Effects of pretreatment applied to sugarcane bagasse on composition and morphology of cellulosic fractions

Detalhes bibliográficos
Autor(a) principal: Laluce, Cecilia [UNESP]
Data de Publicação: 2019
Outros Autores: Roldan, Ismael U. [UNESP], Pecoraro, Edison [UNESP], Igbojionu, Longinus I. [UNESP], Ribeiro, Clovis A. [UNESP]
Tipo de documento: Artigo
Idioma: eng
Título da fonte: Repositório Institucional da UNESP
Texto Completo: http://dx.doi.org/10.1016/j.biombioe.2019.03.002
http://hdl.handle.net/11449/189171
Resumo: Due to the growing demand for renewable energy, the energy based on biomass plays an important role in energy policies of countries all over the world. Seven different pretreatments were performed on SCB to obtain yields, chemical composition, particle sizes and crystallinity indexes. The tools used to study the effects of pretreatments on SCB were X-ray diffraction (change in crystalline and amorphous regions) and SEM images. The application of microwave-assisted irradiation allowed the obtaining of the lowest cellulose removal with the fractions PT-6 and PT-7. FTIR spectra showed the removal of hemicellulose and lignin content during pretreatments. DP values decreased significantly suggesting higher digestibility of the seven cellulosic fractions by cellulolytic enzymes. In the present work, the presence of cellulose, hemicellulose and lignin structures in the sample of sugarcane bagasse and cellulosic fractions were indicated by the characteristic absorption bands (cm−1) of groups shown by the FTIR spectrum for hemicellulose and lignin. SEM images showed extensive degradation of the buddle of fibers of some cellulosic fractions. Mass loss (ML) obtained with SCB and cellulosic fractions were much greater under O2 atmosphere than under N2 atmosphere. The most relevant novelty of the present research was the use of chemical and physical methodologies to characterize sugarcane bagasse and their cellulosic fractions. The objective of this work was to determine the chemical composition and physical characteristics such as particle sizes as well as the removal of components resulting from seven different pretreatments. Nevertheless, future work is greatly required for improvement in this area.
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spelling Effects of pretreatment applied to sugarcane bagasse on composition and morphology of cellulosic fractionsPretreated materialsPretreatmentsResistance to thermal degradationSecond-generation ethanolSugarcane bagasseDue to the growing demand for renewable energy, the energy based on biomass plays an important role in energy policies of countries all over the world. Seven different pretreatments were performed on SCB to obtain yields, chemical composition, particle sizes and crystallinity indexes. The tools used to study the effects of pretreatments on SCB were X-ray diffraction (change in crystalline and amorphous regions) and SEM images. The application of microwave-assisted irradiation allowed the obtaining of the lowest cellulose removal with the fractions PT-6 and PT-7. FTIR spectra showed the removal of hemicellulose and lignin content during pretreatments. DP values decreased significantly suggesting higher digestibility of the seven cellulosic fractions by cellulolytic enzymes. In the present work, the presence of cellulose, hemicellulose and lignin structures in the sample of sugarcane bagasse and cellulosic fractions were indicated by the characteristic absorption bands (cm−1) of groups shown by the FTIR spectrum for hemicellulose and lignin. SEM images showed extensive degradation of the buddle of fibers of some cellulosic fractions. Mass loss (ML) obtained with SCB and cellulosic fractions were much greater under O2 atmosphere than under N2 atmosphere. The most relevant novelty of the present research was the use of chemical and physical methodologies to characterize sugarcane bagasse and their cellulosic fractions. The objective of this work was to determine the chemical composition and physical characteristics such as particle sizes as well as the removal of components resulting from seven different pretreatments. Nevertheless, future work is greatly required for improvement in this area.Department of Biochemistry and Technological Chemistry Institute of Chemistry State University of São Paulo Júlio de Mesquita Filho-UNESP, R. Professor Francisco Degni, No. 55Institute of Chemistry State University of São Paulo Júlio de Mesquita Filho-UNESP Dept. of General and Inorganic Chemistry, R. Professor Francisco Degni, No. 55Bioenergy Research Institute - IPBEN State University of São Paulo Júlio de Mesquita Filho-UNESP, R. Professor Francisco Degni, No. 55Dept Analytical Chemistry Institute of Chemistry State University of São Paulo Júlio de Mesquita Filho-UNESP, R. Professor Francisco Degni, No. 55Department of Biochemistry and Technological Chemistry Institute of Chemistry State University of São Paulo Júlio de Mesquita Filho-UNESP, R. Professor Francisco Degni, No. 55Institute of Chemistry State University of São Paulo Júlio de Mesquita Filho-UNESP Dept. of General and Inorganic Chemistry, R. Professor Francisco Degni, No. 55Bioenergy Research Institute - IPBEN State University of São Paulo Júlio de Mesquita Filho-UNESP, R. Professor Francisco Degni, No. 55Dept Analytical Chemistry Institute of Chemistry State University of São Paulo Júlio de Mesquita Filho-UNESP, R. Professor Francisco Degni, No. 55Universidade Estadual Paulista (Unesp)Laluce, Cecilia [UNESP]Roldan, Ismael U. [UNESP]Pecoraro, Edison [UNESP]Igbojionu, Longinus I. [UNESP]Ribeiro, Clovis A. [UNESP]2019-10-06T16:32:05Z2019-10-06T16:32:05Z2019-07-01info:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/article231-238http://dx.doi.org/10.1016/j.biombioe.2019.03.002Biomass and Bioenergy, v. 126, p. 231-238.1873-29090961-9534http://hdl.handle.net/11449/18917110.1016/j.biombioe.2019.03.0022-s2.0-8506626460852825849127743784983108918100820000-0002-5049-87970000-0002-7984-5908Scopusreponame:Repositório Institucional da UNESPinstname:Universidade Estadual Paulista (UNESP)instacron:UNESPengBiomass and Bioenergyinfo:eu-repo/semantics/openAccess2022-03-03T13:29:18Zoai:repositorio.unesp.br:11449/189171Repositório InstitucionalPUBhttp://repositorio.unesp.br/oai/requestopendoar:29462024-08-05T15:50:36.351326Repositório Institucional da UNESP - Universidade Estadual Paulista (UNESP)false
dc.title.none.fl_str_mv Effects of pretreatment applied to sugarcane bagasse on composition and morphology of cellulosic fractions
title Effects of pretreatment applied to sugarcane bagasse on composition and morphology of cellulosic fractions
spellingShingle Effects of pretreatment applied to sugarcane bagasse on composition and morphology of cellulosic fractions
Laluce, Cecilia [UNESP]
Pretreated materials
Pretreatments
Resistance to thermal degradation
Second-generation ethanol
Sugarcane bagasse
title_short Effects of pretreatment applied to sugarcane bagasse on composition and morphology of cellulosic fractions
title_full Effects of pretreatment applied to sugarcane bagasse on composition and morphology of cellulosic fractions
title_fullStr Effects of pretreatment applied to sugarcane bagasse on composition and morphology of cellulosic fractions
title_full_unstemmed Effects of pretreatment applied to sugarcane bagasse on composition and morphology of cellulosic fractions
title_sort Effects of pretreatment applied to sugarcane bagasse on composition and morphology of cellulosic fractions
author Laluce, Cecilia [UNESP]
author_facet Laluce, Cecilia [UNESP]
Roldan, Ismael U. [UNESP]
Pecoraro, Edison [UNESP]
Igbojionu, Longinus I. [UNESP]
Ribeiro, Clovis A. [UNESP]
author_role author
author2 Roldan, Ismael U. [UNESP]
Pecoraro, Edison [UNESP]
Igbojionu, Longinus I. [UNESP]
Ribeiro, Clovis A. [UNESP]
author2_role author
author
author
author
dc.contributor.none.fl_str_mv Universidade Estadual Paulista (Unesp)
dc.contributor.author.fl_str_mv Laluce, Cecilia [UNESP]
Roldan, Ismael U. [UNESP]
Pecoraro, Edison [UNESP]
Igbojionu, Longinus I. [UNESP]
Ribeiro, Clovis A. [UNESP]
dc.subject.por.fl_str_mv Pretreated materials
Pretreatments
Resistance to thermal degradation
Second-generation ethanol
Sugarcane bagasse
topic Pretreated materials
Pretreatments
Resistance to thermal degradation
Second-generation ethanol
Sugarcane bagasse
description Due to the growing demand for renewable energy, the energy based on biomass plays an important role in energy policies of countries all over the world. Seven different pretreatments were performed on SCB to obtain yields, chemical composition, particle sizes and crystallinity indexes. The tools used to study the effects of pretreatments on SCB were X-ray diffraction (change in crystalline and amorphous regions) and SEM images. The application of microwave-assisted irradiation allowed the obtaining of the lowest cellulose removal with the fractions PT-6 and PT-7. FTIR spectra showed the removal of hemicellulose and lignin content during pretreatments. DP values decreased significantly suggesting higher digestibility of the seven cellulosic fractions by cellulolytic enzymes. In the present work, the presence of cellulose, hemicellulose and lignin structures in the sample of sugarcane bagasse and cellulosic fractions were indicated by the characteristic absorption bands (cm−1) of groups shown by the FTIR spectrum for hemicellulose and lignin. SEM images showed extensive degradation of the buddle of fibers of some cellulosic fractions. Mass loss (ML) obtained with SCB and cellulosic fractions were much greater under O2 atmosphere than under N2 atmosphere. The most relevant novelty of the present research was the use of chemical and physical methodologies to characterize sugarcane bagasse and their cellulosic fractions. The objective of this work was to determine the chemical composition and physical characteristics such as particle sizes as well as the removal of components resulting from seven different pretreatments. Nevertheless, future work is greatly required for improvement in this area.
publishDate 2019
dc.date.none.fl_str_mv 2019-10-06T16:32:05Z
2019-10-06T16:32:05Z
2019-07-01
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://dx.doi.org/10.1016/j.biombioe.2019.03.002
Biomass and Bioenergy, v. 126, p. 231-238.
1873-2909
0961-9534
http://hdl.handle.net/11449/189171
10.1016/j.biombioe.2019.03.002
2-s2.0-85066264608
528258491277437
8498310891810082
0000-0002-5049-8797
0000-0002-7984-5908
url http://dx.doi.org/10.1016/j.biombioe.2019.03.002
http://hdl.handle.net/11449/189171
identifier_str_mv Biomass and Bioenergy, v. 126, p. 231-238.
1873-2909
0961-9534
10.1016/j.biombioe.2019.03.002
2-s2.0-85066264608
528258491277437
8498310891810082
0000-0002-5049-8797
0000-0002-7984-5908
dc.language.iso.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv Biomass and Bioenergy
dc.rights.driver.fl_str_mv info:eu-repo/semantics/openAccess
eu_rights_str_mv openAccess
dc.format.none.fl_str_mv 231-238
dc.source.none.fl_str_mv Scopus
reponame:Repositório Institucional da UNESP
instname:Universidade Estadual Paulista (UNESP)
instacron:UNESP
instname_str Universidade Estadual Paulista (UNESP)
instacron_str UNESP
institution UNESP
reponame_str Repositório Institucional da UNESP
collection Repositório Institucional da UNESP
repository.name.fl_str_mv Repositório Institucional da UNESP - Universidade Estadual Paulista (UNESP)
repository.mail.fl_str_mv
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