Bio-oil fractionation according to polarity and molecular size: characterization and application as antioxidants

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dc.contributor.authorFonts, Isabel
dc.contributor.authorLázaro, Cristina
dc.contributor.authorCornejo Ibergallartu, Alfonso
dc.contributor.authorSánchez, José Luis
dc.contributor.authorAfailal, Zainab
dc.contributor.authorGil-Lalaguna, Noemí
dc.contributor.authorArauzo, Jesús María
dc.contributor.departmentCienciases_ES
dc.contributor.departmentZientziakeu
dc.contributor.departmentInstitute for Advanced Materials and Mathematics - INAMAT2en
dc.contributor.funderGobierno de Navarra / Nafarroako Gobernua
dc.date.accessioned2025-03-11T12:19:10Z
dc.date.available2025-03-11T12:19:10Z
dc.date.issued2024-12-21
dc.date.updated2025-03-11T12:00:52Z
dc.description.abstractBio-oil obtained from biomass pyrolysis has great potential for several applications after being upgraded and refined. This study established a method for separating bio-oil into different fractions based on polarity and molecular size to extract phenolic and polyphenolic compounds with antioxidant properties. The fractions were analyzed using various spectroscopic and chromatographic techniques, such as GC/MS, FTIR, UV-vis, SEC, DOSY-NMR, 13C-NMR, and 31P-NMR. The antioxidant properties of these fractions were tested by examining their ability to improve the oxidative stability of biodiesel. The results strongly connected the bio-oil's chemical functionalities and antioxidant power. During solvent fractionation, dichloromethane could extract phenolic structures, which were subsequently size-fractionated. The subfractions with lower molecular weight (in the order of monomers and dimers) outperformed the antioxidant potential of the crude bio-oil. Heavier subfractions from dichloromethane extraction did not show good antioxidant abilities, which was related to the low hydroxy group content. After solvent extraction, phenolic oligomers remained in the water-insoluble/dichloromethane-insoluble fraction, which showed good antioxidant potential despite its low solubility in biodiesel.en
dc.description.sponsorshipThe authors express gratitude to Agencia Estatal de Investigación in Spain (Project PID2020-114936RB-I00), Aragón Government (Research Group ref T22_23R), and Navarra Government (Project 'PC177-178 Reducenano 2.0') for providing frame support for this work. I.F. acknowledges Fondo Social Europeo, Agencia Estatal de Investigación and Universidad de Zaragoza because of the postdoctoral fellowship (RYC2020-030593-I).
dc.format.mimetypeapplication/pdfen
dc.format.mimetypeapplication/zipen
dc.identifier.citationFonts, I., Lázaro, C., Cornejo, A., Sánchez, J. L., Afailal, Z., Gil-Lalaguna, N., Arauzo, J. M. (2024). Bio-oil fractionation according to polarity and molecular size: characterization and application as antioxidants. Energy and Fuels, 38(19), 18688-18704. https://doi.org/10.1021/acs.energyfuels.4c02641.
dc.identifier.doi10.1021/acs.energyfuels.4c02641
dc.identifier.issn0887-0624
dc.identifier.urihttps://academica-e.unavarra.es/handle/2454/53711
dc.language.isoeng
dc.publisherAmerican Chemical Society
dc.relation.ispartofEnergy and Fuels (2024), vol. 38, núm. 19
dc.relation.projectIDinfo:eu-repo/grantAgreement/AEI/Plan Estatal de Investigación Científica y Técnica y de Innovación 2017-2020/PID2020-114936RB-I00/ES/
dc.relation.projectIDinfo:eu-repo/grantAgreement/Gobierno de Navarra//PC177-178/
dc.relation.publisherversionhttps://doi.org/10.1021/acs.energyfuels.4c02641
dc.rights© 2024 The Authors. This article is licensed under Creative Commons BY 4.0.
dc.rights.accessRightsinfo:eu-repo/semantics/openAccess
dc.rights.urihttps://creativecommons.org/licenses/by/4.0/
dc.subjectAntioxidantsen
dc.subjectAromatic compoundsen
dc.subjectBiofuelsen
dc.subjectFractionationen
dc.subjectHydrocarbonsen
dc.titleBio-oil fractionation according to polarity and molecular size: characterization and application as antioxidantsen
dc.typeinfo:eu-repo/semantics/article
dc.type.versioninfo:eu-repo/semantics/publishedVersion
dspace.entity.typePublication
relation.isAuthorOfPublicationeabef884-715a-460f-b2a1-e62568297b4a
relation.isAuthorOfPublication.latestForDiscoveryeabef884-715a-460f-b2a1-e62568297b4a

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