Stable microfluidized bacterial cellulose suspension
Autor(a) principal: | |
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Data de Publicação: | 2019 |
Outros Autores: | , , , , , |
Tipo de documento: | Artigo |
Idioma: | eng |
Título da fonte: | Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) |
Texto Completo: | http://hdl.handle.net/1822/60630 |
Resumo: | In this work, nanofibrillated suspensions of bacterial cellulose (BC) were produced via microfluidization. The effects of the size of the openings of the microfluidizer chamber and ultrasonication on the nanofibril properties were evaluated. The results of the X-ray diffraction analysis indicated a considerable reduction in BC crystallinity (8665%) and crystallite size (5.84.0 nm) after microfluidization and ultrasonication. Thermal analysis showed a remarkable reduction from 337 to 283 °C in the initial temperature of degradation along the several steps of BC deconstruction. Moreover, infrared analysis indicated that both processes led to an increase in the I content (4366%) of the fibers. Morphological analysis showed that the fibrillation process used exposed the internal faces of the ribbon-like nanofibrils, and thus, increased the surface area of the cellulose network, and produced fibers with a high aspect ratio (L/d). A thermally stable nanofibrillated suspension could be obtained by adding carboxymethyl cellulose as a simple and effective way to maintain cellulose fibers dispersed in the solution during sterilization by autoclaving. |
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Stable microfluidized bacterial cellulose suspensionBacterial celluloseNanofibrillated celluloseMicrofluidizationSterilizationEngenharia e Tecnologia::Biotecnologia IndustrialScience & TechnologyIn this work, nanofibrillated suspensions of bacterial cellulose (BC) were produced via microfluidization. The effects of the size of the openings of the microfluidizer chamber and ultrasonication on the nanofibril properties were evaluated. The results of the X-ray diffraction analysis indicated a considerable reduction in BC crystallinity (8665%) and crystallite size (5.84.0 nm) after microfluidization and ultrasonication. Thermal analysis showed a remarkable reduction from 337 to 283 °C in the initial temperature of degradation along the several steps of BC deconstruction. Moreover, infrared analysis indicated that both processes led to an increase in the I content (4366%) of the fibers. Morphological analysis showed that the fibrillation process used exposed the internal faces of the ribbon-like nanofibrils, and thus, increased the surface area of the cellulose network, and produced fibers with a high aspect ratio (L/d). A thermally stable nanofibrillated suspension could be obtained by adding carboxymethyl cellulose as a simple and effective way to maintain cellulose fibers dispersed in the solution during sterilization by autoclaving.Coordination for the Improvement of Higher Education Personnel (CAPES, Brazil), the National Counsel of Technological and Scientific Development (CNPq, Brazil), the Foundation for Science and Technology (FCT, Portugal), and also the Embrapa Tropical Agroindustry. This research study was also supported by the international collaboration Program FCT/CAPES (No. 99999.008530/2014-09)info:eu-repo/semantics/publishedVersionSpringerUniversidade do MinhoAndrade, Fabia K.Morais, João Paulo S.Muniz, Celli R.Nascimento, José Heriberto O.Vieira, Rodrigo S.Gama, F. M.Rosa, Morsyleide F.2019-072019-07-01T00:00:00Zinfo:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/articleapplication/pdfhttp://hdl.handle.net/1822/60630engAndrade, Fabia K.; Morais, João Paulo S.; Muniz, Celli R.; Nascimento, José Heriberto O.; Vieira, Rodrigo S.; Gama, F. M.; Rosa, Morsyleide F., Stable microfluidized bacterial cellulose suspension. Cellulose, 26(10), 5851-5864, 20190969-02391572-882X10.1007/s10570-019-02512-yhttps://link.springer.com/article/10.1007/s10570-019-02512-y#citeasinfo:eu-repo/semantics/openAccessreponame:Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos)instname:Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informaçãoinstacron:RCAAP2023-07-21T12:44:30Zoai:repositorium.sdum.uminho.pt:1822/60630Portal AgregadorONGhttps://www.rcaap.pt/oai/openaireopendoar:71602024-03-19T19:42:12.026071Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) - Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informaçãofalse |
dc.title.none.fl_str_mv |
Stable microfluidized bacterial cellulose suspension |
title |
Stable microfluidized bacterial cellulose suspension |
spellingShingle |
Stable microfluidized bacterial cellulose suspension Andrade, Fabia K. Bacterial cellulose Nanofibrillated cellulose Microfluidization Sterilization Engenharia e Tecnologia::Biotecnologia Industrial Science & Technology |
title_short |
Stable microfluidized bacterial cellulose suspension |
title_full |
Stable microfluidized bacterial cellulose suspension |
title_fullStr |
Stable microfluidized bacterial cellulose suspension |
title_full_unstemmed |
Stable microfluidized bacterial cellulose suspension |
title_sort |
Stable microfluidized bacterial cellulose suspension |
author |
Andrade, Fabia K. |
author_facet |
Andrade, Fabia K. Morais, João Paulo S. Muniz, Celli R. Nascimento, José Heriberto O. Vieira, Rodrigo S. Gama, F. M. Rosa, Morsyleide F. |
author_role |
author |
author2 |
Morais, João Paulo S. Muniz, Celli R. Nascimento, José Heriberto O. Vieira, Rodrigo S. Gama, F. M. Rosa, Morsyleide F. |
author2_role |
author author author author author author |
dc.contributor.none.fl_str_mv |
Universidade do Minho |
dc.contributor.author.fl_str_mv |
Andrade, Fabia K. Morais, João Paulo S. Muniz, Celli R. Nascimento, José Heriberto O. Vieira, Rodrigo S. Gama, F. M. Rosa, Morsyleide F. |
dc.subject.por.fl_str_mv |
Bacterial cellulose Nanofibrillated cellulose Microfluidization Sterilization Engenharia e Tecnologia::Biotecnologia Industrial Science & Technology |
topic |
Bacterial cellulose Nanofibrillated cellulose Microfluidization Sterilization Engenharia e Tecnologia::Biotecnologia Industrial Science & Technology |
description |
In this work, nanofibrillated suspensions of bacterial cellulose (BC) were produced via microfluidization. The effects of the size of the openings of the microfluidizer chamber and ultrasonication on the nanofibril properties were evaluated. The results of the X-ray diffraction analysis indicated a considerable reduction in BC crystallinity (8665%) and crystallite size (5.84.0 nm) after microfluidization and ultrasonication. Thermal analysis showed a remarkable reduction from 337 to 283 °C in the initial temperature of degradation along the several steps of BC deconstruction. Moreover, infrared analysis indicated that both processes led to an increase in the I content (4366%) of the fibers. Morphological analysis showed that the fibrillation process used exposed the internal faces of the ribbon-like nanofibrils, and thus, increased the surface area of the cellulose network, and produced fibers with a high aspect ratio (L/d). A thermally stable nanofibrillated suspension could be obtained by adding carboxymethyl cellulose as a simple and effective way to maintain cellulose fibers dispersed in the solution during sterilization by autoclaving. |
publishDate |
2019 |
dc.date.none.fl_str_mv |
2019-07 2019-07-01T00:00:00Z |
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://hdl.handle.net/1822/60630 |
url |
http://hdl.handle.net/1822/60630 |
dc.language.iso.fl_str_mv |
eng |
language |
eng |
dc.relation.none.fl_str_mv |
Andrade, Fabia K.; Morais, João Paulo S.; Muniz, Celli R.; Nascimento, José Heriberto O.; Vieira, Rodrigo S.; Gama, F. M.; Rosa, Morsyleide F., Stable microfluidized bacterial cellulose suspension. Cellulose, 26(10), 5851-5864, 2019 0969-0239 1572-882X 10.1007/s10570-019-02512-y https://link.springer.com/article/10.1007/s10570-019-02512-y#citeas |
dc.rights.driver.fl_str_mv |
info:eu-repo/semantics/openAccess |
eu_rights_str_mv |
openAccess |
dc.format.none.fl_str_mv |
application/pdf |
dc.publisher.none.fl_str_mv |
Springer |
publisher.none.fl_str_mv |
Springer |
dc.source.none.fl_str_mv |
reponame:Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) instname:Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informação instacron:RCAAP |
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Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informação |
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RCAAP |
institution |
RCAAP |
reponame_str |
Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) |
collection |
Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) |
repository.name.fl_str_mv |
Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) - Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informação |
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1799132973851738112 |