Effect of moderate electric fields in the properties of starch and chitosan films reinforced with microcrystalline cellulose
Autor(a) principal: | |
---|---|
Data de Publicação: | 2017 |
Outros Autores: | , , , , , , |
Tipo de documento: | Artigo |
Idioma: | eng |
Título da fonte: | Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) |
Texto Completo: | http://hdl.handle.net/1822/46334 |
Resumo: | Microcrystalline cellulose (MCC) can provide improved properties when the aim is the development of biodegradable packaging materials. In this work the physicochemical properties of polysaccharide-based films (chitosan and starch) with the incorporation of MCC and the application of moderate electric field (MEF) and ultrasonic bath (UB) as treatments, were evaluated. For each treatment, the thickness, moisture content, solubility, water vapor permeability, contact angle, mechanical properties, along with its color and opacity were determined. The surface morphologies of the films were assessed by scanning electron microscopy (SEM). X-ray diffraction (XRD), Fourier-transform infrared (FTIR) spectroscopy and thermogravimetric analysis (TGA) were also performed. It was observed that the addition of different concentrations of MCC as well as the application of MEF are responsible for changes in the properties of the films, being this effect dependent on the polysaccharide used. Chitosan-based films were slightly yellow, transparent and presented a more homogeneous structure. The use of MEF was efficient in decreasing the permeability to water vapor in chitosan based films without MCC, as well as in production of films with a more hydrophobic surface. The addition of MCC promoted more opaque, rigid, less flexible and less hydrophobic films. Starch-based films were whitish, with a more heterogeneous structure and the application of MEF generated more hydrophilic films with lower tensile strength and Youngs modulus. The films with MCC were more opaque, less flexible and less hydrophilic than the films without MCC. The composites presented good thermal properties, which increases their applicability as packaging materials. Therefore, the incorporation of MCC into polysaccharide-based films as well as the application of MEF can be an approach to change the properties of films. |
id |
RCAP_01793e7df594747254bc2817bfcab422 |
---|---|
oai_identifier_str |
oai:repositorium.sdum.uminho.pt:1822/46334 |
network_acronym_str |
RCAP |
network_name_str |
Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) |
repository_id_str |
7160 |
spelling |
Effect of moderate electric fields in the properties of starch and chitosan films reinforced with microcrystalline celluloseCelluloseElectric fieldElectro-heatingBiopolymerEdible coatingPackagingScience & TechnologyMicrocrystalline cellulose (MCC) can provide improved properties when the aim is the development of biodegradable packaging materials. In this work the physicochemical properties of polysaccharide-based films (chitosan and starch) with the incorporation of MCC and the application of moderate electric field (MEF) and ultrasonic bath (UB) as treatments, were evaluated. For each treatment, the thickness, moisture content, solubility, water vapor permeability, contact angle, mechanical properties, along with its color and opacity were determined. The surface morphologies of the films were assessed by scanning electron microscopy (SEM). X-ray diffraction (XRD), Fourier-transform infrared (FTIR) spectroscopy and thermogravimetric analysis (TGA) were also performed. It was observed that the addition of different concentrations of MCC as well as the application of MEF are responsible for changes in the properties of the films, being this effect dependent on the polysaccharide used. Chitosan-based films were slightly yellow, transparent and presented a more homogeneous structure. The use of MEF was efficient in decreasing the permeability to water vapor in chitosan based films without MCC, as well as in production of films with a more hydrophobic surface. The addition of MCC promoted more opaque, rigid, less flexible and less hydrophobic films. Starch-based films were whitish, with a more heterogeneous structure and the application of MEF generated more hydrophilic films with lower tensile strength and Youngs modulus. The films with MCC were more opaque, less flexible and less hydrophilic than the films without MCC. The composites presented good thermal properties, which increases their applicability as packaging materials. Therefore, the incorporation of MCC into polysaccharide-based films as well as the application of MEF can be an approach to change the properties of films.The authors acknowledge Coordenação de Aperfeiçoamento Pessoal de Ensino Superior (CAPES), Embrapa Agroindústria de Alimentos (EMBRAPA) and Universidade do Minho for financial support. The authors also thank Dmitri Petrovykh from International Iberian Nanotechnology Laboratory for FTIR analytical support. The author Ricardo N. Pereira gratefully acknowledge to Portuguese Foundation for Science and Technology (FCT) its financial grant (SFRH/BPD/81887/2011).info:eu-repo/semantics/publishedVersionElsevierUniversidade do MinhoCoelho, C. C. S.Cerqueira, Miguel Ângelo Parente RibeiroPereira, Ricardo Nuno CorreiaPastrana, Lorenzo M.Freitas-Silva, OtnielVicente, A. A.Cabral, Lourdes M. C.Teixeira, J. A.2017-10-152017-10-15T00:00:00Zinfo:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/articleapplication/pdfhttp://hdl.handle.net/1822/46334engCoelho, C. C. S.; Cerqueira, Miguel A.; Pereira, Ricardo N.; Pastrana, Lorenzo M.; Freitas-Silva, Otniel; Vicente, António A.; Cabral, Lourdes M. C.; Teixeira, José A., Effect of moderate electric fields in the properties of starch and chitosan films reinforced with microcrystalline cellulose. Carbohydrate Polymers, 174, 1181-1191, 20170144-86170144-861710.1016/j.carbpol.2017.07.00728821043http://www.journals.elsevier.com/carbohydrate-polymers/info:eu-repo/semantics/openAccessreponame:Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos)instname:Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informaçãoinstacron:RCAAP2023-07-21T12:47:52Zoai:repositorium.sdum.uminho.pt:1822/46334Portal AgregadorONGhttps://www.rcaap.pt/oai/openaireopendoar:71602024-03-19T19:46:00.165486Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) - Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informaçãofalse |
dc.title.none.fl_str_mv |
Effect of moderate electric fields in the properties of starch and chitosan films reinforced with microcrystalline cellulose |
title |
Effect of moderate electric fields in the properties of starch and chitosan films reinforced with microcrystalline cellulose |
spellingShingle |
Effect of moderate electric fields in the properties of starch and chitosan films reinforced with microcrystalline cellulose Coelho, C. C. S. Cellulose Electric field Electro-heating Biopolymer Edible coating Packaging Science & Technology |
title_short |
Effect of moderate electric fields in the properties of starch and chitosan films reinforced with microcrystalline cellulose |
title_full |
Effect of moderate electric fields in the properties of starch and chitosan films reinforced with microcrystalline cellulose |
title_fullStr |
Effect of moderate electric fields in the properties of starch and chitosan films reinforced with microcrystalline cellulose |
title_full_unstemmed |
Effect of moderate electric fields in the properties of starch and chitosan films reinforced with microcrystalline cellulose |
title_sort |
Effect of moderate electric fields in the properties of starch and chitosan films reinforced with microcrystalline cellulose |
author |
Coelho, C. C. S. |
author_facet |
Coelho, C. C. S. Cerqueira, Miguel Ângelo Parente Ribeiro Pereira, Ricardo Nuno Correia Pastrana, Lorenzo M. Freitas-Silva, Otniel Vicente, A. A. Cabral, Lourdes M. C. Teixeira, J. A. |
author_role |
author |
author2 |
Cerqueira, Miguel Ângelo Parente Ribeiro Pereira, Ricardo Nuno Correia Pastrana, Lorenzo M. Freitas-Silva, Otniel Vicente, A. A. Cabral, Lourdes M. C. Teixeira, J. A. |
author2_role |
author author author author author author author |
dc.contributor.none.fl_str_mv |
Universidade do Minho |
dc.contributor.author.fl_str_mv |
Coelho, C. C. S. Cerqueira, Miguel Ângelo Parente Ribeiro Pereira, Ricardo Nuno Correia Pastrana, Lorenzo M. Freitas-Silva, Otniel Vicente, A. A. Cabral, Lourdes M. C. Teixeira, J. A. |
dc.subject.por.fl_str_mv |
Cellulose Electric field Electro-heating Biopolymer Edible coating Packaging Science & Technology |
topic |
Cellulose Electric field Electro-heating Biopolymer Edible coating Packaging Science & Technology |
description |
Microcrystalline cellulose (MCC) can provide improved properties when the aim is the development of biodegradable packaging materials. In this work the physicochemical properties of polysaccharide-based films (chitosan and starch) with the incorporation of MCC and the application of moderate electric field (MEF) and ultrasonic bath (UB) as treatments, were evaluated. For each treatment, the thickness, moisture content, solubility, water vapor permeability, contact angle, mechanical properties, along with its color and opacity were determined. The surface morphologies of the films were assessed by scanning electron microscopy (SEM). X-ray diffraction (XRD), Fourier-transform infrared (FTIR) spectroscopy and thermogravimetric analysis (TGA) were also performed. It was observed that the addition of different concentrations of MCC as well as the application of MEF are responsible for changes in the properties of the films, being this effect dependent on the polysaccharide used. Chitosan-based films were slightly yellow, transparent and presented a more homogeneous structure. The use of MEF was efficient in decreasing the permeability to water vapor in chitosan based films without MCC, as well as in production of films with a more hydrophobic surface. The addition of MCC promoted more opaque, rigid, less flexible and less hydrophobic films. Starch-based films were whitish, with a more heterogeneous structure and the application of MEF generated more hydrophilic films with lower tensile strength and Youngs modulus. The films with MCC were more opaque, less flexible and less hydrophilic than the films without MCC. The composites presented good thermal properties, which increases their applicability as packaging materials. Therefore, the incorporation of MCC into polysaccharide-based films as well as the application of MEF can be an approach to change the properties of films. |
publishDate |
2017 |
dc.date.none.fl_str_mv |
2017-10-15 2017-10-15T00:00:00Z |
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://hdl.handle.net/1822/46334 |
url |
http://hdl.handle.net/1822/46334 |
dc.language.iso.fl_str_mv |
eng |
language |
eng |
dc.relation.none.fl_str_mv |
Coelho, C. C. S.; Cerqueira, Miguel A.; Pereira, Ricardo N.; Pastrana, Lorenzo M.; Freitas-Silva, Otniel; Vicente, António A.; Cabral, Lourdes M. C.; Teixeira, José A., Effect of moderate electric fields in the properties of starch and chitosan films reinforced with microcrystalline cellulose. Carbohydrate Polymers, 174, 1181-1191, 2017 0144-8617 0144-8617 10.1016/j.carbpol.2017.07.007 28821043 http://www.journals.elsevier.com/carbohydrate-polymers/ |
dc.rights.driver.fl_str_mv |
info:eu-repo/semantics/openAccess |
eu_rights_str_mv |
openAccess |
dc.format.none.fl_str_mv |
application/pdf |
dc.publisher.none.fl_str_mv |
Elsevier |
publisher.none.fl_str_mv |
Elsevier |
dc.source.none.fl_str_mv |
reponame:Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) instname:Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informação instacron:RCAAP |
instname_str |
Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informação |
instacron_str |
RCAAP |
institution |
RCAAP |
reponame_str |
Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) |
collection |
Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) |
repository.name.fl_str_mv |
Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) - Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informação |
repository.mail.fl_str_mv |
|
_version_ |
1799133026624471040 |