Uso de metodologias alternativas na secagem de diferentes materiais visando a preservação de compostos bioativos
Autor(a) principal: | |
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Data de Publicação: | 2019 |
Tipo de documento: | Tese |
Idioma: | por |
Título da fonte: | Repositório Institucional da UFU |
Texto Completo: | https://repositorio.ufu.br/handle/123456789/25463 http://dx.doi.org/10.14393/ufu.te.2019.2066 |
Resumo: | The use of alternative drying methodologies has increased considerably in recent years, since these techniques are energetically efficient, produce reduced environmental impact and materials with superior final quality when compared to conventional drying methods. In this work, we studied the use of alternative techniques in the drying of three materials that have attracted recently attention due their potential: the microalga Spirulina platensis, camu-camu (Myrciaria dubia), and brewer’s spent grain. These materials were subjected to refractance window (RW) drying, rotary drying with inert bed (SRRI), infrared and microwave (continuous and intermittent) drying. The effects of the process variables of each method were evaluated on the moisture removal process and in the content of bioactive compounds (total phenolics, total flavonoids, citric and ascorbic acid, and phycocyanin) in the products after drying. Analyzing the drying of Spirulina, the SRRI was the best methodology, once we obtained a powder product with good appearance, high Drying Yields and content of bioactive compounds near those found in fresh microalga, since the process occurs under adequate conditions of Temperature, Intermittence, Filling Degree and Rotation. The microalga drying in RW also showed good results, obtaining high bioactive compounds content in conditions of intermediate temperatures and high drying times, as six hours. However, the Spirulina showed stickiness on the film surface, became difficult its removal after the drying. The use of infrared and microwave in drying of microalga reduced considerably the bioactive compounds present in the samples, even with the use of the intermittency method. The use of SRRI in the drying of camu-camu has proved to be efficient, if added in the process the maltodextrin on specific concentrations, since the dried product showed stickiness. Under suitable conditions of Temperature, Filling Degree and Rotation it was possible to obtain satisfactory Drying Yields and elevated bioactive compounds content. The brewer’s spent grain drying in RW also showed good results, despite the reduction in bioactive compounds levels after drying, showing this method as an interesting alternative for the use of this material. |
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Uso de metodologias alternativas na secagem de diferentes materiais visando a preservação de compostos bioativosUse of alternative methodologies in the drying of different materials aiming the preservation of bioactive compoundsSecagemSpirulina platensisCamu-camuBagaço de malteCompostos bioativosDryingSpirulina platensisCamu-camuBrewer’s spent grainBioactive compoundsCNPQ::ENGENHARIAS::ENGENHARIA QUIMICA::PROCESSOS INDUSTRIAIS DE ENGENHARIA QUIMICAThe use of alternative drying methodologies has increased considerably in recent years, since these techniques are energetically efficient, produce reduced environmental impact and materials with superior final quality when compared to conventional drying methods. In this work, we studied the use of alternative techniques in the drying of three materials that have attracted recently attention due their potential: the microalga Spirulina platensis, camu-camu (Myrciaria dubia), and brewer’s spent grain. These materials were subjected to refractance window (RW) drying, rotary drying with inert bed (SRRI), infrared and microwave (continuous and intermittent) drying. The effects of the process variables of each method were evaluated on the moisture removal process and in the content of bioactive compounds (total phenolics, total flavonoids, citric and ascorbic acid, and phycocyanin) in the products after drying. Analyzing the drying of Spirulina, the SRRI was the best methodology, once we obtained a powder product with good appearance, high Drying Yields and content of bioactive compounds near those found in fresh microalga, since the process occurs under adequate conditions of Temperature, Intermittence, Filling Degree and Rotation. The microalga drying in RW also showed good results, obtaining high bioactive compounds content in conditions of intermediate temperatures and high drying times, as six hours. However, the Spirulina showed stickiness on the film surface, became difficult its removal after the drying. The use of infrared and microwave in drying of microalga reduced considerably the bioactive compounds present in the samples, even with the use of the intermittency method. The use of SRRI in the drying of camu-camu has proved to be efficient, if added in the process the maltodextrin on specific concentrations, since the dried product showed stickiness. Under suitable conditions of Temperature, Filling Degree and Rotation it was possible to obtain satisfactory Drying Yields and elevated bioactive compounds content. The brewer’s spent grain drying in RW also showed good results, despite the reduction in bioactive compounds levels after drying, showing this method as an interesting alternative for the use of this material.CAPES - Coordenação de Aperfeiçoamento de Pessoal de Nível SuperiorCNPq - Conselho Nacional de Desenvolvimento Científico e TecnológicoFAPEMIG - Fundação de Amparo a Pesquisa do Estado de Minas GeraisTese (Doutorado)O uso de metodologias alternativas de secagem tem aumentado consideravelmente nos últimos anos, uma vez que as mesmas tendem a ser energeticamente eficientes, de impacto ambiental reduzido e geram produtos de qualidade superior quando comparadas às técnicas convencionais. Neste trabalho avaliou-se o uso de técnicas alternativas na secagem de três materiais que têm despertado recente atenção devido ao seu potencial de aproveitamento: a microalga Spirulina platensis, o camu-camu (Myrciaria dubia) e o bagaço de malte. Esses materiais foram submetidos à secagem por refractance window (RW), secador rotatório com recheio de inertes (SRRI), infravermelho e micro-ondas (de forma contínua e intermitente). Os efeitos das variáveis operacionais de cada método foram avaliados sobre o processo de remoção de umidade e nos teores de compostos bioativos (fenólicos totais, flavonoides totais, ácido cítrico, ácido ascórbico e ficocianina) presentes após a secagem. Analisando-se a secagem da Spirulina, o SRRI foi a metodologia que apresentou os melhores resultados, produzindo um produto em pó de bom aspecto visual, com elevados Rendimentos de Secagem e teores de compostos bioativos próximos aos encontrados no material in natura, desde que a secagem ocorra em condições adequadas de Temperatura, Intermitência, grau de Enchimento e Rotação. O uso do refractance window também apresentou bons resultados, obtendo-se elevados teores de bioativos na microalga em condições de temperaturas intermediárias e tempos de secagem por volta de seis horas. Entretanto, a Spirulina se mostrou altamente aderente ao filme utilizado, dificultando sua remoção ao término do processo. A secagem da microalga por infravermelho e micro-ondas, não foi eficiente, uma vez que reduziu consideravelmente os compostos presentes na mesma, mesmo com o uso da intermitência. O uso do SRRI na secagem do camu-camu se mostrou eficiente, desde que seja adicionada maltodextrina em concentrações específicas ao material, uma vez que o produto desidratado apresentou pegajosidade. Em condições adequadas de Temperatura, Enchimento e Rotação foi possível obter Rendimentos de Secagem e teores de bioativos satisfatórios. A secagem do bagaço de malte por RW também apresentou bons resultados, apesar da redução observada nos compostos bioativos, tornando-se uma alternativa interessante para o aproveitamento desse material.Universidade Federal de UberlândiaBrasilPrograma de Pós-graduação em Engenharia QuímicaBarrozo, Marcos Antonio de Souzahttp://lattes.cnpq.br/7024983341494297Duarte, Claudio Robertohttp://lattes.cnpq.br/8399881058983357Ataíde, Carlos Henriquehttp://lattes.cnpq.br/1181660568548980Santana, Ricardo Corrêa dehttp://lattes.cnpq.br/6520212712645610Silvério, Beatriz Cristinahttp://lattes.cnpq.br/3183875510988475Taham, Thiagohttp://lattes.cnpq.br/9340082326893212Silva, Neiton Carlos da2019-06-24T15:24:12Z2019-06-24T15:24:12Z2019-06-17info:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/doctoralThesisapplication/pdfSILVA, Neiton Carlos da. Uso de metodologias alternativas na secagem de diferentes materiais visando a preservação de compostos bioativos. 2019. 209 f. Tese (Doutorado em Engenharia Química) - Universidade Federal de Uberlândia, Uberlândia, 2019. DOI http://dx.doi.org/10.14393/ufu.te.2019.2066https://repositorio.ufu.br/handle/123456789/25463http://dx.doi.org/10.14393/ufu.te.2019.2066porinfo:eu-repo/semantics/openAccessreponame:Repositório Institucional da UFUinstname:Universidade Federal de Uberlândia (UFU)instacron:UFU2021-09-16T20:15:43Zoai:repositorio.ufu.br:123456789/25463Repositório InstitucionalONGhttp://repositorio.ufu.br/oai/requestdiinf@dirbi.ufu.bropendoar:2021-09-16T20:15:43Repositório Institucional da UFU - Universidade Federal de Uberlândia (UFU)false |
dc.title.none.fl_str_mv |
Uso de metodologias alternativas na secagem de diferentes materiais visando a preservação de compostos bioativos Use of alternative methodologies in the drying of different materials aiming the preservation of bioactive compounds |
title |
Uso de metodologias alternativas na secagem de diferentes materiais visando a preservação de compostos bioativos |
spellingShingle |
Uso de metodologias alternativas na secagem de diferentes materiais visando a preservação de compostos bioativos Silva, Neiton Carlos da Secagem Spirulina platensis Camu-camu Bagaço de malte Compostos bioativos Drying Spirulina platensis Camu-camu Brewer’s spent grain Bioactive compounds CNPQ::ENGENHARIAS::ENGENHARIA QUIMICA::PROCESSOS INDUSTRIAIS DE ENGENHARIA QUIMICA |
title_short |
Uso de metodologias alternativas na secagem de diferentes materiais visando a preservação de compostos bioativos |
title_full |
Uso de metodologias alternativas na secagem de diferentes materiais visando a preservação de compostos bioativos |
title_fullStr |
Uso de metodologias alternativas na secagem de diferentes materiais visando a preservação de compostos bioativos |
title_full_unstemmed |
Uso de metodologias alternativas na secagem de diferentes materiais visando a preservação de compostos bioativos |
title_sort |
Uso de metodologias alternativas na secagem de diferentes materiais visando a preservação de compostos bioativos |
author |
Silva, Neiton Carlos da |
author_facet |
Silva, Neiton Carlos da |
author_role |
author |
dc.contributor.none.fl_str_mv |
Barrozo, Marcos Antonio de Souza http://lattes.cnpq.br/7024983341494297 Duarte, Claudio Roberto http://lattes.cnpq.br/8399881058983357 Ataíde, Carlos Henrique http://lattes.cnpq.br/1181660568548980 Santana, Ricardo Corrêa de http://lattes.cnpq.br/6520212712645610 Silvério, Beatriz Cristina http://lattes.cnpq.br/3183875510988475 Taham, Thiago http://lattes.cnpq.br/9340082326893212 |
dc.contributor.author.fl_str_mv |
Silva, Neiton Carlos da |
dc.subject.por.fl_str_mv |
Secagem Spirulina platensis Camu-camu Bagaço de malte Compostos bioativos Drying Spirulina platensis Camu-camu Brewer’s spent grain Bioactive compounds CNPQ::ENGENHARIAS::ENGENHARIA QUIMICA::PROCESSOS INDUSTRIAIS DE ENGENHARIA QUIMICA |
topic |
Secagem Spirulina platensis Camu-camu Bagaço de malte Compostos bioativos Drying Spirulina platensis Camu-camu Brewer’s spent grain Bioactive compounds CNPQ::ENGENHARIAS::ENGENHARIA QUIMICA::PROCESSOS INDUSTRIAIS DE ENGENHARIA QUIMICA |
description |
The use of alternative drying methodologies has increased considerably in recent years, since these techniques are energetically efficient, produce reduced environmental impact and materials with superior final quality when compared to conventional drying methods. In this work, we studied the use of alternative techniques in the drying of three materials that have attracted recently attention due their potential: the microalga Spirulina platensis, camu-camu (Myrciaria dubia), and brewer’s spent grain. These materials were subjected to refractance window (RW) drying, rotary drying with inert bed (SRRI), infrared and microwave (continuous and intermittent) drying. The effects of the process variables of each method were evaluated on the moisture removal process and in the content of bioactive compounds (total phenolics, total flavonoids, citric and ascorbic acid, and phycocyanin) in the products after drying. Analyzing the drying of Spirulina, the SRRI was the best methodology, once we obtained a powder product with good appearance, high Drying Yields and content of bioactive compounds near those found in fresh microalga, since the process occurs under adequate conditions of Temperature, Intermittence, Filling Degree and Rotation. The microalga drying in RW also showed good results, obtaining high bioactive compounds content in conditions of intermediate temperatures and high drying times, as six hours. However, the Spirulina showed stickiness on the film surface, became difficult its removal after the drying. The use of infrared and microwave in drying of microalga reduced considerably the bioactive compounds present in the samples, even with the use of the intermittency method. The use of SRRI in the drying of camu-camu has proved to be efficient, if added in the process the maltodextrin on specific concentrations, since the dried product showed stickiness. Under suitable conditions of Temperature, Filling Degree and Rotation it was possible to obtain satisfactory Drying Yields and elevated bioactive compounds content. The brewer’s spent grain drying in RW also showed good results, despite the reduction in bioactive compounds levels after drying, showing this method as an interesting alternative for the use of this material. |
publishDate |
2019 |
dc.date.none.fl_str_mv |
2019-06-24T15:24:12Z 2019-06-24T15:24:12Z 2019-06-17 |
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.uri.fl_str_mv |
SILVA, Neiton Carlos da. Uso de metodologias alternativas na secagem de diferentes materiais visando a preservação de compostos bioativos. 2019. 209 f. Tese (Doutorado em Engenharia Química) - Universidade Federal de Uberlândia, Uberlândia, 2019. DOI http://dx.doi.org/10.14393/ufu.te.2019.2066 https://repositorio.ufu.br/handle/123456789/25463 http://dx.doi.org/10.14393/ufu.te.2019.2066 |
identifier_str_mv |
SILVA, Neiton Carlos da. Uso de metodologias alternativas na secagem de diferentes materiais visando a preservação de compostos bioativos. 2019. 209 f. Tese (Doutorado em Engenharia Química) - Universidade Federal de Uberlândia, Uberlândia, 2019. DOI http://dx.doi.org/10.14393/ufu.te.2019.2066 |
url |
https://repositorio.ufu.br/handle/123456789/25463 http://dx.doi.org/10.14393/ufu.te.2019.2066 |
dc.language.iso.fl_str_mv |
por |
language |
por |
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info:eu-repo/semantics/openAccess |
eu_rights_str_mv |
openAccess |
dc.format.none.fl_str_mv |
application/pdf |
dc.publisher.none.fl_str_mv |
Universidade Federal de Uberlândia Brasil Programa de Pós-graduação em Engenharia Química |
publisher.none.fl_str_mv |
Universidade Federal de Uberlândia Brasil Programa de Pós-graduação em Engenharia Química |
dc.source.none.fl_str_mv |
reponame:Repositório Institucional da UFU instname:Universidade Federal de Uberlândia (UFU) instacron:UFU |
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Universidade Federal de Uberlândia (UFU) |
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UFU |
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UFU |
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Repositório Institucional da UFU |
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Repositório Institucional da UFU |
repository.name.fl_str_mv |
Repositório Institucional da UFU - Universidade Federal de Uberlândia (UFU) |
repository.mail.fl_str_mv |
diinf@dirbi.ufu.br |
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1805569629128491008 |