CELLULOSE NANOCRYSTALS FROM BACTERIAL CELLULOSE

Detalhes bibliográficos
Autor(a) principal: Lima, Lais R. [UNESP]
Data de Publicação: 2015
Outros Autores: Santos, Daniele B. [UNESP], Santos, Moliria V. [UNESP], Barud, Hernane S. [UNESP], Henrique, Mariana A., Pasquini, Daniel, Pecoraro, Edison [UNESP], Ribeiro, Sidney J. L. [UNESP]
Tipo de documento: Artigo
Idioma: por
Título da fonte: Repositório Institucional da UNESP
Texto Completo: http://dx.doi.org/10.5935/0100-4042.20150131
http://hdl.handle.net/11449/165005
Resumo: Bacterial cellulose produced from Gluconacetobacter xilinus was used to produce cellulose nanocrystals by sulfuric acid hydrolysis. Hydrolysis was performed with 64% sulfuric acid at 50 degrees C with the hydrolysis time ranging between 5 and 90 min. The production of nanocrystals was observed to have size distributions that were dependent on hydrolysis times up to 10 min, after which time the suspensions showed distributions closer in size. Results from thermal analysis and X-ray diffraction showed that the amorphous cellulose was removed, leaving only the crystalline portion. Self-supported films were formed from the suspension of nanocrystals and had iridescence characteristics. The films were characterized by microscopy measures and specular reflectance.
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spelling CELLULOSE NANOCRYSTALS FROM BACTERIAL CELLULOSEbacterial cellulosenanocrystalshydrolysis timeiridescent filmsBacterial cellulose produced from Gluconacetobacter xilinus was used to produce cellulose nanocrystals by sulfuric acid hydrolysis. Hydrolysis was performed with 64% sulfuric acid at 50 degrees C with the hydrolysis time ranging between 5 and 90 min. The production of nanocrystals was observed to have size distributions that were dependent on hydrolysis times up to 10 min, after which time the suspensions showed distributions closer in size. Results from thermal analysis and X-ray diffraction showed that the amorphous cellulose was removed, leaving only the crystalline portion. Self-supported films were formed from the suspension of nanocrystals and had iridescence characteristics. The films were characterized by microscopy measures and specular reflectance.Univ Estadual Paulista, Inst Quim, Araraquara, SP, BrazilCtr Univ Araraquara, Araraquara, SP, BrazilUniv Fed Uberlandia, Inst Quim, BR-38400 Uberlandia, MG, BrazilUniv Estadual Paulista, Inst Quim, Araraquara, SP, BrazilSoc Brasileira QuimicaUniversidade Estadual Paulista (Unesp)Ctr Univ AraraquaraUniversidade Federal de Uberlândia (UFU)Lima, Lais R. [UNESP]Santos, Daniele B. [UNESP]Santos, Moliria V. [UNESP]Barud, Hernane S. [UNESP]Henrique, Mariana A.Pasquini, DanielPecoraro, Edison [UNESP]Ribeiro, Sidney J. L. [UNESP]2018-11-27T06:00:13Z2018-11-27T06:00:13Z2015-11-01info:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/article1140-1147application/pdfhttp://dx.doi.org/10.5935/0100-4042.20150131Quimica Nova. Sao Paulo: Soc Brasileira Quimica, v. 38, n. 9, p. 1140-1147, 2015.0100-4042http://hdl.handle.net/11449/16500510.5935/0100-4042.20150131S0100-40422015000901140WOS:000366634200002S0100-40422015000901140.pdf5282584912774370000-0002-5049-8797Web of Sciencereponame:Repositório Institucional da UNESPinstname:Universidade Estadual Paulista (UNESP)instacron:UNESPporQuimica Nova0,255info:eu-repo/semantics/openAccess2024-01-17T06:22:38Zoai:repositorio.unesp.br:11449/165005Repositório InstitucionalPUBhttp://repositorio.unesp.br/oai/requestopendoar:29462024-01-17T06:22:38Repositório Institucional da UNESP - Universidade Estadual Paulista (UNESP)false
dc.title.none.fl_str_mv CELLULOSE NANOCRYSTALS FROM BACTERIAL CELLULOSE
title CELLULOSE NANOCRYSTALS FROM BACTERIAL CELLULOSE
spellingShingle CELLULOSE NANOCRYSTALS FROM BACTERIAL CELLULOSE
Lima, Lais R. [UNESP]
bacterial cellulose
nanocrystals
hydrolysis time
iridescent films
title_short CELLULOSE NANOCRYSTALS FROM BACTERIAL CELLULOSE
title_full CELLULOSE NANOCRYSTALS FROM BACTERIAL CELLULOSE
title_fullStr CELLULOSE NANOCRYSTALS FROM BACTERIAL CELLULOSE
title_full_unstemmed CELLULOSE NANOCRYSTALS FROM BACTERIAL CELLULOSE
title_sort CELLULOSE NANOCRYSTALS FROM BACTERIAL CELLULOSE
author Lima, Lais R. [UNESP]
author_facet Lima, Lais R. [UNESP]
Santos, Daniele B. [UNESP]
Santos, Moliria V. [UNESP]
Barud, Hernane S. [UNESP]
Henrique, Mariana A.
Pasquini, Daniel
Pecoraro, Edison [UNESP]
Ribeiro, Sidney J. L. [UNESP]
author_role author
author2 Santos, Daniele B. [UNESP]
Santos, Moliria V. [UNESP]
Barud, Hernane S. [UNESP]
Henrique, Mariana A.
Pasquini, Daniel
Pecoraro, Edison [UNESP]
Ribeiro, Sidney J. L. [UNESP]
author2_role author
author
author
author
author
author
author
dc.contributor.none.fl_str_mv Universidade Estadual Paulista (Unesp)
Ctr Univ Araraquara
Universidade Federal de Uberlândia (UFU)
dc.contributor.author.fl_str_mv Lima, Lais R. [UNESP]
Santos, Daniele B. [UNESP]
Santos, Moliria V. [UNESP]
Barud, Hernane S. [UNESP]
Henrique, Mariana A.
Pasquini, Daniel
Pecoraro, Edison [UNESP]
Ribeiro, Sidney J. L. [UNESP]
dc.subject.por.fl_str_mv bacterial cellulose
nanocrystals
hydrolysis time
iridescent films
topic bacterial cellulose
nanocrystals
hydrolysis time
iridescent films
description Bacterial cellulose produced from Gluconacetobacter xilinus was used to produce cellulose nanocrystals by sulfuric acid hydrolysis. Hydrolysis was performed with 64% sulfuric acid at 50 degrees C with the hydrolysis time ranging between 5 and 90 min. The production of nanocrystals was observed to have size distributions that were dependent on hydrolysis times up to 10 min, after which time the suspensions showed distributions closer in size. Results from thermal analysis and X-ray diffraction showed that the amorphous cellulose was removed, leaving only the crystalline portion. Self-supported films were formed from the suspension of nanocrystals and had iridescence characteristics. The films were characterized by microscopy measures and specular reflectance.
publishDate 2015
dc.date.none.fl_str_mv 2015-11-01
2018-11-27T06:00:13Z
2018-11-27T06:00:13Z
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/10.5935/0100-4042.20150131
Quimica Nova. Sao Paulo: Soc Brasileira Quimica, v. 38, n. 9, p. 1140-1147, 2015.
0100-4042
http://hdl.handle.net/11449/165005
10.5935/0100-4042.20150131
S0100-40422015000901140
WOS:000366634200002
S0100-40422015000901140.pdf
528258491277437
0000-0002-5049-8797
url http://dx.doi.org/10.5935/0100-4042.20150131
http://hdl.handle.net/11449/165005
identifier_str_mv Quimica Nova. Sao Paulo: Soc Brasileira Quimica, v. 38, n. 9, p. 1140-1147, 2015.
0100-4042
10.5935/0100-4042.20150131
S0100-40422015000901140
WOS:000366634200002
S0100-40422015000901140.pdf
528258491277437
0000-0002-5049-8797
dc.language.iso.fl_str_mv por
language por
dc.relation.none.fl_str_mv Quimica Nova
0,255
dc.rights.driver.fl_str_mv info:eu-repo/semantics/openAccess
eu_rights_str_mv openAccess
dc.format.none.fl_str_mv 1140-1147
application/pdf
dc.publisher.none.fl_str_mv Soc Brasileira Quimica
publisher.none.fl_str_mv Soc Brasileira Quimica
dc.source.none.fl_str_mv Web of Science
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_ 1799965641426337792

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