Lignin extraction from waste pine sawdust using a biomass derived binary solvent system

Detalhes bibliográficos
Autor(a) principal: Magalhães, Solange
Data de Publicação: 2021
Outros Autores: Filipe, Alexandra, Melro, Elodie, Fernandes, Catarina, Vitorino, Carla, Alves, Luís, Romano, Anabela, Rasteiro, Maria G., Medronho, Bruno
Tipo de documento: Artigo
Idioma: eng
Título da fonte: Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos)
Texto Completo: http://hdl.handle.net/10400.1/15411
Resumo: Lignocellulosic biomass fractionation is typically performed using methods that are somehow harsh to the environment, such as in the case of kraft pulping. In recent years, the development of new sustainable and environmentally friendly alternatives has grown significantly. Among the developed systems, bio-based solvents emerge as promising alternatives for biomass processing. Therefore, in the present work, the bio-based and renewable chemicals, levulinic acid (LA) and formic acid (FA), were combined to fractionate lignocellulosic waste (i.e., maritime pine sawdust) and isolate lignin. Different parameters, such as LA:FA ratio, temperature, and extraction time, were optimized to boost the yield and purity of extracted lignin. The LA:FA ratio was found to be crucial regarding the superior lignin extraction from the waste biomass. Moreover, the increase in temperature and extraction time enhances the amount of extracted residue but compromises the lignin purity and reduces its molecular weight. The electron microscopy images revealed that biomass samples suffer significant structural and morphological changes, which further suggests the suitability of the newly developed bio-fractionation process. The same was concluded by the FTIR analysis, in which no remaining lignin was detected in the cellulose-rich fraction. Overall, the novel combination of bio-sourced FA and LA has shown to be a very promising system for lignin extraction with high purity from biomass waste, thus contributing to extend the opportunities of lignin manipulation and valorization into novel added-value biomaterials.
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spelling Lignin extraction from waste pine sawdust using a biomass derived binary solvent systemBiomass fractionationFormic acidLevulinic acidLignocellulosic biomass fractionation is typically performed using methods that are somehow harsh to the environment, such as in the case of kraft pulping. In recent years, the development of new sustainable and environmentally friendly alternatives has grown significantly. Among the developed systems, bio-based solvents emerge as promising alternatives for biomass processing. Therefore, in the present work, the bio-based and renewable chemicals, levulinic acid (LA) and formic acid (FA), were combined to fractionate lignocellulosic waste (i.e., maritime pine sawdust) and isolate lignin. Different parameters, such as LA:FA ratio, temperature, and extraction time, were optimized to boost the yield and purity of extracted lignin. The LA:FA ratio was found to be crucial regarding the superior lignin extraction from the waste biomass. Moreover, the increase in temperature and extraction time enhances the amount of extracted residue but compromises the lignin purity and reduces its molecular weight. The electron microscopy images revealed that biomass samples suffer significant structural and morphological changes, which further suggests the suitability of the newly developed bio-fractionation process. The same was concluded by the FTIR analysis, in which no remaining lignin was detected in the cellulose-rich fraction. Overall, the novel combination of bio-sourced FA and LA has shown to be a very promising system for lignin extraction with high purity from biomass waste, thus contributing to extend the opportunities of lignin manipulation and valorization into novel added-value biomaterials.MDPISapientiaMagalhães, SolangeFilipe, AlexandraMelro, ElodieFernandes, CatarinaVitorino, CarlaAlves, LuísRomano, AnabelaRasteiro, Maria G.Medronho, Bruno2021-04-19T12:39:00Z2021-03-302021-04-09T13:47:44Z2021-03-30T00:00:00Zinfo:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/articleapplication/pdfhttp://hdl.handle.net/10400.1/15411engPolymers 13 (7): 1090 (2021)10.3390/polym13071090info:eu-repo/semantics/openAccessreponame:Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos)instname:Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informaçãoinstacron:RCAAP2024-03-06T02:02:46Zoai:sapientia.ualg.pt:10400.1/15411Portal AgregadorONGhttps://www.rcaap.pt/oai/openaireopendoar:71602024-03-19T20:06:12.979253Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) - Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informaçãofalse
dc.title.none.fl_str_mv Lignin extraction from waste pine sawdust using a biomass derived binary solvent system
title Lignin extraction from waste pine sawdust using a biomass derived binary solvent system
spellingShingle Lignin extraction from waste pine sawdust using a biomass derived binary solvent system
Magalhães, Solange
Biomass fractionation
Formic acid
Levulinic acid
title_short Lignin extraction from waste pine sawdust using a biomass derived binary solvent system
title_full Lignin extraction from waste pine sawdust using a biomass derived binary solvent system
title_fullStr Lignin extraction from waste pine sawdust using a biomass derived binary solvent system
title_full_unstemmed Lignin extraction from waste pine sawdust using a biomass derived binary solvent system
title_sort Lignin extraction from waste pine sawdust using a biomass derived binary solvent system
author Magalhães, Solange
author_facet Magalhães, Solange
Filipe, Alexandra
Melro, Elodie
Fernandes, Catarina
Vitorino, Carla
Alves, Luís
Romano, Anabela
Rasteiro, Maria G.
Medronho, Bruno
author_role author
author2 Filipe, Alexandra
Melro, Elodie
Fernandes, Catarina
Vitorino, Carla
Alves, Luís
Romano, Anabela
Rasteiro, Maria G.
Medronho, Bruno
author2_role author
author
author
author
author
author
author
author
dc.contributor.none.fl_str_mv MDPI
Sapientia
dc.contributor.author.fl_str_mv Magalhães, Solange
Filipe, Alexandra
Melro, Elodie
Fernandes, Catarina
Vitorino, Carla
Alves, Luís
Romano, Anabela
Rasteiro, Maria G.
Medronho, Bruno
dc.subject.por.fl_str_mv Biomass fractionation
Formic acid
Levulinic acid
topic Biomass fractionation
Formic acid
Levulinic acid
description Lignocellulosic biomass fractionation is typically performed using methods that are somehow harsh to the environment, such as in the case of kraft pulping. In recent years, the development of new sustainable and environmentally friendly alternatives has grown significantly. Among the developed systems, bio-based solvents emerge as promising alternatives for biomass processing. Therefore, in the present work, the bio-based and renewable chemicals, levulinic acid (LA) and formic acid (FA), were combined to fractionate lignocellulosic waste (i.e., maritime pine sawdust) and isolate lignin. Different parameters, such as LA:FA ratio, temperature, and extraction time, were optimized to boost the yield and purity of extracted lignin. The LA:FA ratio was found to be crucial regarding the superior lignin extraction from the waste biomass. Moreover, the increase in temperature and extraction time enhances the amount of extracted residue but compromises the lignin purity and reduces its molecular weight. The electron microscopy images revealed that biomass samples suffer significant structural and morphological changes, which further suggests the suitability of the newly developed bio-fractionation process. The same was concluded by the FTIR analysis, in which no remaining lignin was detected in the cellulose-rich fraction. Overall, the novel combination of bio-sourced FA and LA has shown to be a very promising system for lignin extraction with high purity from biomass waste, thus contributing to extend the opportunities of lignin manipulation and valorization into novel added-value biomaterials.
publishDate 2021
dc.date.none.fl_str_mv 2021-04-19T12:39:00Z
2021-03-30
2021-04-09T13:47:44Z
2021-03-30T00:00:00Z
dc.type.status.fl_str_mv info:eu-repo/semantics/publishedVersion
dc.type.driver.fl_str_mv info:eu-repo/semantics/article
format article
status_str publishedVersion
dc.identifier.uri.fl_str_mv http://hdl.handle.net/10400.1/15411
url http://hdl.handle.net/10400.1/15411
dc.language.iso.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv Polymers 13 (7): 1090 (2021)
10.3390/polym13071090
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eu_rights_str_mv openAccess
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