Preparação, caracterização e otimização de biocompósitos poliméricos comestíveis reforçados com fibras vegetais
Autor(a) principal: | |
---|---|
Data de Publicação: | 2017 |
Tipo de documento: | Tese |
Idioma: | por |
Título da fonte: | Repositório Institucional da UFSCAR |
Texto Completo: | https://repositorio.ufscar.br/handle/ufscar/10096 |
Resumo: | The ever-growing environmental concern arising from the unrestricted exploitation of fossil raw materials for the massive production of non-biodegradable materials, guided by the rapid increase in the world population as well as in the demand for foodstuffs, encourages research on alternative materials from renewable sources. Herein, edible biocomposites based on peach puree or carrot processing waste (CPW) were produced. Hydroxypropyl methylcellulose (HPMC) and cellulose fibers were added to play ligand and mechanical reinforcement roles, respectively. Previously, the film-forming components were comprehensively studied separately. The effects of HPMC chemical structure were investigated in order to choose a grade – Methocel® E4M – that leads to suitable physical-mechanical performance. Cellulose fibers were miniaturized by high-pressure microfluidization and its dispersion within the HPMC matrix was optimized through a central composite design (CCD). Seven microfluidization cicles were found to be ideal for the mechanical reinforcement of the matrix. Once the behaviors of miniaturized cellulose fibers, peach puree, and CPW in the HPMC matrix were elucidated, ternary mixture designs were carried out to set up correlations among biocomposites’ formulations and their mechanical properties. Optimized formulations were used to produce (i) biodegradable biocomposites featuring suitable physical-mechanical properties for packaging applications – using CPW, HPMC, and cellulose fibers – and (ii) edible bioplastics having unique sensory and nutritional characteristics by means of combining peach puree and HPMC. Finally, the production protocols of both materials were successfully scaled-up towards a pilot scale through a continuous casting approach, being the influence of the processing protocols on materials’ properties investigated. |
id |
SCAR_22413b9e2797829a14c0c5375f343d11 |
---|---|
oai_identifier_str |
oai:repositorio.ufscar.br:ufscar/10096 |
network_acronym_str |
SCAR |
network_name_str |
Repositório Institucional da UFSCAR |
repository_id_str |
4322 |
spelling |
Otoni, Caio GomideMattoso, Luiz Henrique Capparellihttp://lattes.cnpq.br/5839043594908917Aouada, Márcia Regina de Mourahttp://lattes.cnpq.br/2870655742911951http://lattes.cnpq.br/9403804691367376ea3add03-8f33-4a32-8ed6-ab06d15770b82018-05-21T20:19:53Z2018-05-21T20:19:53Z2017-05-19OTONI, Caio Gomide. Preparação, caracterização e otimização de biocompósitos poliméricos comestíveis reforçados com fibras vegetais. 2017. Tese (Doutorado em Ciência e Engenharia de Materiais) – Universidade Federal de São Carlos, São Carlos, 2017. Disponível em: https://repositorio.ufscar.br/handle/ufscar/10096.https://repositorio.ufscar.br/handle/ufscar/10096The ever-growing environmental concern arising from the unrestricted exploitation of fossil raw materials for the massive production of non-biodegradable materials, guided by the rapid increase in the world population as well as in the demand for foodstuffs, encourages research on alternative materials from renewable sources. Herein, edible biocomposites based on peach puree or carrot processing waste (CPW) were produced. Hydroxypropyl methylcellulose (HPMC) and cellulose fibers were added to play ligand and mechanical reinforcement roles, respectively. Previously, the film-forming components were comprehensively studied separately. The effects of HPMC chemical structure were investigated in order to choose a grade – Methocel® E4M – that leads to suitable physical-mechanical performance. Cellulose fibers were miniaturized by high-pressure microfluidization and its dispersion within the HPMC matrix was optimized through a central composite design (CCD). Seven microfluidization cicles were found to be ideal for the mechanical reinforcement of the matrix. Once the behaviors of miniaturized cellulose fibers, peach puree, and CPW in the HPMC matrix were elucidated, ternary mixture designs were carried out to set up correlations among biocomposites’ formulations and their mechanical properties. Optimized formulations were used to produce (i) biodegradable biocomposites featuring suitable physical-mechanical properties for packaging applications – using CPW, HPMC, and cellulose fibers – and (ii) edible bioplastics having unique sensory and nutritional characteristics by means of combining peach puree and HPMC. Finally, the production protocols of both materials were successfully scaled-up towards a pilot scale through a continuous casting approach, being the influence of the processing protocols on materials’ properties investigated.A crescente preocupação ambiental desencadeada pela exploração exacerbada de matérias-primas fósseis para a produção de grandes volumes de materiais não biodegradáveis, impulsionada pelo crescimento acelerado da população mundial e da demanda por alimentos, motiva a pesquisa em materiais alternativos oriundos de fontes renováveis. Neste trabalho, biocompósitos comestíveis baseados em polpa de pêssego ou resíduo do processamento mínimo de cenoura (RPMC) foram produzidos. Para tal, hidroxipropilmetilcelulose (HPMC) e fibras de celulose foram adicionados como agentes ligante e de reforço, respectivamente. Antes, porém, os componentes filmogênicos foram extensivamente estudados de forma isolada. Investigaram-se os efeitos da estrutura química da HPMC de modo a selecionar um grade adequado – Methocel® E4M – do ponto de vista de desempenho físico-mecânico. As fibras de celulose foram cominuídas por microfluidização a alta pressão – 138 MPa –, sendo sua dispersão na matriz de HPMC otimizada através de delineamento composto central rotacional (DCCR). Concluiu-se que sete é o número de ciclos de microfluidização ideal para o reforçamento mecânico da matriz. Após compreender os efeitos isolados das fibras de celulose cominuídas, da polpa de pêssego e do RPMC na matriz de HPMC, experimentos de mistura ternários foram conduzidos para estabelecer correlações entre as formulações de biocompósitos e suas propriedades mecânicas. Formulações otimizadas foram selecionadas para produzir (i) biocompósitos biodegradáveis com desempenhos físico-mecânicos adequados à aplicações em embalagens, utilizando RPMC, HPMC e fibras de celulose, e (ii) bioplásticos comestíveis com propriedades nutricionais e sensoriais únicas através da combinação de polpa de pêssego e HPMC. Por fim, a produção de ambos os materiais foi escalonada com sucesso para a escala piloto por meio de uma abordagem contínua de casting, sendo a influência do processamento nas propriedades dos materiais finais estudada.Fundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP)FAPESP: 14/23098-9FAPESP: 13/14366-7porUniversidade Federal de São CarlosCâmpus São CarlosPrograma de Pós-Graduação em Ciência e Engenharia de Materiais - PPGCEMUFSCarFilmes comestíveisPolímeros biodegradáveisCompósitos poliméricosResíduos agroindustriaisNanoceluloseEdible filmsBiodegradable polymersPolymer compositesAgroindustrial wasteNanocelluloseENGENHARIAS::ENGENHARIA DE MATERIAIS E METALURGICA::MATERIAIS NAO METALICOSPreparação, caracterização e otimização de biocompósitos poliméricos comestíveis reforçados com fibras vegetaisStudy and optimization of edible polymeric biocomposites reinforced with cellulose fibersinfo:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/doctoralThesisOnline600600cd4a0e5b-b40b-46f6-8c76-2c2bcc3239a9info:eu-repo/semantics/openAccessreponame:Repositório Institucional da UFSCARinstname:Universidade Federal de São Carlos (UFSCAR)instacron:UFSCARORIGINALTese PPGCEM - 04.pdfTese PPGCEM - 04.pdfTese, versão finalapplication/pdf4803660https://repositorio.ufscar.br/bitstream/ufscar/10096/1/Tese%20PPGCEM%20-%2004.pdf3fa2db6849fd2085e922b985ccf0d946MD51BCO carta comprovante autoarquivamento.pdfBCO carta comprovante autoarquivamento.pdfCarta comprovante assinada pelo orientadorapplication/pdf258832https://repositorio.ufscar.br/bitstream/ufscar/10096/2/BCO%20carta%20comprovante%20autoarquivamento.pdf2f31c718ce4f1ea108548eb7671f080bMD52LICENSElicense.txtlicense.txttext/plain; charset=utf-81957https://repositorio.ufscar.br/bitstream/ufscar/10096/3/license.txtae0398b6f8b235e40ad82cba6c50031dMD53TEXTTese PPGCEM - 04.pdf.txtTese PPGCEM - 04.pdf.txtExtracted texttext/plain0https://repositorio.ufscar.br/bitstream/ufscar/10096/4/Tese%20PPGCEM%20-%2004.pdf.txtd41d8cd98f00b204e9800998ecf8427eMD54BCO carta comprovante autoarquivamento.pdf.txtBCO carta comprovante autoarquivamento.pdf.txtExtracted texttext/plain1https://repositorio.ufscar.br/bitstream/ufscar/10096/5/BCO%20carta%20comprovante%20autoarquivamento.pdf.txt68b329da9893e34099c7d8ad5cb9c940MD55THUMBNAILTese PPGCEM - 04.pdf.jpgTese PPGCEM - 04.pdf.jpgIM Thumbnailimage/jpeg6343https://repositorio.ufscar.br/bitstream/ufscar/10096/6/Tese%20PPGCEM%20-%2004.pdf.jpge1527a37f26d42a9d37279e27f26a501MD56BCO carta comprovante autoarquivamento.pdf.jpgBCO carta comprovante autoarquivamento.pdf.jpgIM Thumbnailimage/jpeg12407https://repositorio.ufscar.br/bitstream/ufscar/10096/7/BCO%20carta%20comprovante%20autoarquivamento.pdf.jpgc9b647be9e26ff1ecb6941d1a8431453MD57ufscar/100962023-09-18 18:31:15.113oai:repositorio.ufscar.br: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Repositório InstitucionalPUBhttps://repositorio.ufscar.br/oai/requestopendoar:43222023-09-18T18:31:15Repositório Institucional da UFSCAR - Universidade Federal de São Carlos (UFSCAR)false |
dc.title.por.fl_str_mv |
Preparação, caracterização e otimização de biocompósitos poliméricos comestíveis reforçados com fibras vegetais |
dc.title.alternative.eng.fl_str_mv |
Study and optimization of edible polymeric biocomposites reinforced with cellulose fibers |
title |
Preparação, caracterização e otimização de biocompósitos poliméricos comestíveis reforçados com fibras vegetais |
spellingShingle |
Preparação, caracterização e otimização de biocompósitos poliméricos comestíveis reforçados com fibras vegetais Otoni, Caio Gomide Filmes comestíveis Polímeros biodegradáveis Compósitos poliméricos Resíduos agroindustriais Nanocelulose Edible films Biodegradable polymers Polymer composites Agroindustrial waste Nanocellulose ENGENHARIAS::ENGENHARIA DE MATERIAIS E METALURGICA::MATERIAIS NAO METALICOS |
title_short |
Preparação, caracterização e otimização de biocompósitos poliméricos comestíveis reforçados com fibras vegetais |
title_full |
Preparação, caracterização e otimização de biocompósitos poliméricos comestíveis reforçados com fibras vegetais |
title_fullStr |
Preparação, caracterização e otimização de biocompósitos poliméricos comestíveis reforçados com fibras vegetais |
title_full_unstemmed |
Preparação, caracterização e otimização de biocompósitos poliméricos comestíveis reforçados com fibras vegetais |
title_sort |
Preparação, caracterização e otimização de biocompósitos poliméricos comestíveis reforçados com fibras vegetais |
author |
Otoni, Caio Gomide |
author_facet |
Otoni, Caio Gomide |
author_role |
author |
dc.contributor.authorlattes.por.fl_str_mv |
http://lattes.cnpq.br/9403804691367376 |
dc.contributor.author.fl_str_mv |
Otoni, Caio Gomide |
dc.contributor.advisor1.fl_str_mv |
Mattoso, Luiz Henrique Capparelli |
dc.contributor.advisor1Lattes.fl_str_mv |
http://lattes.cnpq.br/5839043594908917 |
dc.contributor.advisor-co1.fl_str_mv |
Aouada, Márcia Regina de Moura |
dc.contributor.advisor-co1Lattes.fl_str_mv |
http://lattes.cnpq.br/2870655742911951 |
dc.contributor.authorID.fl_str_mv |
ea3add03-8f33-4a32-8ed6-ab06d15770b8 |
contributor_str_mv |
Mattoso, Luiz Henrique Capparelli Aouada, Márcia Regina de Moura |
dc.subject.por.fl_str_mv |
Filmes comestíveis Polímeros biodegradáveis Compósitos poliméricos Resíduos agroindustriais Nanocelulose |
topic |
Filmes comestíveis Polímeros biodegradáveis Compósitos poliméricos Resíduos agroindustriais Nanocelulose Edible films Biodegradable polymers Polymer composites Agroindustrial waste Nanocellulose ENGENHARIAS::ENGENHARIA DE MATERIAIS E METALURGICA::MATERIAIS NAO METALICOS |
dc.subject.eng.fl_str_mv |
Edible films Biodegradable polymers Polymer composites Agroindustrial waste Nanocellulose |
dc.subject.cnpq.fl_str_mv |
ENGENHARIAS::ENGENHARIA DE MATERIAIS E METALURGICA::MATERIAIS NAO METALICOS |
description |
The ever-growing environmental concern arising from the unrestricted exploitation of fossil raw materials for the massive production of non-biodegradable materials, guided by the rapid increase in the world population as well as in the demand for foodstuffs, encourages research on alternative materials from renewable sources. Herein, edible biocomposites based on peach puree or carrot processing waste (CPW) were produced. Hydroxypropyl methylcellulose (HPMC) and cellulose fibers were added to play ligand and mechanical reinforcement roles, respectively. Previously, the film-forming components were comprehensively studied separately. The effects of HPMC chemical structure were investigated in order to choose a grade – Methocel® E4M – that leads to suitable physical-mechanical performance. Cellulose fibers were miniaturized by high-pressure microfluidization and its dispersion within the HPMC matrix was optimized through a central composite design (CCD). Seven microfluidization cicles were found to be ideal for the mechanical reinforcement of the matrix. Once the behaviors of miniaturized cellulose fibers, peach puree, and CPW in the HPMC matrix were elucidated, ternary mixture designs were carried out to set up correlations among biocomposites’ formulations and their mechanical properties. Optimized formulations were used to produce (i) biodegradable biocomposites featuring suitable physical-mechanical properties for packaging applications – using CPW, HPMC, and cellulose fibers – and (ii) edible bioplastics having unique sensory and nutritional characteristics by means of combining peach puree and HPMC. Finally, the production protocols of both materials were successfully scaled-up towards a pilot scale through a continuous casting approach, being the influence of the processing protocols on materials’ properties investigated. |
publishDate |
2017 |
dc.date.issued.fl_str_mv |
2017-05-19 |
dc.date.accessioned.fl_str_mv |
2018-05-21T20:19:53Z |
dc.date.available.fl_str_mv |
2018-05-21T20:19:53Z |
dc.type.status.fl_str_mv |
info:eu-repo/semantics/publishedVersion |
dc.type.driver.fl_str_mv |
info:eu-repo/semantics/doctoralThesis |
format |
doctoralThesis |
status_str |
publishedVersion |
dc.identifier.citation.fl_str_mv |
OTONI, Caio Gomide. Preparação, caracterização e otimização de biocompósitos poliméricos comestíveis reforçados com fibras vegetais. 2017. Tese (Doutorado em Ciência e Engenharia de Materiais) – Universidade Federal de São Carlos, São Carlos, 2017. Disponível em: https://repositorio.ufscar.br/handle/ufscar/10096. |
dc.identifier.uri.fl_str_mv |
https://repositorio.ufscar.br/handle/ufscar/10096 |
identifier_str_mv |
OTONI, Caio Gomide. Preparação, caracterização e otimização de biocompósitos poliméricos comestíveis reforçados com fibras vegetais. 2017. Tese (Doutorado em Ciência e Engenharia de Materiais) – Universidade Federal de São Carlos, São Carlos, 2017. Disponível em: https://repositorio.ufscar.br/handle/ufscar/10096. |
url |
https://repositorio.ufscar.br/handle/ufscar/10096 |
dc.language.iso.fl_str_mv |
por |
language |
por |
dc.relation.confidence.fl_str_mv |
600 600 |
dc.relation.authority.fl_str_mv |
cd4a0e5b-b40b-46f6-8c76-2c2bcc3239a9 |
dc.rights.driver.fl_str_mv |
info:eu-repo/semantics/openAccess |
eu_rights_str_mv |
openAccess |
dc.publisher.none.fl_str_mv |
Universidade Federal de São Carlos Câmpus São Carlos |
dc.publisher.program.fl_str_mv |
Programa de Pós-Graduação em Ciência e Engenharia de Materiais - PPGCEM |
dc.publisher.initials.fl_str_mv |
UFSCar |
publisher.none.fl_str_mv |
Universidade Federal de São Carlos Câmpus São Carlos |
dc.source.none.fl_str_mv |
reponame:Repositório Institucional da UFSCAR instname:Universidade Federal de São Carlos (UFSCAR) instacron:UFSCAR |
instname_str |
Universidade Federal de São Carlos (UFSCAR) |
instacron_str |
UFSCAR |
institution |
UFSCAR |
reponame_str |
Repositório Institucional da UFSCAR |
collection |
Repositório Institucional da UFSCAR |
bitstream.url.fl_str_mv |
https://repositorio.ufscar.br/bitstream/ufscar/10096/1/Tese%20PPGCEM%20-%2004.pdf https://repositorio.ufscar.br/bitstream/ufscar/10096/2/BCO%20carta%20comprovante%20autoarquivamento.pdf https://repositorio.ufscar.br/bitstream/ufscar/10096/3/license.txt https://repositorio.ufscar.br/bitstream/ufscar/10096/4/Tese%20PPGCEM%20-%2004.pdf.txt https://repositorio.ufscar.br/bitstream/ufscar/10096/5/BCO%20carta%20comprovante%20autoarquivamento.pdf.txt https://repositorio.ufscar.br/bitstream/ufscar/10096/6/Tese%20PPGCEM%20-%2004.pdf.jpg https://repositorio.ufscar.br/bitstream/ufscar/10096/7/BCO%20carta%20comprovante%20autoarquivamento.pdf.jpg |
bitstream.checksum.fl_str_mv |
3fa2db6849fd2085e922b985ccf0d946 2f31c718ce4f1ea108548eb7671f080b ae0398b6f8b235e40ad82cba6c50031d d41d8cd98f00b204e9800998ecf8427e 68b329da9893e34099c7d8ad5cb9c940 e1527a37f26d42a9d37279e27f26a501 c9b647be9e26ff1ecb6941d1a8431453 |
bitstream.checksumAlgorithm.fl_str_mv |
MD5 MD5 MD5 MD5 MD5 MD5 MD5 |
repository.name.fl_str_mv |
Repositório Institucional da UFSCAR - Universidade Federal de São Carlos (UFSCAR) |
repository.mail.fl_str_mv |
|
_version_ |
1802136341695168512 |