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Acacia wood fractionation using deep eutectic solvents: extraction, recovery, and characterization of the different fractions

2022Journal article Open access
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dc.contributor.authorMagalhães, Solange
dc.contributor.authorMoreira, Adriana
dc.contributor.authorAlmeida, Ricardo
dc.contributor.authorCruz, Pedro Fernandes
dc.contributor.authorAlves, Luís
dc.contributor.authorCosta, Carolina
dc.contributor.authorMendes, Cátia
dc.contributor.authorMedronho, Bruno
dc.contributor.authorRomano, Anabela
dc.contributor.authorCarvalho, Maria da Graça
dc.contributor.authorGamelas, José A. F.
dc.contributor.authorRasteiro, Maria da Graça
dc.date.accessioned2022-12-12T11:17:42Z
dc.date.available2022-12-12T11:17:42Z
dc.date.issued2022
dc.description.abstractThe selective extraction and recovery of different lignocellulosic molecules of interest from forestry residues is increasing every day not only to satisfy the needs of driving a society toward more sustainable approaches and materials (rethinking waste as a valuable resource) but also because lignocellulosic molecules have several applications. For this purpose, the development of new sustainable and ecologically benign extraction approaches has grown significantly. Deep eutectic solvents (DESs) appear as a promising alternative for the processing and manipulation of biomass. In the present study, a DES formed using choline chloride and levulinic acid (ChCl:LA) was studied to fractionate lignocellulosic residues of acacia wood (Acacia dealbata Link), an invasive species in Portugal. Different parameters, such as temperature and extraction time, were optimized to enhance the yield and purity of recovered cellulose and lignin fractions. DESs containing LA were found to be promising solvent systems, as the hydrogen bond donor was considered relevant in relation to lignin extraction and cellulose concentration. On the other hand, the increase in temperature and extraction time increases the amount of extracted material from biomass but affects the purity of lignin. The most promising DES system, ChCELA in a ratio of 1:3, was found to not significantly depolymerize the extracted lignin, which presented a similar molecular weight to a la-aft lignin. Additionally, the P-31 NMR results revealed that the extracted lignin has a high content of phenolic OH groups, which favor its reactivity. A mixture of ChCl:LA may be considered a fully renewable solvent, and the formed DES presents good potential to fractionate wood residues.pt_PT
dc.description.versioninfo:eu-repo/semantics/publishedVersionpt_PT
dc.identifier.doi10.1021/acsomega.1c07380pt_PT
dc.identifier.issn2470-1343
dc.identifier.urihttp://hdl.handle.net/10400.1/18619
dc.language.isoengpt_PT
dc.peerreviewedyespt_PT
dc.publisherACS Publicationspt_PT
dc.relationMaking water cleaner: Development of novel lignocellulose-based systems for the removal of microplastics from aqueous media
dc.relationValorização de resíduos lenhocelulósicos de origem agro-florestal: produção de etanol em processos integrados
dc.relationMediterranean Institute for Agriculture, Environment and Development
dc.rights.urihttp://creativecommons.org/licenses/by-nc-nd/4.0/pt_PT
dc.titleAcacia wood fractionation using deep eutectic solvents: extraction, recovery, and characterization of the different fractionspt_PT
dc.typejournal article
dspace.entity.typePublication
oaire.awardTitleMaking water cleaner: Development of novel lignocellulose-based systems for the removal of microplastics from aqueous media
oaire.awardTitleValorização de resíduos lenhocelulósicos de origem agro-florestal: produção de etanol em processos integrados
oaire.awardTitleMediterranean Institute for Agriculture, Environment and Development
oaire.awardURIinfo:eu-repo/grantAgreement/FCT//2020.07638.BD/PT
oaire.awardURIinfo:eu-repo/grantAgreement/FCT/POR_CENTRO/SFRH%2FBD%2F139908%2F2018/PT
oaire.awardURIinfo:eu-repo/grantAgreement/FCT/9471 - RIDTI/PTDC%2FASP-SIL%2F30619%2F2017/PT
oaire.awardURIinfo:eu-repo/grantAgreement/FCT/6817 - DCRRNI ID/UIDB%2F05183%2F2020/PT
oaire.citation.endPage26014pt_PT
oaire.citation.issue30pt_PT
oaire.citation.startPage26005pt_PT
oaire.citation.titleACS Omegapt_PT
oaire.citation.volume7pt_PT
oaire.fundingStreamPOR_CENTRO
oaire.fundingStream9471 - RIDTI
oaire.fundingStream6817 - DCRRNI ID
person.familyNameMedronho
person.familyNameRomano
person.givenNameBruno
person.givenNameAnabela
person.identifier.ciencia-id6918-9AB3-8D22
person.identifier.ciencia-id8A18-7E9A-3B0E
person.identifier.orcid0000-0003-0972-1739
person.identifier.orcid0000-0002-7204-7428
person.identifier.ridP-5927-2014
person.identifier.scopus-author-id9940656700
person.identifier.scopus-author-id56249997600
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.rightsopenAccesspt_PT
rcaap.typearticlept_PT
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