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Encapsulation in Polyvinylpyrrolidone Protects the Ora-Pro-Nobis (Pereskia Aculeata Miller) Extracts against the Deleterious effects of In Vitro Gastrointestinal Digestion

2026Artigo científico Acesso aberto
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datacite.subject.fosCiências Agrárias::Biotecnologia Agrária e Alimentar
datacite.subject.sdg03:Saúde de Qualidade
datacite.subject.sdg02:Erradicar a Fome
datacite.subject.sdg12:Produção e Consumo Sustentáveis
dc.contributor.authorTeixeira, Valéria Maria Costa
dc.contributor.authorOliveira, Anielle de
dc.contributor.authorSantos Filho, José Rivaldo dos
dc.contributor.authorCarvalho, Amarilis Santos de
dc.contributor.authorUchoa, Ashley
dc.contributor.authorPeron, Ana Paula
dc.contributor.authorMandim, Filipa
dc.contributor.authorPereira, Eliana
dc.contributor.authorLeimann, Fernanda Vitoria
dc.contributor.authorContato, Alex Graça
dc.contributor.authorPeralta, Rosane Marina
dc.date.accessioned2026-03-20T14:42:59Z
dc.date.available2026-03-20T14:42:59Z
dc.date.issued2026
dc.description.abstractPereskia aculeata Miller, commonly known as ora-pro-nobis, is a South American plant widely found in Brazil and classified as a wild plant. Its leaves are rich in bioactive compounds with reported antioxidant, antimicrobial, and anti-inflammatory properties, supporting growing interest in their use as functional ingredients. This study compared conventional hydroethanolic extraction of antioxidant compounds from P. aculeata leaves with a process combining extraction and simultaneous encapsulation, aiming to evaluate differences in stability and bioaccessibility during simulated gastrointestinal digestion. Free and encapsulated extracts (80:20 ethanol: water, v/v) were characterized by Fourier-transform infrared spectroscopy (FTIR), while encapsulated systems were further analyzed by dynamic light scattering (DLS), atomic force microscopy (AFM), and transmission electron microscopy (TEM). Thermal behavior and antiproliferative activity were also evaluated. Total phenolics, flavonoids and antioxidant activity were determined before and after in vitro digestion. Extraction and encapsulation yields were 17.25% and 92.75%, respectively, with the encapsulated extract corresponding to 62% of the free extract. Simulated digestion reduced phenolic content, flavonoid levels, and antioxidant activity in both systems; however, significantly lower losses were observed for the encapsulated extract, indicating improved stability. The apparent divergence between better radical-scavenging stability (ABTS/DPPH) and lower TPC/TFC bioaccessibility in the encapsulated samples likely reflects release- and assay-specific effects. PVP can establish hydrogen-bond and dipolar interactions with phenolics, which may slow their diffusion or release and reduce their immediate availability to react with the Folin-Ciocalteu and aluminum-chloride reagents, lowering measured TPC/TFC in the digesta fraction. In contrast, encapsulation can limit oxidative degradation during digestion, thereby preserving redox-active constituents and sustaining radical-scavenging capacity in ABTS/DPPH assays.eng
dc.description.sponsorshipThe Article Processing Charge (APC) for the publication of this research was funded by the Coordenação de Aperfeiçoamento de Pessoal de Nível Superior - Brasil (CAPES) (ROR identifier: 00x0ma614). Valéria Maria Costa Teixeira was a grant recipient of the Coordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES). This work was supported by national funds through FCT/MCTES (PID-DAC): CIMO, UIDB/00690/2020 (DOI: https://doi.org/10.54499/UIDB/00690/2020) and UIDP/00690/2020 (DOI: https://doi.org/10.54499/UIDP/00690/2020) and SusTEC, LA/P/0007/2020 (DOI: https://doi.org/10.54499/LA/P/0007/2020).
dc.identifier.citationTeixeira, Valeria M. C.; De Oliveira, Anielle; Santos Filho, José Rivaldo dos.; De Carvalho, Amarilis S.; Uchoa, Ashley; Peron Ana P.; Mandim, Filipa; Pereira, Eliana; Leimann, Fernanda V.; Contato, Alex G.; Peralta, Rosane M. (2026). Encapsulation in Polyvinylpyrrolidone Protects the Ora-Pro-Nobis (Pereskia Aculeata Miller) Extracts against the Deleterious effects of In Vitro Gastrointestinal Digestion. Food Biophysics. ISSN 1557-1858. 21:1, p. 1-14
dc.identifier.doi10.1007/s11483-026-10116-w
dc.identifier.issn1557-1858
dc.identifier.issn1557-1866
dc.identifier.urihttp://hdl.handle.net/10198/36173
dc.language.isoeng
dc.peerreviewedyes
dc.publisherSpringer
dc.relationMountain Research Center
dc.relationAssociate Laboratory for Sustainability and Tecnology in Mountain Regions
dc.relation.ispartofFood Biophysics
dc.rights.urihttp://creativecommons.org/licenses/by-nc/4.0/
dc.subjectAntioxidant activity
dc.subjectBioaccessibility
dc.subjectEncapsulation
dc.subjectGastrointestinal digestion
dc.subjectOra pro-nobis
dc.titleEncapsulation in Polyvinylpyrrolidone Protects the Ora-Pro-Nobis (Pereskia Aculeata Miller) Extracts against the Deleterious effects of In Vitro Gastrointestinal Digestioneng
dc.typejournal article
dspace.entity.typePublication
oaire.awardNumberUIDP/00690/2020
oaire.awardNumberLA/P/0007/2020
oaire.awardTitleMountain Research Center
oaire.awardTitleAssociate Laboratory for Sustainability and Tecnology in Mountain Regions
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.endPage14
oaire.citation.issue1
oaire.citation.startPage1
oaire.citation.titleFood Biophysics
oaire.citation.volume21
oaire.fundingStream6817 - DCRRNI ID
oaire.fundingStream6817 - DCRRNI ID
oaire.versionhttp://purl.org/coar/version/c_970fb48d4fbd8a85
person.familyNameMandim
person.familyNamePereira
person.givenNameFilipa
person.givenNameEliana
person.identifier.ciencia-idF318-9049-EB99
person.identifier.ciencia-idBE17-462D-9A75
person.identifier.orcid0000-0002-6494-2326
person.identifier.orcid0000-0003-2854-6745
person.identifier.ridQ-8017-2018
person.identifier.scopus-author-id55938912300
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
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relation.isAuthorOfPublication.latestForDiscoverybcc274d4-7e6c-46a8-8e49-2752f9dbfbcd
relation.isProjectOfPublication0aac8939-28c2-46f4-ab6b-439dba7f9942
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