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Enhancing lignin dissolution and extraction: the effect of surfactants

2021Journal article Open access
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dc.contributor.authorMelro, Elodie
dc.contributor.authorValente, Artur J. M.
dc.contributor.authorAntunes, Filipe E.
dc.contributor.authorRomano, Anabela
dc.contributor.authorMedronho, Bruno
dc.date.accessioned2021-04-09T08:20:29Z
dc.date.available2021-04-09T08:20:29Z
dc.date.issued2021
dc.description.abstractThe dissolution and extraction of lignin from biomass represents a great challenge due to the complex structure of this natural phenolic biopolymer. In this work, several surfactants (i.e., non-ionic, anionic, and cationic) were used as additives to enhance the dissolution efficiency of model lignin (kraft) and to boost lignin extraction from pine sawdust residues. To the best of our knowledge, cationic surfactants have never been systematically used for lignin dissolution. It was found that ca. 20 wt.% of kraft lignin is completely solubilized using 1 mol L-1 octyltrimethylammonium bromide aqueous solution. A remarkable dissolution efficiency was also obtained using 0.5 mol L-1 polysorbate 20. Furthermore, all surfactants used increased the lignin extraction with formic acid, even at low concentrations, such as 0.01 and 0.1 mol L-1. Higher concentrations of cationic surfactants improve the extraction yield but the purity of extracted lignin decreases.pt_PT
dc.description.sponsorshipFCT: UID/QUI/00313/2020, PTDC/AGR-TEC/4814/2014, PTDC/ASP-SIL/30619/2017, UIDB/05183/2020, CEECIND/01014/2018, SFRH/BD/132835/2017, COMPETEpt_PT
dc.description.versioninfo:eu-repo/semantics/publishedVersionpt_PT
dc.identifier.doi10.3390/polym13050714pt_PT
dc.identifier.issn2073-4360
dc.identifier.urihttp://hdl.handle.net/10400.1/15354
dc.language.isoengpt_PT
dc.peerreviewedyespt_PT
dc.publisherMDPIpt_PT
dc.rights.urihttp://creativecommons.org/licenses/by/4.0/pt_PT
dc.subjectDissolutionpt_PT
dc.subjectSurfactantspt_PT
dc.subjectExtractionpt_PT
dc.subjectMaritime pinept_PT
dc.subjectLigninpt_PT
dc.subjectLignocellulosic wastept_PT
dc.titleEnhancing lignin dissolution and extraction: the effect of surfactantspt_PT
dc.typejournal article
dspace.entity.typePublication
oaire.citation.issue5pt_PT
oaire.citation.startPage714pt_PT
oaire.citation.titlePolymerspt_PT
oaire.citation.volume13pt_PT
person.familyNameRomano
person.familyNameMedronho
person.givenNameAnabela
person.givenNameBruno
person.identifier.ciencia-id8A18-7E9A-3B0E
person.identifier.ciencia-id6918-9AB3-8D22
person.identifier.orcid0000-0002-7204-7428
person.identifier.orcid0000-0003-0972-1739
person.identifier.ridP-5927-2014
person.identifier.scopus-author-id56249997600
person.identifier.scopus-author-id9940656700
rcaap.rightsopenAccesspt_PT
rcaap.typearticlept_PT
relation.isAuthorOfPublicatione3343b60-17d3-4f5e-a2bf-06f26da69206
relation.isAuthorOfPublication4c03571a-93da-4504-8acf-c74326449852
relation.isAuthorOfPublication.latestForDiscovery4c03571a-93da-4504-8acf-c74326449852

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