Desenvolvimento e caracterização de cápsulas probióticas contendo Lactobacillus Rhamnosus
Autor(a) principal: | |
---|---|
Data de Publicação: | 2016 |
Tipo de documento: | Dissertação |
Idioma: | por |
Título da fonte: | Biblioteca Digital de Teses e Dissertações da UFRPE |
Texto Completo: | http://www.tede2.ufrpe.br:8080/tede2/handle/tede2/7039 |
Resumo: | Encapsulation is a technique that can be used for the protection of probiotics, conferring resistance to the acidic environment of the gastrointestinal tract allowing its use in fermented milk products. The present study had as objective evaluates the best encapsulation concentrations of L. rhamnosus using alginate of sodium, pectin and gelatin. Two experimental designs were conducted to capsules containing alginate and gelatin and pectin and gelatin. The variables investigated were concentrations of polymer and the dependent variable was the concentration of viable cells in the capsules. The highest concentration of viable cells (4.2 x 109 CFU/g) was achieved for concentrations of 1 % alginate and 0.1 % gelatin, whereas the concentration of alginate was variable that affected the response variable most significantly, reaching a negative estimated effect of -4.59. Statistical evaluation of the results obtained with microcapsules of pectin was not satisfactory. Results of IR spectra show that the three samples that were analyzed contain the alginate. The spectra shows peaks due to O−H group in the region of 3400−3454 cm−1. The spectra of Microcapsules shows a peak between 1637 cm−1 and 1639 cm−1 confirming the presence of the functional group –CONH2 that is present in the gelatin, whereas pure alginate does not show this peak. Thermal analysis of the material indicates a glass transition temperature (Tg) above the storage temperature of the microcapsules, which ensures the crystallization of the microcapsules. After 120 days of storage under refrigeration capsules have reached the concentration of 105UFC/mL, still being suitable for incorporation in food. Regarding the incorporation of the microcapsules and the free cells in the fermented milk, the free cells obtained by addition of L. rhamnosus ATCC 7469, presented the minimum score needed for a product to be considered probiotic. The microcapsules produced by the extrusion technique with alginate as encapsulating agents were suitable for microencapsulation of these probiotics, while microcapsules obtained were not satisfactory with pectin. |
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BUENO, Luciano AvalloneFINKLER, Christine Lamenha LunaMACIEL, Maria Inês SucupiraRAMOS, Clécio SouzaFINKLER, Leandrohttp://lattes.cnpq.br/1111494244666290LOPES, Susiany Pereira2017-08-02T12:34:30Z2016-03-11LOPES, Susiany Pereira. Desenvolvimento e caracterização de cápsulas probióticas contendo Lactobacillus Rhamnosus. 2016. 103 f. Dissertação (Programa de Pós-Graduação em Química) - Universidade Federal Rural de Pernambuco, Recife.http://www.tede2.ufrpe.br:8080/tede2/handle/tede2/7039Encapsulation is a technique that can be used for the protection of probiotics, conferring resistance to the acidic environment of the gastrointestinal tract allowing its use in fermented milk products. The present study had as objective evaluates the best encapsulation concentrations of L. rhamnosus using alginate of sodium, pectin and gelatin. Two experimental designs were conducted to capsules containing alginate and gelatin and pectin and gelatin. The variables investigated were concentrations of polymer and the dependent variable was the concentration of viable cells in the capsules. The highest concentration of viable cells (4.2 x 109 CFU/g) was achieved for concentrations of 1 % alginate and 0.1 % gelatin, whereas the concentration of alginate was variable that affected the response variable most significantly, reaching a negative estimated effect of -4.59. Statistical evaluation of the results obtained with microcapsules of pectin was not satisfactory. Results of IR spectra show that the three samples that were analyzed contain the alginate. The spectra shows peaks due to O−H group in the region of 3400−3454 cm−1. The spectra of Microcapsules shows a peak between 1637 cm−1 and 1639 cm−1 confirming the presence of the functional group –CONH2 that is present in the gelatin, whereas pure alginate does not show this peak. Thermal analysis of the material indicates a glass transition temperature (Tg) above the storage temperature of the microcapsules, which ensures the crystallization of the microcapsules. After 120 days of storage under refrigeration capsules have reached the concentration of 105UFC/mL, still being suitable for incorporation in food. Regarding the incorporation of the microcapsules and the free cells in the fermented milk, the free cells obtained by addition of L. rhamnosus ATCC 7469, presented the minimum score needed for a product to be considered probiotic. The microcapsules produced by the extrusion technique with alginate as encapsulating agents were suitable for microencapsulation of these probiotics, while microcapsules obtained were not satisfactory with pectin.A encapsulação é uma técnica que pode ser empregada para a proteção de probióticos, conferindo-os resistência ao ambiente ácido do trato gastrintestinal, bem como viabilizando sua aplicação em produtos lácteos fermentados. O presente estudo teve como objetivo avaliar as melhores concentrações de encapsulamento de L. rhamnosus utilizando alginato de sódio, pectina e gelatina. Foram realizados dois planejamentos experimentais para cápsulas contendo alginato e gelatina e pectina e gelatina. As variáveis investigadas foram as concentrações dos polímeros e a variável resposta foi a concentração de células viáveis nas cápsulas. A maior concentração de células viáveis (4,2 x 109 UFC/g) foi obtida para as concentrações de 1 % de alginato e 0,1 % de gelatina, sendo que a concentração de alginato foi a variável que influenciou de forma mais significativa a variável resposta, atingindo um efeito estimado negativo de -4,59. A avaliação estatística dos resultados das microcápsulas obtidas com pectina não foi satisfatória. Os resultados do Infravermelho mostraram que as três amostras analisadas continham o alginato, estas apresentaram picos muito próximos de 3400 cm-1 para 3454 cm-1 em relação ao grupo O-H. Nos espectros das microcápsulas observamos um pico com intensidade entre 1637 cm-1 e 1639 cm-1 comprovando a presença do grupo funcional –CONH² que está presente na gelatina, visto que o alginato puro não apresentou esse pico. A análise térmica do material indicou uma temperatura de transição vítrea (Tg) acima da temperatura de armazenamento das microcápsulas, o que garante a cristalização das microcápsulas. Após 120 dias de armazenamento sob refrigeração as cápsulas atingiram a concentração de 105UFC/ml, sendo ainda adequadas para a sua incorporação em alimentos. Com relação a incorporação das microcapsulas e das células livres no fermentado de leite, as células livres obtido pela adição de de L. rhamnosus ATCC 7469, apresentou a contagem mínima necessária para um produto ser considerado probiótico. As microcápsulas produzidas através da técnica de extrusão com alginato como agente encapsulante foram adequadas para a microencapsulação destes probióticos, enquanto que as microcápsulas obtidas com pectina não foram satisfatórias.Submitted by Mario BC (mario@bc.ufrpe.br) on 2017-08-02T12:34:30Z No. of bitstreams: 1 Susiany Pereira Lopes.pdf: 2606848 bytes, checksum: 24f6dce63c5488473e4ffc00aae62b46 (MD5)Made available in DSpace on 2017-08-02T12:34:30Z (GMT). No. of bitstreams: 1 Susiany Pereira Lopes.pdf: 2606848 bytes, checksum: 24f6dce63c5488473e4ffc00aae62b46 (MD5) Previous issue date: 2016-03-11application/pdfporUniversidade Federal Rural de PernambucoPrograma de Pós-Graduação em QuímicaUFRPEBrasilDepartamento de QuímicaEncapsulaçãoLactobacillus rhamnosusCápsula probióticaCIENCIAS EXATAS E DA TERRA::QUIMICADesenvolvimento e caracterização de cápsulas probióticas contendo Lactobacillus Rhamnosusinfo:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/masterThesis143564836222510089860060060038064160554570910301571700325303117195info:eu-repo/semantics/openAccessreponame:Biblioteca Digital de Teses e Dissertações da UFRPEinstname:Universidade Federal Rural de Pernambuco (UFRPE)instacron:UFRPELICENSElicense.txtlicense.txttext/plain; charset=utf-82165http://www.tede2.ufrpe.br:8080/tede2/bitstream/tede2/7039/1/license.txtbd3efa91386c1718a7f26a329fdcb468MD51ORIGINALSusiany Pereira Lopes.pdfSusiany Pereira Lopes.pdfapplication/pdf2606848http://www.tede2.ufrpe.br:8080/tede2/bitstream/tede2/7039/2/Susiany+Pereira+Lopes.pdf24f6dce63c5488473e4ffc00aae62b46MD52tede2/70392018-07-26 11:03:14.806oai:tede2: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Biblioteca Digital de Teses e Dissertaçõeshttp://www.tede2.ufrpe.br:8080/tede/PUBhttp://www.tede2.ufrpe.br:8080/oai/requestbdtd@ufrpe.br ||bdtd@ufrpe.bropendoar:2018-07-26T14:03:14Biblioteca Digital de Teses e Dissertações da UFRPE - Universidade Federal Rural de Pernambuco (UFRPE)false |
dc.title.por.fl_str_mv |
Desenvolvimento e caracterização de cápsulas probióticas contendo Lactobacillus Rhamnosus |
title |
Desenvolvimento e caracterização de cápsulas probióticas contendo Lactobacillus Rhamnosus |
spellingShingle |
Desenvolvimento e caracterização de cápsulas probióticas contendo Lactobacillus Rhamnosus LOPES, Susiany Pereira Encapsulação Lactobacillus rhamnosus Cápsula probiótica CIENCIAS EXATAS E DA TERRA::QUIMICA |
title_short |
Desenvolvimento e caracterização de cápsulas probióticas contendo Lactobacillus Rhamnosus |
title_full |
Desenvolvimento e caracterização de cápsulas probióticas contendo Lactobacillus Rhamnosus |
title_fullStr |
Desenvolvimento e caracterização de cápsulas probióticas contendo Lactobacillus Rhamnosus |
title_full_unstemmed |
Desenvolvimento e caracterização de cápsulas probióticas contendo Lactobacillus Rhamnosus |
title_sort |
Desenvolvimento e caracterização de cápsulas probióticas contendo Lactobacillus Rhamnosus |
author |
LOPES, Susiany Pereira |
author_facet |
LOPES, Susiany Pereira |
author_role |
author |
dc.contributor.advisor1.fl_str_mv |
BUENO, Luciano Avallone |
dc.contributor.advisor-co1.fl_str_mv |
FINKLER, Christine Lamenha Luna |
dc.contributor.referee1.fl_str_mv |
MACIEL, Maria Inês Sucupira |
dc.contributor.referee2.fl_str_mv |
RAMOS, Clécio Souza |
dc.contributor.referee3.fl_str_mv |
FINKLER, Leandro |
dc.contributor.authorLattes.fl_str_mv |
http://lattes.cnpq.br/1111494244666290 |
dc.contributor.author.fl_str_mv |
LOPES, Susiany Pereira |
contributor_str_mv |
BUENO, Luciano Avallone FINKLER, Christine Lamenha Luna MACIEL, Maria Inês Sucupira RAMOS, Clécio Souza FINKLER, Leandro |
dc.subject.por.fl_str_mv |
Encapsulação Lactobacillus rhamnosus Cápsula probiótica |
topic |
Encapsulação Lactobacillus rhamnosus Cápsula probiótica CIENCIAS EXATAS E DA TERRA::QUIMICA |
dc.subject.cnpq.fl_str_mv |
CIENCIAS EXATAS E DA TERRA::QUIMICA |
description |
Encapsulation is a technique that can be used for the protection of probiotics, conferring resistance to the acidic environment of the gastrointestinal tract allowing its use in fermented milk products. The present study had as objective evaluates the best encapsulation concentrations of L. rhamnosus using alginate of sodium, pectin and gelatin. Two experimental designs were conducted to capsules containing alginate and gelatin and pectin and gelatin. The variables investigated were concentrations of polymer and the dependent variable was the concentration of viable cells in the capsules. The highest concentration of viable cells (4.2 x 109 CFU/g) was achieved for concentrations of 1 % alginate and 0.1 % gelatin, whereas the concentration of alginate was variable that affected the response variable most significantly, reaching a negative estimated effect of -4.59. Statistical evaluation of the results obtained with microcapsules of pectin was not satisfactory. Results of IR spectra show that the three samples that were analyzed contain the alginate. The spectra shows peaks due to O−H group in the region of 3400−3454 cm−1. The spectra of Microcapsules shows a peak between 1637 cm−1 and 1639 cm−1 confirming the presence of the functional group –CONH2 that is present in the gelatin, whereas pure alginate does not show this peak. Thermal analysis of the material indicates a glass transition temperature (Tg) above the storage temperature of the microcapsules, which ensures the crystallization of the microcapsules. After 120 days of storage under refrigeration capsules have reached the concentration of 105UFC/mL, still being suitable for incorporation in food. Regarding the incorporation of the microcapsules and the free cells in the fermented milk, the free cells obtained by addition of L. rhamnosus ATCC 7469, presented the minimum score needed for a product to be considered probiotic. The microcapsules produced by the extrusion technique with alginate as encapsulating agents were suitable for microencapsulation of these probiotics, while microcapsules obtained were not satisfactory with pectin. |
publishDate |
2016 |
dc.date.issued.fl_str_mv |
2016-03-11 |
dc.date.accessioned.fl_str_mv |
2017-08-02T12:34:30Z |
dc.type.status.fl_str_mv |
info:eu-repo/semantics/publishedVersion |
dc.type.driver.fl_str_mv |
info:eu-repo/semantics/masterThesis |
format |
masterThesis |
status_str |
publishedVersion |
dc.identifier.citation.fl_str_mv |
LOPES, Susiany Pereira. Desenvolvimento e caracterização de cápsulas probióticas contendo Lactobacillus Rhamnosus. 2016. 103 f. Dissertação (Programa de Pós-Graduação em Química) - Universidade Federal Rural de Pernambuco, Recife. |
dc.identifier.uri.fl_str_mv |
http://www.tede2.ufrpe.br:8080/tede2/handle/tede2/7039 |
identifier_str_mv |
LOPES, Susiany Pereira. Desenvolvimento e caracterização de cápsulas probióticas contendo Lactobacillus Rhamnosus. 2016. 103 f. Dissertação (Programa de Pós-Graduação em Química) - Universidade Federal Rural de Pernambuco, Recife. |
url |
http://www.tede2.ufrpe.br:8080/tede2/handle/tede2/7039 |
dc.language.iso.fl_str_mv |
por |
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por |
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1435648362225100898 |
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600 600 600 |
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3806416055457091030 |
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1571700325303117195 |
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info:eu-repo/semantics/openAccess |
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openAccess |
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Universidade Federal Rural de Pernambuco |
dc.publisher.program.fl_str_mv |
Programa de Pós-Graduação em Química |
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UFRPE |
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Brasil |
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Departamento de Química |
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Universidade Federal Rural de Pernambuco |
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