Comparative analysis of different chlorine-free extraction on oil palm mesocarp fiber
Autor(a) principal: | |
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Data de Publicação: | 2020 |
Outros Autores: | , , |
Tipo de documento: | Artigo |
Idioma: | eng |
Título da fonte: | Repositório Institucional da UNESP |
Texto Completo: | http://dx.doi.org/10.1016/j.indcrop.2020.112305 http://hdl.handle.net/11449/198711 |
Resumo: | Biobased products are a growing trend in industrial crops, but the natural variation among the plant sources demands the development of efficient pretreatments for standardizing the raw material. This work aims to evaluate the characteristics of pressed oil palm mesocarp fiber after alkaline and multi-step pretreatment methods. Multi-step pretreatment procedure involved acetosolv extraction with a mixture of 93 % (w/w) of acetic acid and 0.3 % (v/v) of hydrochloride acid (a chlorine-free), followed by alkaline bleaching. Acetosolv extraction was also used aiming to allow a more effective delignification during the bleaching stage, and the possibility to recover the solvent that was used in the next extractions; this fact could not be obtained in alkaline extraction alone. The fibers were evaluated concerning the chemical composition, X-ray diffraction, thermogravimetric analysis, scanning electron microscopy, and Fourier-transform infrared spectroscopy. The combined multi-step resulted in higher alpha-cellulose content (66 %), crystallinity index (65.20 %), and lower mass loss up to the onset degradation step. |
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Comparative analysis of different chlorine-free extraction on oil palm mesocarp fiberChemical treatmentChlorine-free extractionHydrogen peroxide treatmentLignocellulosic fiberOil palm fibersBiobased products are a growing trend in industrial crops, but the natural variation among the plant sources demands the development of efficient pretreatments for standardizing the raw material. This work aims to evaluate the characteristics of pressed oil palm mesocarp fiber after alkaline and multi-step pretreatment methods. Multi-step pretreatment procedure involved acetosolv extraction with a mixture of 93 % (w/w) of acetic acid and 0.3 % (v/v) of hydrochloride acid (a chlorine-free), followed by alkaline bleaching. Acetosolv extraction was also used aiming to allow a more effective delignification during the bleaching stage, and the possibility to recover the solvent that was used in the next extractions; this fact could not be obtained in alkaline extraction alone. The fibers were evaluated concerning the chemical composition, X-ray diffraction, thermogravimetric analysis, scanning electron microscopy, and Fourier-transform infrared spectroscopy. The combined multi-step resulted in higher alpha-cellulose content (66 %), crystallinity index (65.20 %), and lower mass loss up to the onset degradation step.Fatigue and Aeronautical Materials Research Group Department of Materials and Technology UNESP - Univ. Estadual PaulistaFederal University of Ceará Centro de Tecnologia, Bloco 709, Rua Campus do Pici – s/n – PiciEmbrapa Agroindustria Tropical Rua Dra. Sara Mesquita, 2270Fatigue and Aeronautical Materials Research Group Department of Materials and Technology UNESP - Univ. Estadual PaulistaUniversidade Estadual Paulista (Unesp)Centro de TecnologiaEmpresa Brasileira de Pesquisa Agropecuária (EMBRAPA)Pereira, Paulo Henrique F. [UNESP]Souza, Nágila F.Ornaghi, Heitor Luiz [UNESP]de Freitas, Morsyleide Rosa2020-12-12T01:20:06Z2020-12-12T01:20:06Z2020-08-01info:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/articlehttp://dx.doi.org/10.1016/j.indcrop.2020.112305Industrial Crops and Products, v. 150.0926-6690http://hdl.handle.net/11449/19871110.1016/j.indcrop.2020.1123052-s2.0-85082923186Scopusreponame:Repositório Institucional da UNESPinstname:Universidade Estadual Paulista (UNESP)instacron:UNESPengIndustrial Crops and Productsinfo:eu-repo/semantics/openAccess2021-10-22T19:50:49Zoai:repositorio.unesp.br:11449/198711Repositório InstitucionalPUBhttp://repositorio.unesp.br/oai/requestopendoar:29462024-08-05T15:38:58.161735Repositório Institucional da UNESP - Universidade Estadual Paulista (UNESP)false |
dc.title.none.fl_str_mv |
Comparative analysis of different chlorine-free extraction on oil palm mesocarp fiber |
title |
Comparative analysis of different chlorine-free extraction on oil palm mesocarp fiber |
spellingShingle |
Comparative analysis of different chlorine-free extraction on oil palm mesocarp fiber Pereira, Paulo Henrique F. [UNESP] Chemical treatment Chlorine-free extraction Hydrogen peroxide treatment Lignocellulosic fiber Oil palm fibers |
title_short |
Comparative analysis of different chlorine-free extraction on oil palm mesocarp fiber |
title_full |
Comparative analysis of different chlorine-free extraction on oil palm mesocarp fiber |
title_fullStr |
Comparative analysis of different chlorine-free extraction on oil palm mesocarp fiber |
title_full_unstemmed |
Comparative analysis of different chlorine-free extraction on oil palm mesocarp fiber |
title_sort |
Comparative analysis of different chlorine-free extraction on oil palm mesocarp fiber |
author |
Pereira, Paulo Henrique F. [UNESP] |
author_facet |
Pereira, Paulo Henrique F. [UNESP] Souza, Nágila F. Ornaghi, Heitor Luiz [UNESP] de Freitas, Morsyleide Rosa |
author_role |
author |
author2 |
Souza, Nágila F. Ornaghi, Heitor Luiz [UNESP] de Freitas, Morsyleide Rosa |
author2_role |
author author author |
dc.contributor.none.fl_str_mv |
Universidade Estadual Paulista (Unesp) Centro de Tecnologia Empresa Brasileira de Pesquisa Agropecuária (EMBRAPA) |
dc.contributor.author.fl_str_mv |
Pereira, Paulo Henrique F. [UNESP] Souza, Nágila F. Ornaghi, Heitor Luiz [UNESP] de Freitas, Morsyleide Rosa |
dc.subject.por.fl_str_mv |
Chemical treatment Chlorine-free extraction Hydrogen peroxide treatment Lignocellulosic fiber Oil palm fibers |
topic |
Chemical treatment Chlorine-free extraction Hydrogen peroxide treatment Lignocellulosic fiber Oil palm fibers |
description |
Biobased products are a growing trend in industrial crops, but the natural variation among the plant sources demands the development of efficient pretreatments for standardizing the raw material. This work aims to evaluate the characteristics of pressed oil palm mesocarp fiber after alkaline and multi-step pretreatment methods. Multi-step pretreatment procedure involved acetosolv extraction with a mixture of 93 % (w/w) of acetic acid and 0.3 % (v/v) of hydrochloride acid (a chlorine-free), followed by alkaline bleaching. Acetosolv extraction was also used aiming to allow a more effective delignification during the bleaching stage, and the possibility to recover the solvent that was used in the next extractions; this fact could not be obtained in alkaline extraction alone. The fibers were evaluated concerning the chemical composition, X-ray diffraction, thermogravimetric analysis, scanning electron microscopy, and Fourier-transform infrared spectroscopy. The combined multi-step resulted in higher alpha-cellulose content (66 %), crystallinity index (65.20 %), and lower mass loss up to the onset degradation step. |
publishDate |
2020 |
dc.date.none.fl_str_mv |
2020-12-12T01:20:06Z 2020-12-12T01:20:06Z 2020-08-01 |
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.indcrop.2020.112305 Industrial Crops and Products, v. 150. 0926-6690 http://hdl.handle.net/11449/198711 10.1016/j.indcrop.2020.112305 2-s2.0-85082923186 |
url |
http://dx.doi.org/10.1016/j.indcrop.2020.112305 http://hdl.handle.net/11449/198711 |
identifier_str_mv |
Industrial Crops and Products, v. 150. 0926-6690 10.1016/j.indcrop.2020.112305 2-s2.0-85082923186 |
dc.language.iso.fl_str_mv |
eng |
language |
eng |
dc.relation.none.fl_str_mv |
Industrial Crops and Products |
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_ |
1808128544227721216 |