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Strategies for the purification of hydroxytyrosol-rich extracts obtained from exhausted olive pomace

2023-07Journal article Open access
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dc.contributor.authorGómez Cruz, Irene
dc.contributor.authorContreras, Maria del Mar
dc.contributor.authorRomero, Inmaculada
dc.contributor.authorRibeiro, Belina
dc.contributor.authorRoseiro, Luisa B.
dc.contributor.authorDuarte, Luís C.
dc.contributor.authorCarvalheiro, Florbela
dc.contributor.authorCastro, Eulogio
dc.date.accessioned2024-01-31T12:34:28Z
dc.date.available2024-01-31T12:34:28Z
dc.date.issued2023-07
dc.description.abstractABSTRACT: Exhausted olive pomace (EOP) is a residual biomass from which hydroxytyrosol can be recovered. This compound has applications in the food/pharma sectors, but its extraction yields complex extracts that require further purification for some applications. This work explores purification strategies based on membrane technology, liquid–liquid extraction (LLE), and solid-phase extraction with adsorbents and resins. The hydroxytyrosol content, phenolic profile, antioxidant activity, and inhibition of α-glucosidase and α-amylase were monitored. Hydroxytyrosol stood out in all purified extracts. The best hydroxytyrosol recovery (88.8%) was achieved using LLE with ethyl acetate as the extractant, while the purest extracts in phenolic compounds, including hydroxytyrosol, were obtained using the latter solvent and C18 (529 mg/g), DSC-8 (873 mg/g), and Purosorb PAD910 (523 mg/g). Conversely, mannitol and glucose, at high concentrations in the extract, were selectively retained in the aqueous phases. The developed strategies are discussed regarding their suitability to provide hydroxytyrosol-concentrated extracts, up to 291 mg/g, with antioxidant and antidiabetic functionalities.pt_PT
dc.description.versioninfo:eu-repo/semantics/publishedVersionpt_PT
dc.identifier.citationGómez-Cruz, Irene... et.al - Strategies for the purification of hydroxytyrosol-rich extracts obtained from exhausted olive pomace. In: Separation and Purification Technology, 2023, vol. 325, article nº 124664pt_PT
dc.identifier.doi10.1016/j.seppur.2023.124664pt_PT
dc.identifier.issn1383-5866
dc.identifier.urihttp://hdl.handle.net/10400.9/4240
dc.language.isoengpt_PT
dc.peerreviewedyespt_PT
dc.publisherElsevierpt_PT
dc.relationBiomass and Bioenergy Research Infrastructure
dc.relation.publisherversionhttps://doi.org/10.1016/j.seppur.2023.124664pt_PT
dc.rights.urihttp://creativecommons.org/licenses/by-nc-nd/4.0/pt_PT
dc.subjectAdsorptionpt_PT
dc.subjectAntidiabeticpt_PT
dc.subjectHydroxytyrosolpt_PT
dc.subjectLiquid-liquid extractionpt_PT
dc.subjectMembrane purificationpt_PT
dc.titleStrategies for the purification of hydroxytyrosol-rich extracts obtained from exhausted olive pomacept_PT
dc.typejournal article
dspace.entity.typePublication
oaire.awardTitleBiomass and Bioenergy Research Infrastructure
oaire.awardURIinfo:eu-repo/grantAgreement/FCT/9444 - RNIIIE/PINFRA%2F22059%2F2016/PT
oaire.citation.titleSeparation and Purification Technologypt_PT
oaire.citation.volume325pt_PT
oaire.fundingStream9444 - RNIIIE
person.familyNameGómez Cruz
person.familyNameCONTRERAS
person.familyNameROMERO
person.familyNameRibeiro
person.familyNamede Bivar Weinholtz Roseiro
person.familyNameDuarte
person.familyNameCarvalheiro
person.familyNameCastro Galiano
person.givenNameIrene
person.givenNameMARIA DEL MAR
person.givenNameINMACULADA
person.givenNameBelina
person.givenNameMaria Luisa
person.givenNameLuís
person.givenNameFlorbela
person.givenNameEulogio
person.identifier362150
person.identifier59799
person.identifier.ciencia-idDD16-2AE0-CF7C
person.identifier.ciencia-idF71F-0B5C-AE27
person.identifier.ciencia-id7F15-9BC9-79AA
person.identifier.ciencia-id4016-9476-B97D
person.identifier.orcid0000-0002-1856-001X
person.identifier.orcid0000-0002-3407-0088
person.identifier.orcid0000-0002-4152-8034
person.identifier.orcid0000-0001-5145-2486
person.identifier.orcid0000-0003-1562-6658
person.identifier.orcid0000-0001-5820-3669
person.identifier.orcid0000-0002-0270-4832
person.identifier.orcid0000-0003-1719-6049
person.identifier.ridC-2181-2012
person.identifier.ridL-1101-2014
person.identifier.ridC-1430-2008
person.identifier.ridL-1860-2014
person.identifier.ridE-5910-2011
person.identifier.scopus-author-id26653952000
person.identifier.scopus-author-id25032007200
person.identifier.scopus-author-id6602749883
person.identifier.scopus-author-id56649966600
person.identifier.scopus-author-id6603247136
person.identifier.scopus-author-id7102441948
project.funder.identifierhttp://doi.org/10.13039/501100001871
project.funder.nameFundação para a Ciência e a Tecnologia
rcaap.rightsopenAccesspt_PT
rcaap.typearticlept_PT
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