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Antimicrobial and antioxidant performance of various essential oils and natural extracts and their incorporation into biowaste derived poly(3-hydroxybutyrate-co-3-hydroxyvalerate) layers made from electrospun ultrathin fibers

2019-01-23Artigo científico Acesso aberto
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dc.contributor.authorFigueroa-Lopez, Kelly J.
dc.contributor.authorVicente, António A.
dc.contributor.authorReis, Maria A. M.
dc.contributor.authorTorres-Giner, Sergio
dc.contributor.authorLagaron, Jose M.
dc.contributor.institutionUCIBIO - Applied Molecular Biosciences Unit
dc.contributor.institutionDQ - Departamento de Química
dc.contributor.pblMDPI AG
dc.date.accessioned2022-12-16T22:07:29Z
dc.date.available2022-12-16T22:07:29Z
dc.date.issued2019-01-23
dc.descriptionThis research was supported by the Ministry of Science, Innovation, and Universities (MICIU) program number AGL2015-63855-C2-1-R and by the EU H2020 project YPACK (reference number 773872).
dc.description.abstractIn this research, the antibacterial and antioxidant properties of oregano essential oil (OEO), rosemary extract (RE), and green tea extract (GTE) were evaluated. These active substances were encapsulated into ultrathin fibers of poly(3-hydroxybutyrate-co-3-hydroxyvalerate) (PHBV) derived from fruit waste using solution electrospinning, and the resultant electrospun mats were annealed to produce continuous films. The incorporation of the active substances resulted in PHBV films with a relatively high contact transparency, but it also induced a slightly yellow appearance and increased the films opacity. Whereas OEO significantly reduced the onset of thermal degradation of PHBV, both the RE and GTE-containing PHBV films showed a thermal stability profile that was similar to the neat PHBV film. In any case, all the active PHBV films were stable up to approximately 200 °C. The incorporation of the active substances also resulted in a significant decrease in hydrophobicity. The antimicrobial and antioxidant activity of the films were finally evaluated in both open and closed systems for up to 15 days in order to anticipate the real packaging conditions. The results showed that the electrospun OEO-containing PHBV films presented the highest antimicrobial activity against two strains of food-borne bacteria, as well as the most significant antioxidant performance, ascribed to the films high content in carvacrol and thymol. Therefore, the PHBV films developed in this study presented high antimicrobial and antioxidant properties, and they can be applied as active layers to prolong the shelf life of the foods in biopackaging applications.en
dc.description.versionpublishersversion
dc.description.versionpublished
dc.format.extent22
dc.format.extent2303941
dc.identifier.doi10.3390/nano9020144
dc.identifier.issn2079-4991
dc.identifier.otherPURE: 13327264
dc.identifier.otherPURE UUID: 0fa2c6db-474a-41dc-af9f-0704e1754118
dc.identifier.otherScopus: 85061975512
dc.identifier.otherPubMed: 30678126
dc.identifier.otherPubMedCentral: PMC6410073
dc.identifier.otherWOS: 000460806700013
dc.identifier.urihttp://hdl.handle.net/10362/146316
dc.identifier.urlhttps://www.scopus.com/pages/publications/85061975512
dc.language.isoeng
dc.peerreviewedyes
dc.subjectAntibacterial
dc.subjectAntioxidant
dc.subjectElectrospun nanofibers
dc.subjectGreen tea
dc.subjectOregano
dc.subjectPHBV
dc.subjectRosemary
dc.subjectGeneral Chemical Engineering
dc.subjectGeneral Materials Science
dc.titleAntimicrobial and antioxidant performance of various essential oils and natural extracts and their incorporation into biowaste derived poly(3-hydroxybutyrate-co-3-hydroxyvalerate) layers made from electrospun ultrathin fibersen
dc.typejournal article
degois.publication.issue2
degois.publication.titleNanomaterials
degois.publication.volume9
dspace.entity.typePublication
rcaap.rightsopenAccess

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