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Mono and multilayer active films containing green tea to extend food shelf life

2022-08-02Journal article Restricted access
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dc.contributor.authorVieira, Dalila M.
dc.contributor.authorAndrade, Mariana
dc.contributor.authorVilarinho, Fernanda
dc.contributor.authorSanches Silva, Ana
dc.contributor.authorRodrigues, Pedro
dc.contributor.authorCastro, M. Cidália
dc.contributor.authorMachado, Ana Vera
dc.date.accessioned2023-02-06T14:12:41Z
dc.date.available2023-02-06T14:12:41Z
dc.date.issued2022-08-02
dc.description.abstractAn active packaging film made of one and two-layers structure based on low-density polyethylene (LDPE) was produced with the incorporation of green tea extract (GTE) at different amounts by blown film extrusion. Film structure, optical, mechanical, antioxidant and barrier properties were characterized. The films revealed homogeneous film surface, the presence of GTE increases the tensile properties, improves friction coefficient and reduces LDPE films transparency. Moreover, the antioxidant capacity and barrier properties (water and oxygen) were enhanced, even at low concentrations. This study demonstrates the benefits of GTE incorporation into LDPE matrix, mainly in coextruded films, and its potential to develop an active and sustainable food packaging film at industrial scale.pt_PT
dc.description.abstractHighlights: Extrusion of active mono and two-layers films of LDPE and GTE; The incorporation of GTE increases the hydrophobicity of the active films; Antioxidant capacity and barrier properties enhanced with GTE addition; LDPE/GTE can be produced in industry using commercial blown-film extrusion lines.pt_PT
dc.description.sponsorshipThe authors acknowledge the financial support by Portugal 2020, and Fundo Social Europeu (FSE) through Programa Operacional Regional do NORTE (NORTE-08-5369-FSE-000034), developed under the program “IMPULSE - Polímeros e Compositos: ´ Drivers da inovaçao ˜ tecnologica ´ e da competitividade industrial” and TSSiPRO - technologies for sustainable and smart innovative products - NORTE-01-0145- FEDER-000015.pt_PT
dc.description.versioninfo:eu-repo/semantics/publishedVersionpt_PT
dc.identifier.citationFood Packag. 2022 Sep;33:100918. doi:10.1016/j.fpsl.2022.100918. Epub 2022 Aug 2pt_PT
dc.identifier.doi10.1016/j.fpsl.2022.100918pt_PT
dc.identifier.issn2214-2894
dc.identifier.urihttp://hdl.handle.net/10400.18/8502
dc.language.isoengpt_PT
dc.peerreviewedyespt_PT
dc.publisherElsevierpt_PT
dc.relation.publisherversionhttps://www.sciencedirect.com/science/article/pii/S2214289422001107?via%3Dihubpt_PT
dc.rights.urihttp://creativecommons.org/licenses/by-nc-nd/4.0/pt_PT
dc.subjectActive Packagingpt_PT
dc.subjectBlown Film Extrusionpt_PT
dc.subjectGreen Tea Extractspt_PT
dc.subjectAntioxidant Capacitypt_PT
dc.subjectBarrier Propertiespt_PT
dc.subjectSegurança Alimentarpt_PT
dc.titleMono and multilayer active films containing green tea to extend food shelf lifept_PT
dc.typejournal article
dspace.entity.typePublication
oaire.citation.startPage100918pt_PT
oaire.citation.titleFood Packaging and Shelf Lifept_PT
oaire.citation.volume33pt_PT
rcaap.embargofctAcesso de acordo com política editorial da revista.pt_PT
rcaap.rightsembargoedAccesspt_PT
rcaap.typearticlept_PT

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