Immobilization of beta-cyclodextrin in ethylene-vinyl alcohol copolymer for active food packaging applications

8 pages, 9 figures, 1 tables.-- Printed version published in May 2010.

Detalles Bibliográficos
Autores: López de Dicastillo, Carol, Gallur, Miriam, Catalá Moragrega, Ramón, Hernández Muñoz, Pilar, Gavara, Rafael
Tipo de recurso: artículo
Fecha de publicación:2010
País:España
Institución:Consejo Superior de Investigaciones Científicas (CSIC)
Repositorio:DIGITAL.CSIC. Repositorio Institucional del CSIC
OAI Identifier:oai:digital.csic.es:10261/23767
Acceso en línea:http://hdl.handle.net/10261/23767
Access Level:acceso abierto
Palabra clave:β-Cyclodextrin
EVOH copolymer
Extrusion
Immobilization
DSC
Retention of organic compounds
Gas permeation
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spelling Immobilization of beta-cyclodextrin in ethylene-vinyl alcohol copolymer for active food packaging applicationsLópez de Dicastillo, CarolGallur, MiriamCatalá Moragrega, RamónHernández Muñoz, PilarGavara, Rafaelβ-CyclodextrinEVOH copolymerExtrusionImmobilizationDSCRetention of organic compoundsGas permeation8 pages, 9 figures, 1 tables.-- Printed version published in May 2010.Current developments in active food packaging are focusing on incorporating agents into the polymeric package walls that will release or retain substances to improve the quality, safety and shelf-life of the food. Because cyclodextrins are able to form inclusion complexes with various compounds, they are of potential interest as agents to retain or scavenge substances in active packaging applications. In this study, β-cyclodextrin (βCD) was successfully immobilized in an ethylene-vinyl alcohol copolymer with a 44% molar percentage of ethylene (EVOH44) by using regular extrusion with glycerol as an adjuvant. Films with 10%, 20% and 30% of βCD were flexible and transparent. The presence of the agent slightly increased the glass-transition temperature and the crystallinity percentage of the polymer, that is to say, it induced some fragility and a nucleating effect. The water vapor, oxygen and carbon dioxide barrier properties of the materials containing βCD were determined and compared with those of the pure polymeric material. Permeability to these three permeants increased with the addition of βCD due to the presence of discontinuities in the matrix and to the internal cavity of the oligosaccharide. Also the CO2/O2 permselectivity increased with the addition of βCD. Finally, the potential effect of the composites in the food aroma was analyzed. The materials with βCD preferentially sorbed apolar compounds such as terpenes. This characteristic could be useful in active packaging applications for preferentially retaining undesired apolar food components like hexanal or cholesterol.The authors acknowledge the financial support of the Spanish Ministry of Science and Innovation, projects AGL2006-02176 and Fun-C-Food CSD2007-00063, and the C. L-d-D fellowship (FPU program).Peer reviewedElsevier201020102010info:eu-repo/semantics/articlehttp://purl.org/coar/resource_type/c_6501145408 bytesapplication/mswordhttp://hdl.handle.net/10261/23767reponame:DIGITAL.CSIC. Repositorio Institucional del CSICinstname:Consejo Superior de Investigaciones Científicas (CSIC)Ingléshttp://dx.doi.org/10.1016/j.memsci.2010.02.049info:eu-repo/semantics/openAccessoai:digital.csic.es:10261/237672026-05-22T06:33:51Z
dc.title.none.fl_str_mv Immobilization of beta-cyclodextrin in ethylene-vinyl alcohol copolymer for active food packaging applications
title Immobilization of beta-cyclodextrin in ethylene-vinyl alcohol copolymer for active food packaging applications
spellingShingle Immobilization of beta-cyclodextrin in ethylene-vinyl alcohol copolymer for active food packaging applications
López de Dicastillo, Carol
β-Cyclodextrin
EVOH copolymer
Extrusion
Immobilization
DSC
Retention of organic compounds
Gas permeation
title_short Immobilization of beta-cyclodextrin in ethylene-vinyl alcohol copolymer for active food packaging applications
title_full Immobilization of beta-cyclodextrin in ethylene-vinyl alcohol copolymer for active food packaging applications
title_fullStr Immobilization of beta-cyclodextrin in ethylene-vinyl alcohol copolymer for active food packaging applications
title_full_unstemmed Immobilization of beta-cyclodextrin in ethylene-vinyl alcohol copolymer for active food packaging applications
title_sort Immobilization of beta-cyclodextrin in ethylene-vinyl alcohol copolymer for active food packaging applications
dc.creator.none.fl_str_mv López de Dicastillo, Carol
Gallur, Miriam
Catalá Moragrega, Ramón
Hernández Muñoz, Pilar
Gavara, Rafael
author López de Dicastillo, Carol
author_facet López de Dicastillo, Carol
Gallur, Miriam
Catalá Moragrega, Ramón
Hernández Muñoz, Pilar
Gavara, Rafael
author_role author
author2 Gallur, Miriam
Catalá Moragrega, Ramón
Hernández Muñoz, Pilar
Gavara, Rafael
author2_role author
author
author
author
dc.subject.none.fl_str_mv β-Cyclodextrin
EVOH copolymer
Extrusion
Immobilization
DSC
Retention of organic compounds
Gas permeation
topic β-Cyclodextrin
EVOH copolymer
Extrusion
Immobilization
DSC
Retention of organic compounds
Gas permeation
description 8 pages, 9 figures, 1 tables.-- Printed version published in May 2010.
publishDate 2010
dc.date.none.fl_str_mv 2010
2010
2010
dc.type.none.fl_str_mv info:eu-repo/semantics/article
http://purl.org/coar/resource_type/c_6501
format article
dc.identifier.none.fl_str_mv http://hdl.handle.net/10261/23767
url http://hdl.handle.net/10261/23767
dc.language.none.fl_str_mv Inglés
language_invalid_str_mv Inglés
dc.relation.none.fl_str_mv http://dx.doi.org/10.1016/j.memsci.2010.02.049
dc.rights.none.fl_str_mv info:eu-repo/semantics/openAccess
eu_rights_str_mv openAccess
dc.format.none.fl_str_mv 145408 bytes
application/msword
dc.publisher.none.fl_str_mv Elsevier
publisher.none.fl_str_mv Elsevier
dc.source.none.fl_str_mv reponame:DIGITAL.CSIC. Repositorio Institucional del CSIC
instname:Consejo Superior de Investigaciones Científicas (CSIC)
instname_str Consejo Superior de Investigaciones Científicas (CSIC)
reponame_str DIGITAL.CSIC. Repositorio Institucional del CSIC
collection DIGITAL.CSIC. Repositorio Institucional del CSIC
repository.name.fl_str_mv
repository.mail.fl_str_mv
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score 15,81155

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