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Pretreatment and fractionation of wheat straw using various ionic liquids

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dc.contributor.authorLopes, André
dc.contributor.authorJoão, Karen
dc.contributor.authorBogel-Lukasik, Ewa
dc.contributor.authorRoseiro, Luisa B.
dc.contributor.authorLukasik, Rafal M.
dc.date.accessioned2014-03-24T11:24:15Z
dc.date.available2014-03-24T11:24:15Z
dc.date.issued2013
dc.description.abstractPretreatment of lignocellulosic biomass with ionic liquids (ILs) is a promising and challenging process for an alternative method of biomass processing. The present work emphasizes the examination of wheat straw pretreatment using ILs, namely, 1-butyl-3-methylimidazolium hydrogensulfate ([bmim][HSO4]), 1-butyl-3-methylimidazolium thiocyanate ([bmim]-[SCN]), and 1-butyl-3-methylimidazolium dicyanamide ([bmim][N(CN)2]). Only [bmim][HSO4] was found to achieve a macroscopic complete dissolution of wheat straw during pretreatment. The fractionation process demonstrated to be dependent on the IL used. Using [bmim][SCN], a high-purity lignin-rich material was obtained. In contrast, [bmim][N(CN)2] was a good solvent to produce high-purity carbohydrate-rich fractions. When [bmim][HSO4] was used, a different behavior was observed, exhibiting similarities to an acid hydrolysis pretreatment, and no hemicellulose-rich material was recovered during fractionation. A capillary electrophoresis (CE) technique allowed for a better understanding of this phenomenon. Hydrolysis of carbohydrates was confirmed, although an extended degradation of monosaccharides to furfural and hydroxymethylfurfural (HMF) was observed.por
dc.identifier.citationLopes, André da C.; João, Karen G.; Bogel-Lukasik, E.; Roseiro, Luísa B.; Bogel-Lukasik, R. Pretreatment and fractionation of wheat straw using various ionic liquids. In: Journal of Agricultural and Food Chemistry, 2013, Vol. 61, nº 33, p. 7874–7882por
dc.identifier.issn0021-8561
dc.identifier.urihttp://hdl.handle.net/10400.9/2336
dc.language.isoengpor
dc.publisherACS Publicationspor
dc.relation.publisherversionhttp://dx.doi.org/10.1021/jf401980ppor
dc.subjectGreen solventspor
dc.subjectFractionationpor
dc.subjectCellulosepor
dc.subjectHemicellulosepor
dc.subjectLigninpor
dc.subjectCapillary Electrophoresispor
dc.titlePretreatment and fractionation of wheat straw using various ionic liquidspor
dc.typejournal article
dspace.entity.typePublication
oaire.citation.endPage7882por
oaire.citation.startPage7874por
oaire.citation.titleJournal of Agricultural and Food Chemistrypor
oaire.citation.volume61por
person.familyNamede Bivar Weinholtz Roseiro
person.familyNameLukasik
person.givenNameMaria Luisa
person.givenNameRafal
person.identifier.ciencia-idF71F-0B5C-AE27
person.identifier.orcid0000-0003-1562-6658
person.identifier.orcid0000-0002-7805-5744
person.identifier.ridL-1101-2014
person.identifier.ridA-6315-2011
person.identifier.scopus-author-id6602749883
person.identifier.scopus-author-id6506737268
rcaap.rightsopenAccesspor
rcaap.typearticlepor
relation.isAuthorOfPublicationc05cc7f2-d621-4179-a345-39b77675cc52
relation.isAuthorOfPublication6a7fdbd9-7961-407e-88d0-15d175ea711d
relation.isAuthorOfPublication.latestForDiscovery6a7fdbd9-7961-407e-88d0-15d175ea711d

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