Fractionation of Lignocellulosic Biomass by Selective Precipitation from Ionic Liquid Dissolution

We propose the treatment of barley straw with 1-ethyl-3-methylimidazolium acetate [EMIMAcO] ionic liquids (ILs) and subsequent precipitation with antisolvent mixtures, thus allowing the separation of the sugar-rich fractions (cellulose and hemicellulose) from the lignin fraction. For this purpose, d...

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Detalles Bibliográficos
Autores: Lara-Serrano, Marta, Morales-delaRosa, Silvia, Campos Martín, José Miguel, García Fierro, José Luis
Tipo de recurso: artículo
Estado:Versión publicada
Fecha de publicación:2019
País:España
Institución:Consejo Superior de Investigaciones Científicas (CSIC)
Repositorio:DIGITAL.CSIC. Repositorio Institucional del CSIC
OAI Identifier:oai:digital.csic.es:10261/181552
Acceso en línea:http://hdl.handle.net/10261/181552
Access Level:acceso abierto
Palabra clave:Lignocellulosic biomass
Ionic liquid
Ethyl methyl imidazolium
Fractionation
Pretreatment
Barley straw
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spelling Fractionation of Lignocellulosic Biomass by Selective Precipitation from Ionic Liquid DissolutionLara-Serrano, MartaMorales-delaRosa, SilviaCampos Martín, José MiguelGarcía Fierro, José LuisLignocellulosic biomassIonic liquidEthyl methyl imidazoliumFractionationPretreatmentBarley strawWe propose the treatment of barley straw with 1-ethyl-3-methylimidazolium acetate [EMIMAcO] ionic liquids (ILs) and subsequent precipitation with antisolvent mixtures, thus allowing the separation of the sugar-rich fractions (cellulose and hemicellulose) from the lignin fraction. For this purpose, different concentration ranges of acetone:water antisolvent mixtures were studied. In all cases, a high recovery percentage and a high and effective separation of fractions was achieved for 1:1 acetone:water. The fractionated lignocellulosic compounds were studied by using infrared spectroscopy, scanning electron microscopy and <sup>1</sup>H nuclear magnetic resonance characterization techniques. This method allows the possibility of reusing IL, confirming the versatility of the established method. The fraction rich in cellulose and hemicellulose was subjected to acid hydrolysis (0.2 mol/L H<sub>2</sub>SO<sub>4</sub>) for 5 h at 140 °C, obtaining a yield of total reducing sugars of approximately 80%, much higher than those obtained in non-pretreated samples.This research was funded by Comunidad de Madrid (Spain) and ERDF (European Regional Development Fund), grant numbers S2013/MAE-2882 (RESTOENE-2-CM), S2018/EMT-4344 (BIOTRES-CM) and CSIC (201880E029). M.L.-S. acknowledges the support of the European Social Fund and Community of Madrid for her contracPeer reviewedMultidisciplinary Digital Publishing InstituteConsejo Superior de Investigaciones Científicas (España)Comunidad de MadridEuropean CommissionConsejo Superior de Investigaciones Científicas [https://ror.org/02gfc7t72]2019201920192019info:eu-repo/semantics/articlehttp://purl.org/coar/resource_type/c_6501Publisher's versioninfo:eu-repo/semantics/publishedVersionhttp://hdl.handle.net/10261/181552reponame:DIGITAL.CSIC. Repositorio Institucional del CSICinstname:Consejo Superior de Investigaciones Científicas (CSIC)Inglés#PLACEHOLDER_PARENT_METADATA_VALUE##PLACEHOLDER_PARENT_METADATA_VALUE#S2013/MAE-2882/RESTOENE-2-CMS2018/EMT-4344/BIOTRES-CMhttp://dx.doi.org/10.3390/app9091862Síinfo:eu-repo/semantics/openAccessoai:digital.csic.es:10261/1815522026-05-22T06:33:51Z
dc.title.none.fl_str_mv Fractionation of Lignocellulosic Biomass by Selective Precipitation from Ionic Liquid Dissolution
title Fractionation of Lignocellulosic Biomass by Selective Precipitation from Ionic Liquid Dissolution
spellingShingle Fractionation of Lignocellulosic Biomass by Selective Precipitation from Ionic Liquid Dissolution
Lara-Serrano, Marta
Lignocellulosic biomass
Ionic liquid
Ethyl methyl imidazolium
Fractionation
Pretreatment
Barley straw
title_short Fractionation of Lignocellulosic Biomass by Selective Precipitation from Ionic Liquid Dissolution
title_full Fractionation of Lignocellulosic Biomass by Selective Precipitation from Ionic Liquid Dissolution
title_fullStr Fractionation of Lignocellulosic Biomass by Selective Precipitation from Ionic Liquid Dissolution
title_full_unstemmed Fractionation of Lignocellulosic Biomass by Selective Precipitation from Ionic Liquid Dissolution
title_sort Fractionation of Lignocellulosic Biomass by Selective Precipitation from Ionic Liquid Dissolution
dc.creator.none.fl_str_mv Lara-Serrano, Marta
Morales-delaRosa, Silvia
Campos Martín, José Miguel
García Fierro, José Luis
author Lara-Serrano, Marta
author_facet Lara-Serrano, Marta
Morales-delaRosa, Silvia
Campos Martín, José Miguel
García Fierro, José Luis
author_role author
author2 Morales-delaRosa, Silvia
Campos Martín, José Miguel
García Fierro, José Luis
author2_role author
author
author
dc.contributor.none.fl_str_mv Consejo Superior de Investigaciones Científicas (España)
Comunidad de Madrid
European Commission
Consejo Superior de Investigaciones Científicas [https://ror.org/02gfc7t72]
dc.subject.none.fl_str_mv Lignocellulosic biomass
Ionic liquid
Ethyl methyl imidazolium
Fractionation
Pretreatment
Barley straw
topic Lignocellulosic biomass
Ionic liquid
Ethyl methyl imidazolium
Fractionation
Pretreatment
Barley straw
description We propose the treatment of barley straw with 1-ethyl-3-methylimidazolium acetate [EMIMAcO] ionic liquids (ILs) and subsequent precipitation with antisolvent mixtures, thus allowing the separation of the sugar-rich fractions (cellulose and hemicellulose) from the lignin fraction. For this purpose, different concentration ranges of acetone:water antisolvent mixtures were studied. In all cases, a high recovery percentage and a high and effective separation of fractions was achieved for 1:1 acetone:water. The fractionated lignocellulosic compounds were studied by using infrared spectroscopy, scanning electron microscopy and <sup>1</sup>H nuclear magnetic resonance characterization techniques. This method allows the possibility of reusing IL, confirming the versatility of the established method. The fraction rich in cellulose and hemicellulose was subjected to acid hydrolysis (0.2 mol/L H<sub>2</sub>SO<sub>4</sub>) for 5 h at 140 °C, obtaining a yield of total reducing sugars of approximately 80%, much higher than those obtained in non-pretreated samples.
publishDate 2019
dc.date.none.fl_str_mv 2019
2019
2019
2019
dc.type.none.fl_str_mv info:eu-repo/semantics/article
http://purl.org/coar/resource_type/c_6501
Publisher's version
info:eu-repo/semantics/publishedVersion
format article
status_str publishedVersion
dc.identifier.none.fl_str_mv http://hdl.handle.net/10261/181552
url http://hdl.handle.net/10261/181552
dc.language.none.fl_str_mv Inglés
language_invalid_str_mv Inglés
dc.relation.none.fl_str_mv #PLACEHOLDER_PARENT_METADATA_VALUE#
#PLACEHOLDER_PARENT_METADATA_VALUE#
S2013/MAE-2882/RESTOENE-2-CM
S2018/EMT-4344/BIOTRES-CM
http://dx.doi.org/10.3390/app9091862
Sí
dc.rights.none.fl_str_mv info:eu-repo/semantics/openAccess
eu_rights_str_mv openAccess
dc.publisher.none.fl_str_mv Multidisciplinary Digital Publishing Institute
publisher.none.fl_str_mv Multidisciplinary Digital Publishing Institute
dc.source.none.fl_str_mv reponame:DIGITAL.CSIC. Repositorio Institucional del CSIC
instname:Consejo Superior de Investigaciones Científicas (CSIC)
instname_str Consejo Superior de Investigaciones Científicas (CSIC)
reponame_str DIGITAL.CSIC. Repositorio Institucional del CSIC
collection DIGITAL.CSIC. Repositorio Institucional del CSIC
repository.name.fl_str_mv
repository.mail.fl_str_mv
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score 15,812429

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