Publication
Hybrid cellulose-poly(4-vinylpyridine) adsorbents produced via ATRP and their application to target polyphenols in winemaking, olive oil production and almond processing residues
| dc.contributor.author | Gomes, Catarina | |
| dc.contributor.author | Dias, Rolando | |
| dc.contributor.author | Costa, Mário Rui | |
| dc.date.accessioned | 2018-02-19T10:00:00Z | |
| dc.date.accessioned | 2021-11-23T11:15:45Z | |
| dc.date.available | 2018-01-19T10:00:00Z | |
| dc.date.available | 2021-11-23T11:15:45Z | |
| dc.date.issued | 2021 | |
| dc.description.abstract | Hybrid cellulose-poly(4-vinylpyridine) particles (MCC-P(4VP)) were synthesized via ATRP grafting and used as adsorbents to target polyphenols in residues derived from winemaking, olive oil production and almond processing. These hybrid particles preserve good conditions to be used in continuous sorption/desorption processes and were assessed for the retention of polyphenols in solvent mixtures ranging from 0 to 100% water content. Other seven adsorbents were used in these assays, including three commercial resins and further materials synthesized in this research with 4VP. We show that the 4VP based adsorbents present a much higher average polyphenol retention in a broad range of working conditions, namely concerning the water content of the extract. This behavior stems from the strong binding capacity of the pyridyl functional group towards many polyphenols and excels with MCC-P(4VP) adsorbents when the hydrophobic interactions play a minor role. MCC-P(4VP) adsorbents were also used for purification and fractionation of polyphenols using simple sorption/desorption steps. A fraction enriched with the malvidin-3-O-glucoside anthocyanin was obtained from grape pomace. Fractions with high content of isorhamnetin-3-O-rutinoside were isolated from almond. Fractions enriched in secoiridoids and flavonoids were produced from olive mill wastewater while many phenolic alcohols and acids were removed. These results show the potential of the MCC-P(4VP) adsorbents to improve downstream processing of polyphenols and increase the biorefining efficiency, namely through the direct handling of organic extracts at high polyphenol concentration. This research also has disclosed the formation of a polymer population deviating from the expected homogeneous process in ATRP grafting. The partition of ATRP reactants between two regions in the homogeneous phase could be a source of some potentially interesting issues relevant to monomers presenting strong H-bond capability, such as 4VP. Thus, many future developments are possible for the designing of the functional materials here addressed, including the introduction of molecular recognition features. | en_EN |
| dc.description.sponsorship | Catarina Gomes and Rolando Dias are grateful to the Foundation for Science and Technology (FCT, Portugal) for financial support by national funds FCT/MCTES to CIMO (UIDB/00690/2020). We acknowledge to Rute Gaspar (Torre de Moncorvo) the donation of almond fruits for this research. The contribution of the Chemical Engineering master students of IPB Cristina Nogueira and Cl´audia Martins is also acknowledged. Mário Rui Costa also acknowledges financial support by FCT through Base Funding - UIDB/50020/2020 of the Associate Laboratory LSRELCM - funded by national funds through FCT/MCTES (PIDDAC). We also acknowledge the contribution of the Professor Agostinho Almeida group with the bromine determinations by ICP-MS at LAQV/REQUIMTE–FFUP. This article is also a result of the project “BacchusTech - Integrated Approach for the Valorisation of Winemaking Residues” (POCI-01-0247- FEDER-069583), supported by the Competitiveness and Internationalization Operational Programme (COMPETE 2020), under the PORTUGAL 2020 Partnership Agreement, through the European Regional Development Fund (ERDF). All the authors certify that they have participated sufficiently in the work to take public responsibility for the content, including participation in the concept, design, analysis, writing, or revision of the manuscript. | |
| dc.description.version | info:eu-repo/semantics/publishedVersion | en_EN |
| dc.identifier.citation | Gomes, Catarina; Dias, Rolando; Costa, Mário Rui (2021). Hybrid cellulose-poly(4-vinylpyridine) adsorbents produced via ATRP and their application to target polyphenols in winemaking, olive oil production and almond processing residues. Reactive and Functional Polymers. ISSN 1381-5148. 164, p. 1-14 | en_EN |
| dc.identifier.doi | 10.1016/j.reactfunctpolym.2021.104930 | en_EN |
| dc.identifier.issn | 1381-5148 | |
| dc.identifier.uri | http://hdl.handle.net/10198/24320 | |
| dc.language.iso | eng | |
| dc.peerreviewed | yes | en_EN |
| dc.relation | Mountain Research Center | |
| dc.relation | Laboratory of Separation and Reaction Engineering - Laboratory of Catalysis and Materials | |
| dc.subject | Adsorbents | en_EN |
| dc.subject | ATRP grafting | en_EN |
| dc.subject | Cellulose-synthetic | en_EN |
| dc.subject | Downstream processing | en_EN |
| dc.subject | Hybrid materials | en_EN |
| dc.title | Hybrid cellulose-poly(4-vinylpyridine) adsorbents produced via ATRP and their application to target polyphenols in winemaking, olive oil production and almond processing residues | en_EN |
| dc.type | journal article | |
| dspace.entity.type | Publication | |
| oaire.awardTitle | Mountain Research Center | |
| oaire.awardTitle | Laboratory of Separation and Reaction Engineering - Laboratory of Catalysis and Materials | |
| oaire.awardURI | info:eu-repo/grantAgreement/FCT/6817 - DCRRNI ID/UIDB%2F00690%2F2020/PT | |
| oaire.awardURI | info:eu-repo/grantAgreement/FCT/6817 - DCRRNI ID/UIDB%2F50020%2F2020/PT | |
| oaire.fundingStream | 6817 - DCRRNI ID | |
| oaire.fundingStream | 6817 - DCRRNI ID | |
| person.familyName | Gomes | |
| person.familyName | Dias | |
| person.givenName | Catarina | |
| person.givenName | Rolando | |
| person.identifier.ciencia-id | 2B12-75A1-B8FB | |
| person.identifier.ciencia-id | 8417-4D84-973B | |
| person.identifier.orcid | 0000-0003-3396-3615 | |
| person.identifier.orcid | 0000-0001-7369-382X | |
| person.identifier.rid | M-8552-2013 | |
| person.identifier.scopus-author-id | 57190981477 | |
| person.identifier.scopus-author-id | 7102885104 | |
| project.funder.identifier | http://doi.org/10.13039/501100001871 | |
| project.funder.identifier | http://doi.org/10.13039/501100001871 | |
| project.funder.name | Fundação para a Ciência e a Tecnologia | |
| project.funder.name | Fundação para a Ciência e a Tecnologia | |
| rcaap.rights | openAccess | en_EN |
| rcaap.type | article | en_EN |
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