Extraction and characterization of nanofibrillated cellulose from yacon plant (Smallanthus sonchifolius) stems

Detalhes bibliográficos
Autor(a) principal: Sousa,Romaildo Santos de
Data de Publicação: 2021
Outros Autores: Andrade,Alan Sulato de, Masson,Maria Lucia
Tipo de documento: Artigo
Idioma: eng
Título da fonte: Polímeros (São Carlos. Online)
Texto Completo: http://old.scielo.br/scielo.php?script=sci_arttext&pid=S0104-14282021000200404
Resumo: Abstract This study aimed to evaluate the process of cellulose extraction from yacon stem using combined pulping and bleaching processes to produce nanofibrillated cellulose (NFC). First, a chemical pulping process with NaOH was applied and, subsequently, the pulp obtained was bleached. From the chemical pulp (CP) bleached, NFC was obtained by the mechanical defibrillation in a colloidal grinder. Then, chemical composition, and infrared analysis of the pulps were performed. The pulping process showed a lower amount of extractives and lignin content, as a low yield and an excessively dark pulp. The CP bleached with NaClO2 showed the best results increased whiteness of the pulp. A suspension of NFC with fibers of 5-60 nm in diameter, high crystallinity index, and thermal stability was obtained. The results are promising and demonstrate the technical feasibility of obtaining NFC from yacon stems waste which is ideal to apply to other materials of the industry.
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spelling Extraction and characterization of nanofibrillated cellulose from yacon plant (Smallanthus sonchifolius) stemsbiopolymersbleachingnanotechnologychemical processlignocellulosic biomassAbstract This study aimed to evaluate the process of cellulose extraction from yacon stem using combined pulping and bleaching processes to produce nanofibrillated cellulose (NFC). First, a chemical pulping process with NaOH was applied and, subsequently, the pulp obtained was bleached. From the chemical pulp (CP) bleached, NFC was obtained by the mechanical defibrillation in a colloidal grinder. Then, chemical composition, and infrared analysis of the pulps were performed. The pulping process showed a lower amount of extractives and lignin content, as a low yield and an excessively dark pulp. The CP bleached with NaClO2 showed the best results increased whiteness of the pulp. A suspension of NFC with fibers of 5-60 nm in diameter, high crystallinity index, and thermal stability was obtained. The results are promising and demonstrate the technical feasibility of obtaining NFC from yacon stems waste which is ideal to apply to other materials of the industry.Associação Brasileira de Polímeros2021-01-01info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersiontext/htmlhttp://old.scielo.br/scielo.php?script=sci_arttext&pid=S0104-14282021000200404Polímeros v.31 n.2 2021reponame:Polímeros (São Carlos. Online)instname:Associação Brasileira de Polímeros (ABPol)instacron:ABPO10.1590/0104-1428.09620info:eu-repo/semantics/openAccessSousa,Romaildo Santos deAndrade,Alan Sulato deMasson,Maria Luciaeng2021-07-26T00:00:00Zoai:scielo:S0104-14282021000200404Revistahttp://www.scielo.br/pohttps://old.scielo.br/oai/scielo-oai.php||revista@abpol.org.br1678-51690104-1428opendoar:2021-07-26T00:00Polímeros (São Carlos. Online) - Associação Brasileira de Polímeros (ABPol)false
dc.title.none.fl_str_mv Extraction and characterization of nanofibrillated cellulose from yacon plant (Smallanthus sonchifolius) stems
title Extraction and characterization of nanofibrillated cellulose from yacon plant (Smallanthus sonchifolius) stems
spellingShingle Extraction and characterization of nanofibrillated cellulose from yacon plant (Smallanthus sonchifolius) stems
Sousa,Romaildo Santos de
biopolymers
bleaching
nanotechnology
chemical process
lignocellulosic biomass
title_short Extraction and characterization of nanofibrillated cellulose from yacon plant (Smallanthus sonchifolius) stems
title_full Extraction and characterization of nanofibrillated cellulose from yacon plant (Smallanthus sonchifolius) stems
title_fullStr Extraction and characterization of nanofibrillated cellulose from yacon plant (Smallanthus sonchifolius) stems
title_full_unstemmed Extraction and characterization of nanofibrillated cellulose from yacon plant (Smallanthus sonchifolius) stems
title_sort Extraction and characterization of nanofibrillated cellulose from yacon plant (Smallanthus sonchifolius) stems
author Sousa,Romaildo Santos de
author_facet Sousa,Romaildo Santos de
Andrade,Alan Sulato de
Masson,Maria Lucia
author_role author
author2 Andrade,Alan Sulato de
Masson,Maria Lucia
author2_role author
author
dc.contributor.author.fl_str_mv Sousa,Romaildo Santos de
Andrade,Alan Sulato de
Masson,Maria Lucia
dc.subject.por.fl_str_mv biopolymers
bleaching
nanotechnology
chemical process
lignocellulosic biomass
topic biopolymers
bleaching
nanotechnology
chemical process
lignocellulosic biomass
description Abstract This study aimed to evaluate the process of cellulose extraction from yacon stem using combined pulping and bleaching processes to produce nanofibrillated cellulose (NFC). First, a chemical pulping process with NaOH was applied and, subsequently, the pulp obtained was bleached. From the chemical pulp (CP) bleached, NFC was obtained by the mechanical defibrillation in a colloidal grinder. Then, chemical composition, and infrared analysis of the pulps were performed. The pulping process showed a lower amount of extractives and lignin content, as a low yield and an excessively dark pulp. The CP bleached with NaClO2 showed the best results increased whiteness of the pulp. A suspension of NFC with fibers of 5-60 nm in diameter, high crystallinity index, and thermal stability was obtained. The results are promising and demonstrate the technical feasibility of obtaining NFC from yacon stems waste which is ideal to apply to other materials of the industry.
publishDate 2021
dc.date.none.fl_str_mv 2021-01-01
dc.type.driver.fl_str_mv info:eu-repo/semantics/article
dc.type.status.fl_str_mv info:eu-repo/semantics/publishedVersion
format article
status_str publishedVersion
dc.identifier.uri.fl_str_mv http://old.scielo.br/scielo.php?script=sci_arttext&pid=S0104-14282021000200404
url http://old.scielo.br/scielo.php?script=sci_arttext&pid=S0104-14282021000200404
dc.language.iso.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv 10.1590/0104-1428.09620
dc.rights.driver.fl_str_mv info:eu-repo/semantics/openAccess
eu_rights_str_mv openAccess
dc.format.none.fl_str_mv text/html
dc.publisher.none.fl_str_mv Associação Brasileira de Polímeros
publisher.none.fl_str_mv Associação Brasileira de Polímeros
dc.source.none.fl_str_mv Polímeros v.31 n.2 2021
reponame:Polímeros (São Carlos. Online)
instname:Associação Brasileira de Polímeros (ABPol)
instacron:ABPO
instname_str Associação Brasileira de Polímeros (ABPol)
instacron_str ABPO
institution ABPO
reponame_str Polímeros (São Carlos. Online)
collection Polímeros (São Carlos. Online)
repository.name.fl_str_mv Polímeros (São Carlos. Online) - Associação Brasileira de Polímeros (ABPol)
repository.mail.fl_str_mv ||revista@abpol.org.br
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