properties
spellingShingle Chitosan coated-phosphorylated starch films: Water interaction, transparency and antibacterial properties
Merino, Danila
Antibacterial
Corn starch
Hydrophilicity
Mulch film
Transparency
https://purl.org/becyt/ford/2.10
https://purl.org/becyt/ford/2
title_short Chitosan coated-phosphorylated starch films: Water interaction, transparency and antibacterial properties
title_full Chitosan coated-phosphorylated starch films: Water interaction, transparency and antibacterial properties
title_fullStr Chitosan coated-phosphorylated starch films: Water interaction, transparency and antibacterial properties
title_full_unstemmed Chitosan coated-phosphorylated starch films: Water interaction, transparency and antibacterial properties
title_sort Chitosan coated-phosphorylated starch films: Water interaction, transparency and antibacterial properties
dc.creator.none.fl_str_mv Merino, Danila
Mansilla, Andrea Yamila
Gutiérrez Carmona, Tomy José
Casalongue, Claudia
Alvarez, Vera Alejandra
author Merino, Danila
author_facet Merino, Danila
Mansilla, Andrea Yamila
Gutiérrez Carmona, Tomy José
Casalongue, Claudia
Alvarez, Vera Alejandra
author_role author
author2 Mansilla, Andrea Yamila
Gutiérrez Carmona, Tomy José
Casalongue, Claudia
Alvarez, Vera Alejandra
author2_role author
author
author
author
dc.subject.none.fl_str_mv Antibacterial
Corn starch
Hydrophilicity
Mulch film
Transparency
https://purl.org/becyt/ford/2.10
https://purl.org/becyt/ford/2
topic Antibacterial
Corn starch
Hydrophilicity
Mulch film
Transparency
https://purl.org/becyt/ford/2.10
https://purl.org/becyt/ford/2
description Since there is a current need for developing biodegradable mulch films that keep the advantages of those manufactured with polyethylene but offering earlier biodegradation, new starch-based formulations were proposed and analyzed. In this work, starch was chemically modified by phosphorylation with sodium tripolyphosphate and resulting films were later coated with chitosan. Starch phosphorylation was performed by two different methodologies: chemical modification in aqueous suspension (AS) and reactive extrusion (REx). The content of phosphorus and the degree of substitution (DS) were determined and calculated, respectively, for the purpose of evaluating the efficiency of the phosphorylation reaction. This was used as a reference to analyze its incidence on the structure of the materials tested. Fourier Transform infrared spectroscopy (FTIR) and X ray diffraction (XRD) techniques were used to analyze chemical and structural modifications of the starch. Results show that higher DS was achieved by REx method and that was supported by the analysis of FTIR and XRD spectra. Films characterization indicates that phosphorylation by REx contributed to lower film moisture content and to increase opacity and antimicrobial activity. With regard chitosan (CS) coating, SEM micrographs indicate that it presented a porous structure that produces an increment in hydrophilicity, opacity and antimicrobial activity.
publishDate 2018
dc.date.none.fl_str_mv 2018-08-26
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/11336/91012
Merino, Danila; Mansilla, Andrea Yamila; Gutiérrez Carmona, Tomy José; Casalongue, Claudia; Alvarez, Vera Alejandra; Chitosan coated-phosphorylated starch films: Water interaction, transparency and antibacterial properties; Elsevier Science; Reactive & Functional Polymers; 131; 26-8-2018; 445-453
1381-5148
CONICET Digital
CONICET
url http://hdl.handle.net/11336/91012
identifier_str_mv Merino, Danila; Mansilla, Andrea Yamila; Gutiérrez Carmona, Tomy José; Casalongue, Claudia; Alvarez, Vera Alejandra; Chitosan coated-phosphorylated starch films: Water interaction, transparency and antibacterial properties; Elsevier Science; Reactive & Functional Polymers; 131; 26-8-2018; 445-453
1381-5148
CONICET Digital
CONICET
dc.language.none.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv info:eu-repo/semantics/altIdentifier/url/https://linkinghub.elsevier.com/retrieve/pii/S1381514818303286
info:eu-repo/semantics/altIdentifier/doi/10.1016/j.reactfunctpolym.2018.08.012
dc.rights.none.fl_str_mv info:eu-repo/semantics/openAccess
https://creativecommons.org/licenses/by-nc-sa/2.5/ar/
eu_rights_str_mv openAccess
rights_invalid_str_mv https://creativecommons.org/licenses/by-nc-sa/2.5/ar/
dc.format.none.fl_str_mv application/pdf
application/pdf
application/pdf
application/pdf
application/pdf
dc.publisher.none.fl_str_mv Elsevier Science
publisher.none.fl_str_mv Elsevier Science
dc.source.none.fl_str_mv reponame:CONICET Digital (CONICET)
instname:Consejo Nacional de Investigaciones Científicas y Técnicas
instname_str Consejo Nacional de Investigaciones Científicas y Técnicas
reponame_str CONICET Digital (CONICET)
collection CONICET Digital (CONICET)
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
_version_ 1799195160929632256
spelling Chitosan coated-phosphorylated starch films: Water interaction, transparency and antibacterial propertiesMerino, DanilaMansilla, Andrea YamilaGutiérrez Carmona, Tomy JoséCasalongue, ClaudiaAlvarez, Vera AlejandraAntibacterialCorn starchHydrophilicityMulch filmTransparencyhttps://purl.org/becyt/ford/2.10https://purl.org/becyt/ford/2Since there is a current need for developing biodegradable mulch films that keep the advantages of those manufactured with polyethylene but offering earlier biodegradation, new starch-based formulations were proposed and analyzed. In this work, starch was chemically modified by phosphorylation with sodium tripolyphosphate and resulting films were later coated with chitosan. Starch phosphorylation was performed by two different methodologies: chemical modification in aqueous suspension (AS) and reactive extrusion (REx). The content of phosphorus and the degree of substitution (DS) were determined and calculated, respectively, for the purpose of evaluating the efficiency of the phosphorylation reaction. This was used as a reference to analyze its incidence on the structure of the materials tested. Fourier Transform infrared spectroscopy (FTIR) and X ray diffraction (XRD) techniques were used to analyze chemical and structural modifications of the starch. Results show that higher DS was achieved by REx method and that was supported by the analysis of FTIR and XRD spectra. Films characterization indicates that phosphorylation by REx contributed to lower film moisture content and to increase opacity and antimicrobial activity. With regard chitosan (CS) coating, SEM micrographs indicate that it presented a porous structure that produces an increment in hydrophilicity, opacity and antimicrobial activity.Fil: Merino, Danila. 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: Mansilla, Andrea Yamila. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Mar del Plata. Instituto de Investigaciones Biológicas. Universidad Nacional de Mar del Plata. Facultad de Ciencias Exactas y Naturales. Instituto de Investigaciones Biológicas; ArgentinaFil: Gutiérrez Carmona, Tomy José. 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: Casalongue, Claudia. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Mar del Plata. Instituto de Investigaciones Biológicas. Universidad Nacional de Mar del Plata. Facultad de Ciencias Exactas y Naturales. Instituto de Investigaciones Biológicas; ArgentinaFil: Alvarez, Vera Alejandra. 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; ArgentinaElsevier Science2018-08-26info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionhttp://purl.org/coar/resource_type/c_6501info:ar-repo/semantics/articuloapplication/pdfapplication/pdfapplication/pdfapplication/pdfapplication/pdfhttp://hdl.handle.net/11336/91012Merino, Danila; Mansilla, Andrea Yamila; Gutiérrez Carmona, Tomy José; Casalongue, Claudia; Alvarez, Vera Alejandra; Chitosan coated-phosphorylated starch films: Water interaction, transparency and antibacterial properties; Elsevier Science; Reactive & Functional Polymers; 131; 26-8-2018; 445-4531381-5148CONICET DigitalCONICETenginfo:eu-repo/semantics/altIdentifier/url/https://linkinghub.elsevier.com/retrieve/pii/S1381514818303286info:eu-repo/semantics/altIdentifier/doi/10.1016/j.reactfunctpolym.2018.08.012info:eu-repo/semantics/openAccesshttps://creativecommons.org/licenses/by-nc-sa/2.5/ar/reponame:CONICET Digital (CONICET)instname:Consejo Nacional de Investigaciones Científicas y Técnicas2024-05-08T13:45:00Zoai:ri.conicet.gov.ar:11336/91012instacron: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:34982024-05-08 13:45:00.744CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicasfalse
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