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Alginate Edible Films Containing Essential Oils: Characterization and Bioactive Potential

2025Journal article Open access
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datacite.subject.fosCiências Agrárias::Agricultura, Silvicultura e Pescas
datacite.subject.sdg03:Saúde de Qualidade
datacite.subject.sdg15:Proteger a Vida Terrestre
dc.contributor.authorLopes, Ana I.
dc.contributor.authorMelo, Adma
dc.contributor.authorAfonso, Tiago B.
dc.contributor.authorSilva, Sara
dc.contributor.authorBarros, Lillian
dc.contributor.authorTavaria, Freni K.
dc.contributor.authorPintado, Manuela
dc.date.accessioned2025-05-29T13:09:25Z
dc.date.available2025-05-29T13:09:25Z
dc.date.issued2025
dc.description.abstractEssential oils (EOs) are natural substances rich in phenolic compounds with notable antimicrobial and antioxidant properties. However, they present some limitations, such as low stability and bioavailability. Incorporating EOs into polymeric films offers a novel approach to overcome these challenges while enhancing their efficacy. In this study, we produced and thoroughly characterized alginate-based edible films incorporated with five different EOs—rosemary, eucalyptus, oregano, sage, and thyme. This is the first comprehensive investigation to include this diverse range of EOs in alginate films. Their antimicrobial and antioxidant activities were also evaluated. The results demonstrated that alginate films containing EOs exhibited significant bioactive properties. Notably, the film incorporated with oregano EO completely inhibited the growth of all tested bacteria and fungi and showed the highest antioxidant activity. Based on these findings, alginate films containing EOs present promising bioactive potential and could serve as biodegradable alternatives to conventional packaging materials, reducing environmental impact. However, further studies are necessary to assess their safety profile and confirm their viability as replacements for traditional food packaging. Future research should focus on evaluating cytotoxicity, genotoxicity, and the practical application of these films in food matrices.eng
dc.description.sponsorshipThis work was financially supported by project BIOma—Soluções integradas de BIOeconomia para a Mobilização da cadeia Agroalimentar (POCI-01-0247-FEDER-046112) co-financed by Fundo Europeu de Desenvolvimento Regional (FEDER) through Programa Operacional Competitividade de Internacionalização (POCI). This research was also funded by National Funds from FCT—Fundação para a Ciência e a Tecnologia through projects UIDB/50016/2020 (CBQF), UIDB/00690/2020 and UIDP/00690/2020 (CIMO) and LA/P/0007/2020 (SusTEC).
dc.identifier.citationLopes, Ana I.; Melo, Adma; Afonso, Tiago B.; Silva, Sara; Barros, Lillian; Tavaria, Freni (2025). Alginate Edible Films Containing Essential Oils: Characterization and Bioactive Potential. Plasma Processes and Polymers. ISSN 2073-4360. 17:9, p. 1-19
dc.identifier.doi10.3390/polym17091188
dc.identifier.issn2073-4360
dc.identifier.urihttp://hdl.handle.net/10198/34503
dc.language.isoeng
dc.peerreviewedyes
dc.publisherMDPI
dc.relationMountain Research Center
dc.relationCentre of Biotechnology and Fine Chemistry
dc.relationMountain Research Center
dc.relationAssociate Laboratory for Sustainability and Tecnology in Mountain Regions
dc.relation.ispartofPolymers
dc.rights.urihttp://creativecommons.org/licenses/by/4.0/
dc.subjectEdible films
dc.subjectEssential oils
dc.subjectAntimicrobial activity
dc.subjectAntioxidant activity
dc.subjectFilm’s characterization
dc.titleAlginate Edible Films Containing Essential Oils: Characterization and Bioactive Potentialeng
dc.typejournal article
dspace.entity.typePublication
oaire.awardTitleMountain Research Center
oaire.awardTitleCentre of Biotechnology and Fine Chemistry
oaire.awardTitleMountain Research Center
oaire.awardTitleAssociate Laboratory for Sustainability and Tecnology in Mountain Regions
oaire.awardURIinfo:eu-repo/grantAgreement/FCT/6817 - DCRRNI ID/UIDB%2F00690%2F2020/PT
oaire.awardURIinfo:eu-repo/grantAgreement/FCT/6817 - DCRRNI ID/UIDB%2F50016%2F2020/PT
oaire.awardURIinfo:eu-repo/grantAgreement/FCT/6817 - DCRRNI ID/UIDP%2F00690%2F2020/PT
oaire.awardURIinfo:eu-repo/grantAgreement/FCT/6817 - DCRRNI ID/LA%2FP%2F0007%2F2020/PT
oaire.citation.endPage19
oaire.citation.issue9
oaire.citation.startPage1
oaire.citation.titlePolymers
oaire.citation.volume17
oaire.fundingStream6817 - DCRRNI ID
oaire.fundingStream6817 - DCRRNI ID
oaire.fundingStream6817 - DCRRNI ID
oaire.fundingStream6817 - DCRRNI ID
oaire.versionhttp://purl.org/coar/version/c_970fb48d4fbd8a85
person.familyNameBarros
person.givenNameLillian
person.identifier469085
person.identifier.ciencia-id9616-35CB-D001
person.identifier.orcid0000-0002-9050-5189
person.identifier.ridJ-3600-2013
person.identifier.scopus-author-id35236343600
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.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
project.funder.nameFundação para a Ciência e a Tecnologia
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