Structural characterization of sugarcane lignins extracted from different protic ionic liquid pretreatments

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dc.contributor.authorPin, Thaynara C.
dc.contributor.authorNascimento, Viviane M.
dc.contributor.authorCosta, Aline C.
dc.contributor.authorPu, Yunqiao
dc.contributor.authorRagauskas, Arthur J.
dc.contributor.authorRabelo, Sarita C. [UNESP]
dc.contributor.institutionUniversidade Estadual de Campinas (UNICAMP)
dc.contributor.institutionUniversity of Tennessee
dc.contributor.institutionBrazilian Center for Research in Energy and Materials (CNPEM)
dc.contributor.institutionOak Ridge National Laboratory (ORNL)
dc.contributor.institutionInstitute of Agriculture
dc.contributor.institutionUniversidade Estadual Paulista (Unesp)
dc.date.accessioned2020-12-12T01:34:40Z
dc.date.available2020-12-12T01:34:40Z
dc.date.issued2020-12-01
dc.description.abstractPrevious studies based on protic ionic liquids have shown them to be effective for extracting lignins from biomass. Moreover, ILs synthesized with amine cations can promote the insertion of nitrogen into lignin, favoring its valorization for industrial applications. In this study, lignins extracted from sugarcane bagasse by eight different PILs were analyzed. Several techniques of characterization were employed (2D HSQC NMR, 31P NMR, GPC, Py-GC/MS, TGA, FTIR, and elemental analysis), seeking a deeper understanding of lignin structure post-PILS treatment. In particular, lignin obtained with acetate and lactate anions with monoethanolamonium cations showed similar structural compositions. Lignins obtained from ethylenediamonium cation combined anions acetate and lactate exhibited relatively higher molecular weights compared to the other lignins studied. The elemental analysis of these lignins further revealed the presence of nitrogen in their structures, suggesting that amination occurred. In this work we used PILs not yet reported in the literature for this purpose, and consequently obtained lignins with specific structures. Overall, our results demonstrated that depending on the PILs used, lignins with distinct properties could be obtained which might be used for value-added applications. This work covered new advances in elucidation of lignin chemical structure and opened a new path for lignin valorization.en
dc.description.affiliationChemical Engineering Faculty University of Campinas (UNICAMP), Av. Albert Einstein
dc.description.affiliationDepartment of Chemical and Biomolecular Engineering University of Tennessee, Middle Dr
dc.description.affiliationBrazilian Biorenewables National Laboratory (LNBR) Brazilian Center for Research in Energy and Materials (CNPEM)
dc.description.affiliationBiosciences Division Joint Institute for Biological Sciences Oak Ridge National Laboratory (ORNL), Bethel Valley Rd. Oak Ridge
dc.description.affiliationCenter for Renewable Carbon Department of Forestry Wildlife and Fisheries University of Tennessee Institute of Agriculture, Morgan Cir Dr
dc.description.affiliationDepartment of Bioprocess and Biotechnology College of Agricultural Sciences São Paulo State University (UNESP), Av. Universitária
dc.description.affiliationUnespDepartment of Bioprocess and Biotechnology College of Agricultural Sciences São Paulo State University (UNESP), Av. Universitária
dc.description.sponsorshipCoordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES)
dc.description.sponsorshipConselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq)
dc.description.sponsorshipFundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP)
dc.description.sponsorshipIdCAPES: 001
dc.description.sponsorshipIdCNPq: 141393/2018-1
dc.description.sponsorshipIdFAPESP: 2015/20630-4
dc.description.sponsorshipIdCNPq: 204710/2018-9
dc.description.sponsorshipIdCAPES: 23038.007211/2012-93
dc.description.sponsorshipIdCNPq: 304944/2018-1
dc.description.sponsorshipIdCNPq: 405934/2018-1
dc.format.extent579-592
dc.identifierhttp://dx.doi.org/10.1016/j.renene.2020.07.078
dc.identifier.citationRenewable Energy, v. 161, p. 579-592.
dc.identifier.doi10.1016/j.renene.2020.07.078
dc.identifier.issn1879-0682
dc.identifier.issn0960-1481
dc.identifier.scopus2-s2.0-85089337948
dc.identifier.urihttp://hdl.handle.net/11449/199247
dc.language.isoeng
dc.relation.ispartofRenewable Energy
dc.sourceScopus
dc.subjectBiorefinery
dc.subjectChemical features
dc.subjectIonic liquid
dc.subjectLignin characterization
dc.subjectRadar classification
dc.subjectSugarcane bagasse
dc.titleStructural characterization of sugarcane lignins extracted from different protic ionic liquid pretreatmentsen
dc.typeArtigo

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