Biopolymeric Films of Amphiphilic Derivatives of Chitosan: A Physicochemical Characterization and Antifungal Study
Autor(a) principal: | |
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Data de Publicação: | 2019 |
Outros Autores: | , , |
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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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 |
|
_version_ |
1808128938221764608 |