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Optimization of Extraction Conditions for Gracilaria gracilis Extracts and Their Antioxidative Stability as Part of Microfiber Food Coating Additives

2020-09-05Journal article Open access
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dc.contributor.authorReboleira, João
dc.contributor.authorGanhão, Rui
dc.contributor.authorMendes, Susana
dc.contributor.authorAdão, Pedro
dc.contributor.authorAndrade, Mariana
dc.contributor.authorVilarinho, Fernanda
dc.contributor.authorSanches-Silva, Ana
dc.contributor.authorSousa, Dora
dc.contributor.authorMateus, Artur
dc.contributor.authorBernardino, Susana
dc.date.accessioned2021-03-15T17:07:17Z
dc.date.available2021-03-15T17:07:17Z
dc.date.issued2020-09-05
dc.description.abstractIncorporation of antioxidant agents in edible films and packages often relies in the usage of essential oils and other concentrated hydrophobic liquids, with reliable increases in antimicrobial and antioxidant activities of the overall composite, but with less desirable synthetic sources and extraction methods. Hydroethanolic extracts of commercially-available red macroalgae Gracilaria gracilis were evaluated for their antioxidant potential and phenolic content, as part of the selection of algal biomass for the enrichment of thermoplastic film coatings. The extracts were obtained through use of solid-liquid extractions, over which yield, DPPH radical reduction capacity, total phenolic content, and FRAP activity assays were measured. Solid-to-liquid ratio, extraction time, and ethanol percentages were selected as independent variables, and response surface methodology (RSM) was then used to estimate the effect of each extraction condition on the tested bioactivities. These extracts were electrospun into polypropylene films and the antioxidant activity of these coatings was measured. Similar bioactivities were measured for both 100% ethanolic and aqueous extracts, revealing high viability in the application of both for antioxidant coating purposes, though activity losses as a result of the electrospinning process were above 60% in all cases.pt_PT
dc.description.sponsorshipThis work was supported by the research project “i.FILM-Multifunctional Films for Intelligent and Active Applications” (n◦ 17921) cofounded by European Regional Development Fund (FEDER) through the Competitiveness and Internationalization Operational Program under the “Portugal 2020” Program, Call no. 33/SI/2015, Co-Promotion Projects and by the Integrated Programme of SR&TD “Smart Valorization of Endogenous Marine Biological Resources Under a Changing Climate” (reference Centro-01-0145-FEDER-000018), co-funded by Centro 2020 program, Portugal 2020, European Union, through the European Regional Development Fund. This work was also supported by the Fundação para a Ciência e a Tecnologia (FCT) and Centro2020 through the following Projects: UIDB/04044/2020, UIDP/04044/2020, PAMI—ROTEIRO/0328/2013 (N◦ 022158) and MATIS Molecules 2020, 25, 4060 11 of 12 (CENTRO-01-0145-FEDER-000014-3362). Also, this study had the support of Fundação para a Ciência e Tecnologia (FCT), through the strategic project UID/MAR/04292/2019 granted to MARE.pt_PT
dc.description.versioninfo:eu-repo/semantics/publishedVersionpt_PT
dc.identifier.citationMolecules. 2020 Sep 5;25(18):4060. doi: 10.3390/molecules25184060pt_PT
dc.identifier.doi10.3390/molecules25184060pt_PT
dc.identifier.issn1420-3049
dc.identifier.urihttp://hdl.handle.net/10400.18/7503
dc.language.isoengpt_PT
dc.peerreviewedyespt_PT
dc.publisherMDPIpt_PT
dc.relationCentre for Rapid and Sustainable Product Development
dc.relationCentre for Rapid and Sustainable Product Development
dc.relationMARE - Marine and Environmental Sciences Centre
dc.relation.publisherversionhttps://www.mdpi.com/1420-3049/25/18/4060pt_PT
dc.rights.urihttp://creativecommons.org/licenses/by/4.0/pt_PT
dc.subjectActive Packagingpt_PT
dc.subjectResponse Surface Methodologypt_PT
dc.subjectRhodophytapt_PT
dc.subjectElectrospinningpt_PT
dc.subjectBox– Behnken Designpt_PT
dc.subjectSegurança Alimentarpt_PT
dc.subjectToxicologia dos Alimentospt_PT
dc.subjectComposição dos Alimentospt_PT
dc.subjectToxicologiapt_PT
dc.titleOptimization of Extraction Conditions for Gracilaria gracilis Extracts and Their Antioxidative Stability as Part of Microfiber Food Coating Additivespt_PT
dc.typejournal article
dspace.entity.typePublication
oaire.awardTitleCentre for Rapid and Sustainable Product Development
oaire.awardTitleCentre for Rapid and Sustainable Product Development
oaire.awardTitleMARE - Marine and Environmental Sciences Centre
oaire.awardURIinfo:eu-repo/grantAgreement/FCT/6817 - DCRRNI ID/UIDB%2F04044%2F2020/PT
oaire.awardURIinfo:eu-repo/grantAgreement/FCT/6817 - DCRRNI ID/UIDP%2F04044%2F2020/PT
oaire.awardURIinfo:eu-repo/grantAgreement/FCT/6817 - DCRRNI ID/UID%2FMAR%2F04292%2F2019/PT
oaire.citation.issue18pt_PT
oaire.citation.startPage4060pt_PT
oaire.citation.titleMoleculespt_PT
oaire.citation.volume25pt_PT
oaire.fundingStream6817 - DCRRNI ID
oaire.fundingStream6817 - DCRRNI ID
oaire.fundingStream6817 - DCRRNI ID
project.funder.identifierhttp://doi.org/10.13039/501100001871
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
project.funder.nameFundação para a Ciência e a Tecnologia
rcaap.embargofctAcesso de acordo com página web do editor da revista.pt_PT
rcaap.rightsopenAccesspt_PT
rcaap.typearticlept_PT
relation.isProjectOfPublicationcaa86821-d09d-491d-bb12-db4b3d667c44
relation.isProjectOfPublication4817db23-37cf-402f-b942-5fd9b20e35de
relation.isProjectOfPublication957ec23f-f96b-4771-a0d9-60f8f9df1638
relation.isProjectOfPublication.latestForDiscoverycaa86821-d09d-491d-bb12-db4b3d667c44

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