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Surface molecularly imprinted cellulose-synthetic hybrid particles prepared via atrp for enrichment of flavonoids in olive leaf

2023Journal article Open access
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dc.contributor.authorGomes, Catarina
dc.contributor.authorDias, Rolando
dc.contributor.authorCosta, Mário Rui
dc.date.accessioned2023-03-06T12:15:50Z
dc.date.available2023-03-06T12:15:50Z
dc.date.issued2023
dc.description.abstractSurface molecularly imprinted cellulose-synthetic hybrid particles are prepared via atom transfer radical polymerization (ATRP). The two-step process involves the immobilization of alpha-bromoisobutyryl bromide in the pristine microcrystalline cellulose, to generate ATRP macroinitiator particles, and then the creation of a crosslinked-imprinted shell in the particles surface considering ATRP of 4-vinylpyridine (4VP) and ethylene glycoldimethacrylate (EGDMA) with quercetin as imprinting template. Among the polymerization recipes tested, a system with ethanol as solvent preserves a final size of the hybrid particles suitable for application as adsorbent, while also incorporating the 4VP/EGDMA co-monomers. Testing of imprinted/non-imprinted particles for sorption/desorption of standard phenolic compounds shows the modification of the surface of the pristine cellulose and also the achievement of molecular imprinting (imprinting factor approximate to 2.6). Particles are used for the enrichment of flavonoids in olive leaf extracts and the special features of the developed molecularly imprinted adsorbents are again highlighted with this complex mixture of phenolic compounds. It is shown that production of fractions rich in luteolin-7-O-glucoside, apigenin-7-O-glucoside, or quercetin, among other flavonoids is possible (estimated enrichment factors up to 4). These results point up for the usefulness of natural-synthetic materials with processes to get high-added value compounds in the framework of circular bio-economy.pt_PT
dc.description.versioninfo:eu-repo/semantics/publishedVersionpt_PT
dc.identifier.citationGomes, Catarina; Dias, Rolando; Costa, Mário Rui (2023). Surface molecularly imprinted cellulose-synthetic hybrid particles prepared via atrp for enrichment of flavonoids in olive leaf. Macromolecular Reaction Engineering. eISSN 1862-8338. 17:3, p. 1-12pt_PT
dc.identifier.doi10.1002/mren.202300011
dc.identifier.issn1862-832X
dc.identifier.urihttp://hdl.handle.net/10198/27477
dc.language.isoengpt_PT
dc.peerreviewedyespt_PT
dc.publisherWileypt_PT
dc.rights.urihttp://creativecommons.org/licenses/by/4.0/pt_PT
dc.subjectAdsorbentspt_PT
dc.subjectAtom transfer radical polymerizationpt_PT
dc.subjectCellulose
dc.subjectNatural-synthetic hybrid particles
dc.subjectOlive leaf
dc.subjectSurface molecular imprinting
dc.subjectFlavonoids
dc.titleSurface molecularly imprinted cellulose-synthetic hybrid particles prepared via atrp for enrichment of flavonoids in olive leafpt_PT
dc.typejournal article
dspace.entity.typePublication
oaire.citation.titleMacromolecular Reaction Engineeringpt_PT
person.familyNameGomes
person.familyNameDias
person.givenNameCatarina
person.givenNameRolando
person.identifier.ciencia-id2B12-75A1-B8FB
person.identifier.ciencia-id8417-4D84-973B
person.identifier.orcid0000-0003-3396-3615
person.identifier.orcid0000-0001-7369-382X
person.identifier.ridM-8552-2013
person.identifier.scopus-author-id57190981477
person.identifier.scopus-author-id7102885104
rcaap.rightsopenAccesspt_PT
rcaap.typearticlept_PT
relation.isAuthorOfPublicationeeffa916-1197-416e-a4fd-22281823df55
relation.isAuthorOfPublicationd7109687-6adf-4268-a462-8d1a2e2c01cb
relation.isAuthorOfPublication.latestForDiscoveryeeffa916-1197-416e-a4fd-22281823df55

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