Biopolymeric Films of Amphiphilic Derivatives of Chitosan: A Physicochemical Characterization and Antifungal Study

Detalhes bibliográficos
Autor(a) principal: Rodrigues Santos Alves, Anna Carolina [UNESP]
Data de Publicação: 2019
Outros Autores: Furuyama Lima, Aline Margarete [UNESP], Tiera, Marcio Jose [UNESP], Oliveira Tiera, Vera Aparecida de [UNESP]
Tipo de documento: Artigo
Idioma: eng
Título da fonte: Repositório Institucional da UNESP
Texto Completo: http://dx.doi.org/10.3390/ijms20174173
http://hdl.handle.net/11449/196189
Resumo: The chemical modification of chitosan has been an active subject of research in order to improve the physicochemical and antifungal properties of chitosan-based films. The aim of this study was to evaluate the physiochemical and antifungal properties of films prepared with chitosan and its derivatives containing diethylaminoethyl (DEAE) and dodecyl groups (Dod). Chitosans and selected derivatives were synthesized and characterized, and their films blended with glycerol and sorbitol (5%, 10%, and 20%). They were studied by means of the evaluation of their mechanical, thermal, barrier, and antifungal properties. The collected data showed that molecular weight (Mw), degree of acetylation, and grafting with DEAE and Dod groups greatly affected the mechanical, thickness, color, and barrier properties, all of which could be tailored by the plasticizer percentage. The antifungal study against Aspergillus flavus, Alternaria alternata, Alternaria solani, and Penicillium expansum showed that the films containing DEAE and Dod groups exhibited higher antifungal activity than the non-modified chitosans. The mechanical properties of highly soluble films were improved by the plasticizers at percentages of 5% and 10%, indicating these derivatives as potential candidates for the coating of seeds, nuts and fruits of various crops.
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spelling Biopolymeric Films of Amphiphilic Derivatives of Chitosan: A Physicochemical Characterization and Antifungal Studychitosanderivativesfilmsantifungal activitycoatingedible filmsThe chemical modification of chitosan has been an active subject of research in order to improve the physicochemical and antifungal properties of chitosan-based films. The aim of this study was to evaluate the physiochemical and antifungal properties of films prepared with chitosan and its derivatives containing diethylaminoethyl (DEAE) and dodecyl groups (Dod). Chitosans and selected derivatives were synthesized and characterized, and their films blended with glycerol and sorbitol (5%, 10%, and 20%). They were studied by means of the evaluation of their mechanical, thermal, barrier, and antifungal properties. The collected data showed that molecular weight (Mw), degree of acetylation, and grafting with DEAE and Dod groups greatly affected the mechanical, thickness, color, and barrier properties, all of which could be tailored by the plasticizer percentage. The antifungal study against Aspergillus flavus, Alternaria alternata, Alternaria solani, and Penicillium expansum showed that the films containing DEAE and Dod groups exhibited higher antifungal activity than the non-modified chitosans. The mechanical properties of highly soluble films were improved by the plasticizers at percentages of 5% and 10%, indicating these derivatives as potential candidates for the coating of seeds, nuts and fruits of various crops.Fundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP)Coordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES)Sao Paulo State Univ, Inst Biosci Humanities & Exact Sci, Dept Chem & Environm Sci, BR-15054000 Sao Jose do Rio Preto, SP, BrazilSao Paulo State Univ, Inst Biosci Humanities & Exact Sci, Dept Chem & Environm Sci, BR-15054000 Sao Jose do Rio Preto, SP, BrazilFAPESP: 2016/15736-0CAPES: PNPD 1267244MdpiUniversidade Estadual Paulista (Unesp)Rodrigues Santos Alves, Anna Carolina [UNESP]Furuyama Lima, Aline Margarete [UNESP]Tiera, Marcio Jose [UNESP]Oliveira Tiera, Vera Aparecida de [UNESP]2020-12-10T19:36:28Z2020-12-10T19:36:28Z2019-09-01info:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/article20http://dx.doi.org/10.3390/ijms20174173International Journal Of Molecular Sciences. Basel: Mdpi, v. 20, n. 17, 20 p., 2019.http://hdl.handle.net/11449/19618910.3390/ijms20174173WOS:000486888400105Web of Sciencereponame:Repositório Institucional da UNESPinstname:Universidade Estadual Paulista (UNESP)instacron:UNESPengInternational Journal Of Molecular Sciencesinfo:eu-repo/semantics/openAccess2021-10-23T04:53:22Zoai:repositorio.unesp.br:11449/196189Repositório InstitucionalPUBhttp://repositorio.unesp.br/oai/requestopendoar:29462024-08-05T18:29:23.989826Repositório Institucional da UNESP - Universidade Estadual Paulista (UNESP)false
dc.title.none.fl_str_mv Biopolymeric Films of Amphiphilic Derivatives of Chitosan: A Physicochemical Characterization and Antifungal Study
title Biopolymeric Films of Amphiphilic Derivatives of Chitosan: A Physicochemical Characterization and Antifungal Study
spellingShingle Biopolymeric Films of Amphiphilic Derivatives of Chitosan: A Physicochemical Characterization and Antifungal Study
Rodrigues Santos Alves, Anna Carolina [UNESP]
chitosan
derivatives
films
antifungal activity
coating
edible films
title_short Biopolymeric Films of Amphiphilic Derivatives of Chitosan: A Physicochemical Characterization and Antifungal Study
title_full Biopolymeric Films of Amphiphilic Derivatives of Chitosan: A Physicochemical Characterization and Antifungal Study
title_fullStr Biopolymeric Films of Amphiphilic Derivatives of Chitosan: A Physicochemical Characterization and Antifungal Study
title_full_unstemmed Biopolymeric Films of Amphiphilic Derivatives of Chitosan: A Physicochemical Characterization and Antifungal Study
title_sort Biopolymeric Films of Amphiphilic Derivatives of Chitosan: A Physicochemical Characterization and Antifungal Study
author Rodrigues Santos Alves, Anna Carolina [UNESP]
author_facet Rodrigues Santos Alves, Anna Carolina [UNESP]
Furuyama Lima, Aline Margarete [UNESP]
Tiera, Marcio Jose [UNESP]
Oliveira Tiera, Vera Aparecida de [UNESP]
author_role author
author2 Furuyama Lima, Aline Margarete [UNESP]
Tiera, Marcio Jose [UNESP]
Oliveira Tiera, Vera Aparecida de [UNESP]
author2_role author
author
author
dc.contributor.none.fl_str_mv Universidade Estadual Paulista (Unesp)
dc.contributor.author.fl_str_mv Rodrigues Santos Alves, Anna Carolina [UNESP]
Furuyama Lima, Aline Margarete [UNESP]
Tiera, Marcio Jose [UNESP]
Oliveira Tiera, Vera Aparecida de [UNESP]
dc.subject.por.fl_str_mv chitosan
derivatives
films
antifungal activity
coating
edible films
topic chitosan
derivatives
films
antifungal activity
coating
edible films
description The chemical modification of chitosan has been an active subject of research in order to improve the physicochemical and antifungal properties of chitosan-based films. The aim of this study was to evaluate the physiochemical and antifungal properties of films prepared with chitosan and its derivatives containing diethylaminoethyl (DEAE) and dodecyl groups (Dod). Chitosans and selected derivatives were synthesized and characterized, and their films blended with glycerol and sorbitol (5%, 10%, and 20%). They were studied by means of the evaluation of their mechanical, thermal, barrier, and antifungal properties. The collected data showed that molecular weight (Mw), degree of acetylation, and grafting with DEAE and Dod groups greatly affected the mechanical, thickness, color, and barrier properties, all of which could be tailored by the plasticizer percentage. The antifungal study against Aspergillus flavus, Alternaria alternata, Alternaria solani, and Penicillium expansum showed that the films containing DEAE and Dod groups exhibited higher antifungal activity than the non-modified chitosans. The mechanical properties of highly soluble films were improved by the plasticizers at percentages of 5% and 10%, indicating these derivatives as potential candidates for the coating of seeds, nuts and fruits of various crops.
publishDate 2019
dc.date.none.fl_str_mv 2019-09-01
2020-12-10T19:36:28Z
2020-12-10T19:36:28Z
dc.type.status.fl_str_mv info:eu-repo/semantics/publishedVersion
dc.type.driver.fl_str_mv info:eu-repo/semantics/article
format article
status_str publishedVersion
dc.identifier.uri.fl_str_mv http://dx.doi.org/10.3390/ijms20174173
International Journal Of Molecular Sciences. Basel: Mdpi, v. 20, n. 17, 20 p., 2019.
http://hdl.handle.net/11449/196189
10.3390/ijms20174173
WOS:000486888400105
url http://dx.doi.org/10.3390/ijms20174173
http://hdl.handle.net/11449/196189
identifier_str_mv International Journal Of Molecular Sciences. Basel: Mdpi, v. 20, n. 17, 20 p., 2019.
10.3390/ijms20174173
WOS:000486888400105
dc.language.iso.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv International Journal Of Molecular Sciences
dc.rights.driver.fl_str_mv info:eu-repo/semantics/openAccess
eu_rights_str_mv openAccess
dc.format.none.fl_str_mv 20
dc.publisher.none.fl_str_mv Mdpi
publisher.none.fl_str_mv Mdpi
dc.source.none.fl_str_mv Web of Science
reponame:Repositório Institucional da UNESP
instname:Universidade Estadual Paulista (UNESP)
instacron:UNESP
instname_str Universidade Estadual Paulista (UNESP)
instacron_str UNESP
institution UNESP
reponame_str Repositório Institucional da UNESP
collection Repositório Institucional da UNESP
repository.name.fl_str_mv Repositório Institucional da UNESP - Universidade Estadual Paulista (UNESP)
repository.mail.fl_str_mv
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