Synthesis of thermoplastic starch-bacterial cellulose nanocomposites via in situ fermentation

Detalhes bibliográficos
Autor(a) principal: Osorio,Marlon A.
Data de Publicação: 2014
Outros Autores: Restrepo,David, Velásquez-Cock,Jorge A., Zuluaga,Robin O., Montoya,Ursula, Rojas,Orlando, Gañán,Piedad F., Marin,Diana, Castro,Cristina I.
Tipo de documento: Artigo
Idioma: eng
Título da fonte: Journal of the Brazilian Chemical Society (Online)
Texto Completo: http://old.scielo.br/scielo.php?script=sci_arttext&pid=S0103-50532014000900009
Resumo: In this paper, a nanocomposite based on thermoplastic starch (TPS) reinforced with bacterial cellulose (BC) nanoribbons was synthesized by in situ fermentation and chemical crosslinking. BC nanoribbons were produced by a Colombian native strain of Gluconacetobacter medellinensis; the nanocomposite was plasticized with glycerol and crosslinked with citric acid. The reinforcement percentage in the nanocomposites remained constant throughout the fermentation time because of the TPS absorption capability of the BC network. Nanocomposites produced after fermentation for seven days were characterized using thermogravimetric analysis (TGA); Fourier transformed infrared spectroscopy with attenuated total reflectance (FTIR-ATR), mechanical testing and scanning electron microscopy (SEM). The new TPS/BC nanocomposites exhibit strong interfacial adhesion, improved thermal behavior, water stability and enhanced mechanical properties. These findings support the applications of starch in the packaging industry.
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spelling Synthesis of thermoplastic starch-bacterial cellulose nanocomposites via in situ fermentationnanocompositethermoplastic starchbacterial cellulosein situ fermentationchemical crosslinkingIn this paper, a nanocomposite based on thermoplastic starch (TPS) reinforced with bacterial cellulose (BC) nanoribbons was synthesized by in situ fermentation and chemical crosslinking. BC nanoribbons were produced by a Colombian native strain of Gluconacetobacter medellinensis; the nanocomposite was plasticized with glycerol and crosslinked with citric acid. The reinforcement percentage in the nanocomposites remained constant throughout the fermentation time because of the TPS absorption capability of the BC network. Nanocomposites produced after fermentation for seven days were characterized using thermogravimetric analysis (TGA); Fourier transformed infrared spectroscopy with attenuated total reflectance (FTIR-ATR), mechanical testing and scanning electron microscopy (SEM). The new TPS/BC nanocomposites exhibit strong interfacial adhesion, improved thermal behavior, water stability and enhanced mechanical properties. These findings support the applications of starch in the packaging industry.Sociedade Brasileira de Química2014-09-01info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersiontext/htmlhttp://old.scielo.br/scielo.php?script=sci_arttext&pid=S0103-50532014000900009Journal of the Brazilian Chemical Society v.25 n.9 2014reponame:Journal of the Brazilian Chemical Society (Online)instname:Sociedade Brasileira de Química (SBQ)instacron:SBQ10.5935/0103-5053.20140146info:eu-repo/semantics/openAccessOsorio,Marlon A.Restrepo,DavidVelásquez-Cock,Jorge A.Zuluaga,Robin O.Montoya,UrsulaRojas,OrlandoGañán,Piedad F.Marin,DianaCastro,Cristina I.eng2014-09-30T00:00:00Zoai:scielo:S0103-50532014000900009Revistahttp://jbcs.sbq.org.brONGhttps://old.scielo.br/oai/scielo-oai.php||office@jbcs.sbq.org.br1678-47900103-5053opendoar:2014-09-30T00:00Journal of the Brazilian Chemical Society (Online) - Sociedade Brasileira de Química (SBQ)false
dc.title.none.fl_str_mv Synthesis of thermoplastic starch-bacterial cellulose nanocomposites via in situ fermentation
title Synthesis of thermoplastic starch-bacterial cellulose nanocomposites via in situ fermentation
spellingShingle Synthesis of thermoplastic starch-bacterial cellulose nanocomposites via in situ fermentation
Osorio,Marlon A.
nanocomposite
thermoplastic starch
bacterial cellulose
in situ fermentation
chemical crosslinking
title_short Synthesis of thermoplastic starch-bacterial cellulose nanocomposites via in situ fermentation
title_full Synthesis of thermoplastic starch-bacterial cellulose nanocomposites via in situ fermentation
title_fullStr Synthesis of thermoplastic starch-bacterial cellulose nanocomposites via in situ fermentation
title_full_unstemmed Synthesis of thermoplastic starch-bacterial cellulose nanocomposites via in situ fermentation
title_sort Synthesis of thermoplastic starch-bacterial cellulose nanocomposites via in situ fermentation
author Osorio,Marlon A.
author_facet Osorio,Marlon A.
Restrepo,David
Velásquez-Cock,Jorge A.
Zuluaga,Robin O.
Montoya,Ursula
Rojas,Orlando
Gañán,Piedad F.
Marin,Diana
Castro,Cristina I.
author_role author
author2 Restrepo,David
Velásquez-Cock,Jorge A.
Zuluaga,Robin O.
Montoya,Ursula
Rojas,Orlando
Gañán,Piedad F.
Marin,Diana
Castro,Cristina I.
author2_role author
author
author
author
author
author
author
author
dc.contributor.author.fl_str_mv Osorio,Marlon A.
Restrepo,David
Velásquez-Cock,Jorge A.
Zuluaga,Robin O.
Montoya,Ursula
Rojas,Orlando
Gañán,Piedad F.
Marin,Diana
Castro,Cristina I.
dc.subject.por.fl_str_mv nanocomposite
thermoplastic starch
bacterial cellulose
in situ fermentation
chemical crosslinking
topic nanocomposite
thermoplastic starch
bacterial cellulose
in situ fermentation
chemical crosslinking
description In this paper, a nanocomposite based on thermoplastic starch (TPS) reinforced with bacterial cellulose (BC) nanoribbons was synthesized by in situ fermentation and chemical crosslinking. BC nanoribbons were produced by a Colombian native strain of Gluconacetobacter medellinensis; the nanocomposite was plasticized with glycerol and crosslinked with citric acid. The reinforcement percentage in the nanocomposites remained constant throughout the fermentation time because of the TPS absorption capability of the BC network. Nanocomposites produced after fermentation for seven days were characterized using thermogravimetric analysis (TGA); Fourier transformed infrared spectroscopy with attenuated total reflectance (FTIR-ATR), mechanical testing and scanning electron microscopy (SEM). The new TPS/BC nanocomposites exhibit strong interfacial adhesion, improved thermal behavior, water stability and enhanced mechanical properties. These findings support the applications of starch in the packaging industry.
publishDate 2014
dc.date.none.fl_str_mv 2014-09-01
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=S0103-50532014000900009
url http://old.scielo.br/scielo.php?script=sci_arttext&pid=S0103-50532014000900009
dc.language.iso.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv 10.5935/0103-5053.20140146
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 Sociedade Brasileira de Química
publisher.none.fl_str_mv Sociedade Brasileira de Química
dc.source.none.fl_str_mv Journal of the Brazilian Chemical Society v.25 n.9 2014
reponame:Journal of the Brazilian Chemical Society (Online)
instname:Sociedade Brasileira de Química (SBQ)
instacron:SBQ
instname_str Sociedade Brasileira de Química (SBQ)
instacron_str SBQ
institution SBQ
reponame_str Journal of the Brazilian Chemical Society (Online)
collection Journal of the Brazilian Chemical Society (Online)
repository.name.fl_str_mv Journal of the Brazilian Chemical Society (Online) - Sociedade Brasileira de Química (SBQ)
repository.mail.fl_str_mv ||office@jbcs.sbq.org.br
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