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Exploring acorn shells: Phenolic composition and bioactive potential for sustainable valorization

2025Artigo científico Acesso aberto
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datacite.subject.fosCiências Agrárias::Agricultura, Silvicultura e Pescas
datacite.subject.sdg15:Proteger a Vida Terrestre
dc.contributor.authorMateus, Cristiano
dc.contributor.authorAlonso-Esteban, José Ignacio
dc.contributor.authorFinimundy, Tiane C.
dc.contributor.authorMandim, Filipa
dc.contributor.authorOliveira, Izamara
dc.contributor.authorBabo, Pedro
dc.contributor.authorFerreira, Isabel C.F.R.
dc.contributor.authorBarros, Lillian
dc.date.accessioned2025-04-01T15:34:56Z
dc.date.available2025-04-01T15:34:56Z
dc.date.issued2025
dc.description.abstractPedunculate (Quercus robur L.), holm (Quercus rotundifolia Lam.), and cork (Quercus suber L.) oaks are abundant across the Portuguese landscape. This study aims to evaluate the phenolic composition and bioactivities of acorn shell samples and determine their potential as a functional compound source. In total, five acorn shell samples collected in different locations and from different species were analyzed: Q. rotundifolia (Q. rot-1 and Q. rot-2), Q. suber (Q. sub-1 and Q. sub-2) and Q. robur (Q. rob-1). A total of nine phenolic compounds were tentatively identified, namely gallic and ellagic acids and derivatives. Digalloyl hexoside was the compound detected in higher concentrations in all extracts (2.093 – 8.3 mg/g extract). Q. suber samples exhibited the lowest IC50 values for TBARS assay, lower than the positive control used (Trolox). Overall, the studied samples demonstrated the capacity to inhibit the proliferation of all tumor cell lines tested. Sample Q. sub-1 demonstrated the most promising antibacterial capacity. According to the results, the acorn shell extracts exhibited promising potential, and it may be interesting to conduct a deeper study on the samples of this species.eng
dc.description.sponsorshipThis work was supported by national funds through FCT/MCTES (PIDDAC): CIMO, UIDB/00690/2020 (DOI: 10.54499/UIDB/00690/ 2020) and UIDP/00690/2020 (DOI: 10.54499/UIDP/00690/2020); and SusTEC, LA/P/0007/2020 (DOI: 10.54499/LA/P/0007/2020). National funding by FCT, through the scientific employment program-contract with L. Barros (CEEC-INST, DOI: 10.54499/CEECINST/00107/2021/ CP2793/CT0002). This work received financial support from "La Caixa" Foundation through "Programa Promove (Concurso 2020 - Projetos piloto inovadores)", within the scope of the project Acorn4MED - Valorisation of acorn forest residue for application in biomedicine and from FCT, I.P. through PRIMA/0005/2022, within the scope of the project MEDACORNET - Rescuing acorns as a Mediterranean traditional superfood. The authors are thankful for the plant samples provided by LandraTech, Lda.
dc.identifier.citationMateus, Cristiano; Alonso-Esteban, José Ignacio; Finimundy, Tiane Cristine; Mandim Pires, Ana Filipa; Oliveira, Izamara de; Babo, Pedro; Canadas, Raphael; Ferreira, Isabel C.F.R.; Barros, Lillian (2025). Exploring acorn shells: Phenolic composition and bioactive potential for sustainable valorization. Industrial Crops and Products. ISSN 0926-6690. 226, p. 1-7
dc.identifier.doi10.1016/j.indcrop.2025.120686
dc.identifier.issn0926-6690
dc.identifier.urihttp://hdl.handle.net/10198/34377
dc.language.isoeng
dc.peerreviewedyes
dc.publisherElsevier
dc.relationMountain Research Center
dc.relationMountain Research Center
dc.relationAssociate Laboratory for Sustainability and Tecnology in Mountain Regions
dc.relationPRIMA/0005/2022
dc.relation.ispartofIndustrial Crops and Products
dc.rights.urihttp://creativecommons.org/licenses/by/4.0/
dc.subjectQuercus species
dc.subjectAcorn shell
dc.subjectFunctional compounds
dc.subjectReactive oxygen species
dc.subjectCell-based assays
dc.titleExploring acorn shells: Phenolic composition and bioactive potential for sustainable valorizationeng
dc.typejournal article
dspace.entity.typePublication
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oaire.awardNumberLA/P/0007/2020
oaire.awardNumberPRIMA/0005/2022
oaire.awardTitleMountain Research Center
oaire.awardTitleMountain Research Center
oaire.awardTitleAssociate Laboratory for Sustainability and Tecnology in Mountain Regions
oaire.awardTitlePRIMA/0005/2022
oaire.awardURIinfo:eu-repo/grantAgreement/FCT/6817 - DCRRNI ID/UIDB%2F00690%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.awardURIinfo:eu-repo/grantAgreement/FCT/PRIMA Section 2 - 2022/PRIMA%2F0005%2F2022/PT
oaire.citation.endPage7
oaire.citation.startPage1
oaire.citation.titleIndustrial Crops and Products
oaire.citation.volume226
oaire.fundingStream6817 - DCRRNI ID
oaire.fundingStream6817 - DCRRNI ID
oaire.fundingStream6817 - DCRRNI ID
oaire.fundingStreamPRIMA Section 2 - 2022
oaire.versionhttp://purl.org/coar/version/c_970fb48d4fbd8a85
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