Progress in Organosolv and Steam Explosion Pretreatments of Oil Palm Fibers for Biomacromolecules Extraction
Autor(a) principal: | |
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Data de Publicação: | 2021 |
Outros Autores: | , , , , , , , |
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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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 |
|
_version_ |
1808129294647427072 |