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Effect of pomegranate peels and extract in barrier, optical and mechanical properties of polylactic acid-based active packaging

2023-03-21Conference object Open access
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dc.contributor.authorAndrade, Mariana
dc.contributor.authorVilarinho, Fernanda
dc.contributor.authorRodrigues, Pedro
dc.contributor.authorBarros, Carolina
dc.contributor.authorCruz, Vasco
dc.contributor.authorMachado, Ana Vera
dc.contributor.authorBarbosa, Cássia
dc.contributor.authorRamos, Fernando
dc.contributor.authorSanches Silva, Ana
dc.date.accessioned2024-01-17T16:33:09Z
dc.date.available2024-01-17T16:33:09Z
dc.date.issued2023-03-21
dc.description.abstractBeing more than 50 % of pomegranate (Punica granatum L.) constituted by non-edible parts, namely peels (50%) and seeds (10%), pomegranate is an excellent source of by-products. Its peels and seeds present excellent antioxidant and antimicrobial activities and a high content of phenolic compounds, namely ellagitannins. This work aimed to evaluate the mechanical and optical properties of two polylactic acid (PLA)-based active packaging with 3 wt.% pomegranate peels (3PP) or 3 wt.% pomegranate peel extract (3PPE). All the samples were produced on a laboratory scale with techniques and processing conditions used in industry. The production of packaging with flexible films is mainly carried out by tubular film extrusion. With this processing method it is possible to produce samples with molecular orientation and reduced thickness equal to that of the packages currently on the market. The structural and morphological characterization of the films were evaluated by FTIR and SEM, and the color by UV-vis. Water vapor transmission and mechanical properties were also measured. The color was measured by Shimadzu UV2401PC reflectance spectrophotometer. Water vapor transmission, oxygen permeability and mechanical properties were also measured. The FTIR and SEM results indicate the incorporation of the pomegranate peels and peels extract in the PLA matrix, where PLA/3PPE showed better particle homogenization than the PLA/3PP. Regarding the color variations, the PLA/3PPE presented higher variations in terms of L*, a*, and b*. The incorporation of pomegranate derivates has a negative effect on the tensile strength and Young modulus, but a significant increase of the elongation at break for PLA/3PPE. The PLA film's water vapor barrier properties do not suffer any alteration with the incorporation of pomegranate extract.pt_PT
dc.description.sponsorshipCássia H. Barbosa thanks the Fundação para a Ciência e Tecnologia (FCT), Portugal, for the PhD. Grant 2021.08154.BD. This work was carried out under the MobFOOD Project (POCI-01-0247-FEDER-024524 and LISBOA-01-0247-FEDER-024524), funded by POCI (Operational Programme “Competitiveness and Internationalization”) and POR Lisboa (Lisbon Regional Operational Programme), through ANI, and by the Programa de Cooperación Interreg-A España–Portugal (POCTEP) 2014–2020 (project 0377_IBERPHENOL_6_E). This research was also funded by PT national funds (FCT/MCTES, Fundação para a Ciência e Tecnologia and Ministério da Ciência, Tecnologia e Ensino Superior) through the grant UIDB/00211/2020).pt_PT
dc.description.versioninfo:eu-repo/semantics/publishedVersionpt_PT
dc.identifier.urihttp://hdl.handle.net/10400.18/8916
dc.language.isoengpt_PT
dc.relationCenter for the Study of Animal Science
dc.subjectPomegranate Peelspt_PT
dc.subjectFood Packagingpt_PT
dc.subjectNatural Extractspt_PT
dc.subjectSegurança Alimentarpt_PT
dc.titleEffect of pomegranate peels and extract in barrier, optical and mechanical properties of polylactic acid-based active packagingpt_PT
dc.typeconference object
dspace.entity.typePublication
oaire.awardTitleCenter for the Study of Animal Science
oaire.awardURIinfo:eu-repo/grantAgreement/FCT/6817 - DCRRNI ID/UIDB%2F00211%2F2020/PT
oaire.awardURIinfo:eu-repo/grantAgreement/FCT/OE/2021.08154.BD/PT
oaire.citation.conferencePlacePorto, Portugalpt_PT
oaire.citation.title2nd Dare2change: Innovation-Driven Agrifood Business, 21 março 2023pt_PT
oaire.fundingStream6817 - DCRRNI ID
oaire.fundingStreamOE
project.funder.identifierhttp://doi.org/10.13039/501100001871
project.funder.identifierhttp://doi.org/10.13039/501100001871
project.funder.nameFundação para a Ciência e a Tecnologia
project.funder.nameFundação para a Ciência e a Tecnologia
rcaap.rightsopenAccesspt_PT
rcaap.typeconferenceObjectpt_PT
relation.isProjectOfPublication69b75eb9-6f25-4ad8-98db-6cc7e9bcdcc7
relation.isProjectOfPublication4bf6b417-9ca7-4789-9d0c-4c83efb0fd9a
relation.isProjectOfPublication.latestForDiscovery69b75eb9-6f25-4ad8-98db-6cc7e9bcdcc7

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