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Pre-treatment of different types of lignocellulosic biomass using ionic liquids

Bibliographic Details
Main Author: João, Karen Andreína Godinho
Publication Date: 2013
Format: Master thesis
Language: eng
Source: Repositórios Científicos de Acesso Aberto de Portugal (RCAAP)
Download full: http://hdl.handle.net/10362/10386
Summary: Dissertação apresentada na Faculdade de Ciências e Tecnologia da Universidade Nova de Lisboa para obtenção do grau Mestre em Biotecnologia
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network_name_str Repositórios Científicos de Acesso Aberto de Portugal (RCAAP)
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spelling Pre-treatment of different types of lignocellulosic biomass using ionic liquidsIonic liquidsLignocellulosic biomassPre-treatmentCelluloseHemicelluloseLigninDissertação apresentada na Faculdade de Ciências e Tecnologia da Universidade Nova de Lisboa para obtenção do grau Mestre em BiotecnologiaThe pre-treatment of biomass by ionic liquid (IL) is a method opening new possibilities of biomass fractionation for further valorisation of low value feedstock. This work is dedicated to study on the pre-treatment and fractionation of different types of lignocellulosic biomass into its major constituent fractions (cellulose, hemicellulose and lignin), using ILs. The biomass tested was: wheat straw, sugarcane bagasse, rice straw and triticale. Initially, the optimised methods were development basing on two methodologies described in the literature. This method allows the separation into high purity carbohydrate-rich (cellulose and hemicellulose) and lignin-rich fractions and permits an efficient IL recovery. The possibility of IL reuse was confirmed, demonstrating the great potential of the established method. The pre-treatment of various biomasses confirms the versatility and efficiency of the optimised methodology since not only the complete macroscopic dissolution of each biomass was achieved but also the fractionation process was successfully performed. Pre-treatment of sugarcane bagasse and triticale allowed to obtained cellulose samples rich in carbohydrate up to 90 wt %. In order to verify the potential further applicability of the obtained carbohydrate-rich fractions, as well as to evaluate the pre-treatment efficiency, the cellulose-rich fraction resulting from 1-ethyl-3-methylimidazolium acetate ([emim][OAc]) pre-treatment was subjected to enzymatic hydrolysis. Results showed a very high digestibility of the cellulose-rich samples and confirmed a high glucose yield for the optimised pre-treatment methodology. The samples obtained after the pre-treatment with ILs were qualitatively and quantitatively analysed by Fourier Transform Infrared Spectroscopy (FTIR). After the pre-treatment, the purity of the recovered ILs was evaluated through Nuclear Magnetic Resonance spectroscopy (NMR). The enzymatic hydrolysis results were analysed by High-Performance Liquid Chromatography(HPLC).Faculdade de Ciências e TecnologiaBogel-Lukasik, RafalRUNJoão, Karen Andreína Godinho2013-09-11T09:06:20Z20132013-01-01T00:00:00Zinfo:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/masterThesisapplication/pdfhttp://hdl.handle.net/10362/10386TID:201755610enginfo:eu-repo/semantics/openAccessreponame:Repositórios Científicos de Acesso Aberto de Portugal (RCAAP)instname:FCCN, serviços digitais da FCT – Fundação para a Ciência e a Tecnologiainstacron:RCAAP2024-05-22T17:14:12Zoai:run.unl.pt:10362/10386Portal AgregadorONGhttps://www.rcaap.pt/oai/openaireinfo@rcaap.ptopendoar:https://opendoar.ac.uk/repository/71602025-05-28T16:44:51.385713Repositórios Científicos de Acesso Aberto de Portugal (RCAAP) - FCCN, serviços digitais da FCT – Fundação para a Ciência e a Tecnologiafalse
dc.title.none.fl_str_mv Pre-treatment of different types of lignocellulosic biomass using ionic liquids
title Pre-treatment of different types of lignocellulosic biomass using ionic liquids
spellingShingle Pre-treatment of different types of lignocellulosic biomass using ionic liquids
João, Karen Andreína Godinho
Ionic liquids
Lignocellulosic biomass
Pre-treatment
Cellulose
Hemicellulose
Lignin
title_short Pre-treatment of different types of lignocellulosic biomass using ionic liquids
title_full Pre-treatment of different types of lignocellulosic biomass using ionic liquids
title_fullStr Pre-treatment of different types of lignocellulosic biomass using ionic liquids
title_full_unstemmed Pre-treatment of different types of lignocellulosic biomass using ionic liquids
title_sort Pre-treatment of different types of lignocellulosic biomass using ionic liquids
author João, Karen Andreína Godinho
author_facet João, Karen Andreína Godinho
author_role author
dc.contributor.none.fl_str_mv Bogel-Lukasik, Rafal
RUN
dc.contributor.author.fl_str_mv João, Karen Andreína Godinho
dc.subject.por.fl_str_mv Ionic liquids
Lignocellulosic biomass
Pre-treatment
Cellulose
Hemicellulose
Lignin
topic Ionic liquids
Lignocellulosic biomass
Pre-treatment
Cellulose
Hemicellulose
Lignin
description Dissertação apresentada na Faculdade de Ciências e Tecnologia da Universidade Nova de Lisboa para obtenção do grau Mestre em Biotecnologia
publishDate 2013
dc.date.none.fl_str_mv 2013-09-11T09:06:20Z
2013
2013-01-01T00:00:00Z
dc.type.status.fl_str_mv info:eu-repo/semantics/publishedVersion
dc.type.driver.fl_str_mv info:eu-repo/semantics/masterThesis
format masterThesis
status_str publishedVersion
dc.identifier.uri.fl_str_mv http://hdl.handle.net/10362/10386
TID:201755610
url http://hdl.handle.net/10362/10386
identifier_str_mv TID:201755610
dc.language.iso.fl_str_mv eng
language eng
dc.rights.driver.fl_str_mv info:eu-repo/semantics/openAccess
eu_rights_str_mv openAccess
dc.format.none.fl_str_mv application/pdf
dc.publisher.none.fl_str_mv Faculdade de Ciências e Tecnologia
publisher.none.fl_str_mv Faculdade de Ciências e Tecnologia
dc.source.none.fl_str_mv reponame:Repositórios Científicos de Acesso Aberto de Portugal (RCAAP)
instname:FCCN, serviços digitais da FCT – Fundação para a Ciência e a Tecnologia
instacron:RCAAP
instname_str FCCN, serviços digitais da FCT – Fundação para a Ciência e a Tecnologia
instacron_str RCAAP
institution RCAAP
reponame_str Repositórios Científicos de Acesso Aberto de Portugal (RCAAP)
collection Repositórios Científicos de Acesso Aberto de Portugal (RCAAP)
repository.name.fl_str_mv Repositórios Científicos de Acesso Aberto de Portugal (RCAAP) - FCCN, serviços digitais da FCT – Fundação para a Ciência e a Tecnologia
repository.mail.fl_str_mv info@rcaap.pt
_version_ 1833596164037935104

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