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Levulinic acid: a novel sustainable solvent for lignin dissolution

2020-12Journal article Open access
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dc.contributor.authorMelro, Elodie
dc.contributor.authorFilipe, Alexandra
dc.contributor.authorValente, Artur J. M.
dc.contributor.authorAntunes, Filipe E.
dc.contributor.authorRomano, Anabela
dc.contributor.authorNorgren, Magnus
dc.contributor.authorMedronho, Bruno
dc.date.accessioned2021-06-18T16:25:44Z
dc.date.available2021-06-18T16:25:44Z
dc.date.issued2020-12
dc.description.abstractLignin is a natural, renewable resource with potential to be used in biomaterials. Due to its complex structure, its efficient dissolution is still challenging, which hinders its applicability at large scale. This challenge become harder considering the current need of sustainable and environmentally friendly solvents. To the best of our knowledge, this work reports for the first time the dissolution of kraft lignin in levulinic acid, a "green" solvent, and compares its efficiency with common carboxylic acids and sulfuric acid. It has been found that levulinic acid has a high capacity to dissolve kraft lignin at room temperature (40 wt% solubility), and it efficiency is not compromised when diluting the acid with water (up to 40 wt% water content). the Kamlet-Taft pi* parameter of the different acidic solvents was estimated and found to correlate well with their solubility performance. Lignins previously dissolved in levulinic and formic acids were selected to be regenerated and minor differences were found in thermal stability and morphological structure, when compared to native kraft lignin. However, an increase in the content of the carbonyl groups in the regenerated lignin material was observed. (C) 2020 Elsevier B.V. All rights reserved.
dc.description.sponsorshipPortuguese Foundation for Science and Technology (FCT) [PTDC/AGR-TEC/4814/2014, PTDC/ASP-SIL/30619/2017, UIDB/05183/2020, CEECIND/01014/2018]
dc.description.sponsorshipFCTPortuguese Foundation for Science and TechnologyEuropean Commission [SFRH/BD/132835/2017, UID/QUI/00313/2020]
dc.description.sponsorshipFCT through COMPETE
dc.description.versioninfo:eu-repo/semantics/publishedVersion
dc.identifier.doi10.1016/j.ijbiomac.2020.08.128
dc.identifier.issn0141-8130
dc.identifier.urihttp://hdl.handle.net/10400.1/15657
dc.language.isoeng
dc.peerreviewedyes
dc.publisherElsevier
dc.rights.urihttp://creativecommons.org/licenses/by-nc-nd/4.0/
dc.subjectDissolution
dc.subjectKraft lignin
dc.subjectLevulinic acid
dc.subject.otherBiochemistry & Molecular Biology
dc.subject.otherChemistry
dc.subject.otherPolymer Science
dc.titleLevulinic acid: a novel sustainable solvent for lignin dissolution
dc.typejournal article
dspace.entity.typePublication
oaire.awardURIinfo:eu-repo/grantAgreement/FCT/3599-PPCDT/143448/PT
oaire.awardURIinfo:eu-repo/grantAgreement/FCT/9471 - RIDTI/151812/PT
oaire.awardURIinfo:eu-repo/grantAgreement/FCT/6817 - DCRRNI ID/157632/PT
oaire.awardURIinfo:eu-repo/grantAgreement/FCT/POR_CENTRO/68874/PT
oaire.citation.endPage3461
oaire.citation.startPage3454
oaire.citation.titleInternational Journal of Biological Macromolecules
oaire.citation.volume164
oaire.fundingStream3599-PPCDT
oaire.fundingStream9471 - RIDTI
oaire.fundingStream6817 - DCRRNI ID
oaire.fundingStreamPOR_CENTRO
person.familyNameRomano
person.familyNameNorgren
person.familyNameMedronho
person.givenNameAnabela
person.givenNameMagnus
person.givenNameBruno
person.identifier.ciencia-id8A18-7E9A-3B0E
person.identifier.ciencia-id0315-788A-452C
person.identifier.ciencia-id6918-9AB3-8D22
person.identifier.orcid0000-0002-7204-7428
person.identifier.orcid0000-0003-3407-7973
person.identifier.orcid0000-0003-0972-1739
person.identifier.ridP-5927-2014
person.identifier.scopus-author-id56249997600
person.identifier.scopus-author-id9940656700
project.funder.identifierhttp://doi.org/10.13039/501100001871
project.funder.identifierhttp://doi.org/10.13039/501100001871
project.funder.identifierhttp://doi.org/10.13039/501100001871
project.funder.identifierhttp://doi.org/10.13039/501100001871
project.funder.nameFundação para a Ciência e a Tecnologia
project.funder.nameFundação para a Ciência e a Tecnologia
project.funder.nameFundação para a Ciência e a Tecnologia
project.funder.nameFundação para a Ciência e a Tecnologia
rcaap.rightsopenAccess
rcaap.typearticle
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