Progress in Organosolv and Steam Explosion Pretreatments of Oil Palm Fibers for Biomacromolecules Extraction

Detalhes bibliográficos
Autor(a) principal: Souza, Nágila F.
Data de Publicação: 2021
Outros Autores: Almeida, Jéssica S., Pinheiro, José A., Pereira, Paulo H. F. [UNESP], Saraiva Morais, João P., Figueirêdo, Cléa B., Azeredo, Henriette M.C., Leitão, Renato C., Rosa, Morsyleide de F.
Tipo de documento: Artigo
Idioma: eng
Título da fonte: Repositório Institucional da UNESP
Texto Completo: http://dx.doi.org/10.1080/15440478.2021.2002763
http://hdl.handle.net/11449/222982
Resumo: Plant fibers are excellent sources of biomacromolecules, but the extraction of these chemicals critically depends on pretreatments on the biomass. In this work, steam explosion followed by acetosolv or ethanosolv pulping were evaluated as pretreatments for cellulose nanocrystal and lignin extraction from oil palm mesocarp fibers. The steam explosion improves defibrillation of the biomass, deconstructs lignocellulosic material, facilitating the separation between lignin and polysaccharides by organosolv pulping. The effects of acetic acid or sodium hydroxide concentrations and reaction time for acetosolv or ethanosolv pulping were evaluated by a central composite design. Fibers and biomacromolecules were characterized using analytical methods, including SEM, TEM, DRX, zeta potential, and FTIR. The optimized conditions to obtain cellulose nanocrystals from bleached acetosolv fibers (CNCA) were 80% (w/w) acetic acid catalyzed with HCl 0.6% (w/w) for 35 min, while the optimized conditions from ethanosolv fibers (CNCE) were NaOH 4% (w/v) and ethanol 95% (v/v) for 60 min. The lignins obtained from both optimized conditions presented high purity. The acetosolv delignification was more effective to extract the insoluble lignin (yield of 36.7%) than ethanosolv (yield of 23.2%). The CNCA and CNCE presented, respectively, high crystallinity (68% and 56%) and good aspect ratio (26 and 25).
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spelling Progress in Organosolv and Steam Explosion Pretreatments of Oil Palm Fibers for Biomacromolecules Extractionchemical analysisgreen solventsLigninnanocelluloseorganosolv pulpingsteam explosionPlant fibers are excellent sources of biomacromolecules, but the extraction of these chemicals critically depends on pretreatments on the biomass. In this work, steam explosion followed by acetosolv or ethanosolv pulping were evaluated as pretreatments for cellulose nanocrystal and lignin extraction from oil palm mesocarp fibers. The steam explosion improves defibrillation of the biomass, deconstructs lignocellulosic material, facilitating the separation between lignin and polysaccharides by organosolv pulping. The effects of acetic acid or sodium hydroxide concentrations and reaction time for acetosolv or ethanosolv pulping were evaluated by a central composite design. Fibers and biomacromolecules were characterized using analytical methods, including SEM, TEM, DRX, zeta potential, and FTIR. The optimized conditions to obtain cellulose nanocrystals from bleached acetosolv fibers (CNCA) were 80% (w/w) acetic acid catalyzed with HCl 0.6% (w/w) for 35 min, while the optimized conditions from ethanosolv fibers (CNCE) were NaOH 4% (w/v) and ethanol 95% (v/v) for 60 min. The lignins obtained from both optimized conditions presented high purity. The acetosolv delignification was more effective to extract the insoluble lignin (yield of 36.7%) than ethanosolv (yield of 23.2%). The CNCA and CNCE presented, respectively, high crystallinity (68% and 56%) and good aspect ratio (26 and 25).Centro de Tecnologia Universidade Federal do CearáCenter of Sciences and Technology Universidade Estadual do CearáFatigue and Aeronautical Materials Research Group Department of Materials and Technology UNESP - Univ. Estadual PaulistaEmbrapa CottonEmbrapa Tropical AgroindustryEmbrapa InstrumentationFatigue and Aeronautical Materials Research Group Department of Materials and Technology UNESP - Univ. Estadual PaulistaUniversidade Federal do CearáUniversidade Estadual do CearáUniversidade Estadual Paulista (UNESP)Empresa Brasileira de Pesquisa Agropecuária (EMBRAPA)Souza, Nágila F.Almeida, Jéssica S.Pinheiro, José A.Pereira, Paulo H. F. [UNESP]Saraiva Morais, João P.Figueirêdo, Cléa B.Azeredo, Henriette M.C.Leitão, Renato C.Rosa, Morsyleide de F.2022-04-28T19:47:52Z2022-04-28T19:47:52Z2021-01-01info:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/articlehttp://dx.doi.org/10.1080/15440478.2021.2002763Journal of Natural Fibers.1544-046X1544-0478http://hdl.handle.net/11449/22298210.1080/15440478.2021.20027632-s2.0-85120565077Scopusreponame:Repositório Institucional da UNESPinstname:Universidade Estadual Paulista (UNESP)instacron:UNESPengJournal of Natural Fibersinfo:eu-repo/semantics/openAccess2022-04-28T19:47:52Zoai:repositorio.unesp.br:11449/222982Repositório InstitucionalPUBhttp://repositorio.unesp.br/oai/requestopendoar:29462024-08-05T21:10:44.792463Repositório Institucional da UNESP - Universidade Estadual Paulista (UNESP)false
dc.title.none.fl_str_mv Progress in Organosolv and Steam Explosion Pretreatments of Oil Palm Fibers for Biomacromolecules Extraction
title Progress in Organosolv and Steam Explosion Pretreatments of Oil Palm Fibers for Biomacromolecules Extraction
spellingShingle Progress in Organosolv and Steam Explosion Pretreatments of Oil Palm Fibers for Biomacromolecules Extraction
Souza, Nágila F.
chemical analysis
green solvents
Lignin
nanocellulose
organosolv pulping
steam explosion
title_short Progress in Organosolv and Steam Explosion Pretreatments of Oil Palm Fibers for Biomacromolecules Extraction
title_full Progress in Organosolv and Steam Explosion Pretreatments of Oil Palm Fibers for Biomacromolecules Extraction
title_fullStr Progress in Organosolv and Steam Explosion Pretreatments of Oil Palm Fibers for Biomacromolecules Extraction
title_full_unstemmed Progress in Organosolv and Steam Explosion Pretreatments of Oil Palm Fibers for Biomacromolecules Extraction
title_sort Progress in Organosolv and Steam Explosion Pretreatments of Oil Palm Fibers for Biomacromolecules Extraction
author Souza, Nágila F.
author_facet Souza, Nágila F.
Almeida, Jéssica S.
Pinheiro, José A.
Pereira, Paulo H. F. [UNESP]
Saraiva Morais, João P.
Figueirêdo, Cléa B.
Azeredo, Henriette M.C.
Leitão, Renato C.
Rosa, Morsyleide de F.
author_role author
author2 Almeida, Jéssica S.
Pinheiro, José A.
Pereira, Paulo H. F. [UNESP]
Saraiva Morais, João P.
Figueirêdo, Cléa B.
Azeredo, Henriette M.C.
Leitão, Renato C.
Rosa, Morsyleide de F.
author2_role author
author
author
author
author
author
author
author
dc.contributor.none.fl_str_mv Universidade Federal do Ceará
Universidade Estadual do Ceará
Universidade Estadual Paulista (UNESP)
Empresa Brasileira de Pesquisa Agropecuária (EMBRAPA)
dc.contributor.author.fl_str_mv Souza, Nágila F.
Almeida, Jéssica S.
Pinheiro, José A.
Pereira, Paulo H. F. [UNESP]
Saraiva Morais, João P.
Figueirêdo, Cléa B.
Azeredo, Henriette M.C.
Leitão, Renato C.
Rosa, Morsyleide de F.
dc.subject.por.fl_str_mv chemical analysis
green solvents
Lignin
nanocellulose
organosolv pulping
steam explosion
topic chemical analysis
green solvents
Lignin
nanocellulose
organosolv pulping
steam explosion
description Plant fibers are excellent sources of biomacromolecules, but the extraction of these chemicals critically depends on pretreatments on the biomass. In this work, steam explosion followed by acetosolv or ethanosolv pulping were evaluated as pretreatments for cellulose nanocrystal and lignin extraction from oil palm mesocarp fibers. The steam explosion improves defibrillation of the biomass, deconstructs lignocellulosic material, facilitating the separation between lignin and polysaccharides by organosolv pulping. The effects of acetic acid or sodium hydroxide concentrations and reaction time for acetosolv or ethanosolv pulping were evaluated by a central composite design. Fibers and biomacromolecules were characterized using analytical methods, including SEM, TEM, DRX, zeta potential, and FTIR. The optimized conditions to obtain cellulose nanocrystals from bleached acetosolv fibers (CNCA) were 80% (w/w) acetic acid catalyzed with HCl 0.6% (w/w) for 35 min, while the optimized conditions from ethanosolv fibers (CNCE) were NaOH 4% (w/v) and ethanol 95% (v/v) for 60 min. The lignins obtained from both optimized conditions presented high purity. The acetosolv delignification was more effective to extract the insoluble lignin (yield of 36.7%) than ethanosolv (yield of 23.2%). The CNCA and CNCE presented, respectively, high crystallinity (68% and 56%) and good aspect ratio (26 and 25).
publishDate 2021
dc.date.none.fl_str_mv 2021-01-01
2022-04-28T19:47:52Z
2022-04-28T19:47:52Z
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/10.1080/15440478.2021.2002763
Journal of Natural Fibers.
1544-046X
1544-0478
http://hdl.handle.net/11449/222982
10.1080/15440478.2021.2002763
2-s2.0-85120565077
url http://dx.doi.org/10.1080/15440478.2021.2002763
http://hdl.handle.net/11449/222982
identifier_str_mv Journal of Natural Fibers.
1544-046X
1544-0478
10.1080/15440478.2021.2002763
2-s2.0-85120565077
dc.language.iso.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv Journal of Natural Fibers
dc.rights.driver.fl_str_mv info:eu-repo/semantics/openAccess
eu_rights_str_mv openAccess
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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