Caracterização de carotenoides e atividade antioxidante da biomassa microalgal
Autor(a) principal: | |
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Data de Publicação: | 2017 |
Tipo de documento: | Tese |
Idioma: | por |
Título da fonte: | Biblioteca Digital de Teses e Dissertações do UFSM |
Texto Completo: | http://repositorio.ufsm.br/handle/1/24903 |
Resumo: | This study has the folloing objectives: (i) to identify the carotenoid profile of these three species of microalgae: Chlorella vulgaris, Scenedesmus obliquus and Aphanotece microscopica Nägeli; (ii) to quantify the carotenoids of those three microalgae species; (iii) to evaluate the antioxidant activity of carotenoid extracts obtained from microalgal biomasses; (iv) to identify the carotenoid profile of the microalga extract with the highest antioxidant potential at different culture times and (v) to quantify the carotenoids of the microalgae extracts with higher antioxidant potential at different culture times. The obtained results have showed that the three species of microalgae have presented the capacity to produce a significant carotenoid content under photoautotrophic conditions, indicating their potential as a renewable source of these pigments. These extracts have proved to be a potent peroxil radical scavenger. The highest antioxidant activity has been noticed in the microalgae Chlorella vulgaris, favored by its carotenoid profile, which contains a large number of conjugated double bonds. It is important to emphasize that this has been the first research related to the carotenoid profile and the Scenedesmus obliquus and Aphanotece microscopica Nägeli antioxidant capacity. The study has also showed that the cultivation time may be important to define in which phase one can accumulate specific carotenoids, and predict the performance and the optimization of operating conditions. The results achieved from this study in the sense that microalgae must be considered a potential feedstock to a great diversity of natural carotenoids production. |
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2022-06-20T18:04:32Z2022-06-20T18:04:32Z2017-09-29http://repositorio.ufsm.br/handle/1/24903This study has the folloing objectives: (i) to identify the carotenoid profile of these three species of microalgae: Chlorella vulgaris, Scenedesmus obliquus and Aphanotece microscopica Nägeli; (ii) to quantify the carotenoids of those three microalgae species; (iii) to evaluate the antioxidant activity of carotenoid extracts obtained from microalgal biomasses; (iv) to identify the carotenoid profile of the microalga extract with the highest antioxidant potential at different culture times and (v) to quantify the carotenoids of the microalgae extracts with higher antioxidant potential at different culture times. The obtained results have showed that the three species of microalgae have presented the capacity to produce a significant carotenoid content under photoautotrophic conditions, indicating their potential as a renewable source of these pigments. These extracts have proved to be a potent peroxil radical scavenger. The highest antioxidant activity has been noticed in the microalgae Chlorella vulgaris, favored by its carotenoid profile, which contains a large number of conjugated double bonds. It is important to emphasize that this has been the first research related to the carotenoid profile and the Scenedesmus obliquus and Aphanotece microscopica Nägeli antioxidant capacity. The study has also showed that the cultivation time may be important to define in which phase one can accumulate specific carotenoids, and predict the performance and the optimization of operating conditions. The results achieved from this study in the sense that microalgae must be considered a potential feedstock to a great diversity of natural carotenoids production.Este trabalho teve por objetivos: (i) identificar o perfil de carotenoides de três espécies de microalgas: Chlorella vulgaris, Scenedesmus obliquus e Aphanotece microscopica Nägeli; (ii) quantificar os carotenoides das três espécies de microalgas; (iii) avaliar a atividade antioxidante dos extratos de carotenoides obtidos das biomassas microalgais; (iv) identificar o perfil de carotenoides do extrato da microalga com maior potencial antioxidante em diferentes tempos de cultivo e (v) quantificar os carotenoides dos extratos da microalga com maior potencial antioxidante em diferentes tempos de cultivo. Os resultados obtidos demonstraram que a três espécies de microalgas apresentaram capacidade de produzir um conteúdo significativo de carotenoides sob condições fotoautotróficas, indicando seu potencial como fonte renovável desses pigmentos. Estes extratos provaram ser potente eliminador de radical peroxil. A maior atividade antioxidante foi da microalga Chlorella vulgaris, favorecido pelo seu perfil de carotenoides, que contém um grande número de ligações duplas conjugadas. É importante ressaltar que este foi o primeiro trabalho relacionado ao perfil de carotenoides e a capacidade antioxidante de Scenedesmus obliquus e Aphanotece microscopica Nägeli. O estudo também mostrou que o tempo de cultivo pode ser importante para definir em qual fase podemos acumular carotenoides de interesse, e prever o desempenho e otimização de condições operacionais. Os resultados encontrados nesse trabalho são promissores do ponto de vista de que a microalga deve ser considerada como uma matéria-prima potencial para a produção de uma grande diversidade de carotenoides naturais.porUniversidade Federal de Santa MariaCentro de Ciências RuraisPrograma de Pós-Graduação em Ciência e Tecnologia dos AlimentosUFSMBrasilCiência e Tecnologia dos AlimentosAttribution-NonCommercial-NoDerivatives 4.0 Internationalhttp://creativecommons.org/licenses/by-nc-nd/4.0/info:eu-repo/semantics/openAccessMicroalgaCianobactériaPigmentoCarotenoidesAntioxidanteMicroalgaeCyanobacteriaPigmentCarotenoidsAntioxidantCNPQ::CIENCIAS AGRARIAS::CIENCIA E TECNOLOGIA DE ALIMENTOSCaracterização de carotenoides e atividade antioxidante da biomassa microalgalCharacterization of carotenoids and antioxidant activity of microalgal biomassinfo:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/doctoralThesisLopes, Eduardo Jacobhttp://lattes.cnpq.br/9203445906772879Storck, Cátia ReginaBertagnolli, Silvana Maria MichelinCichoski, Alexandre JoséMenezes, Cristiano Ragagnin dehttp://lattes.cnpq.br/5532467265226436Patias, Luciana Dapieve500700000006600600600600600600600fcd345d9-258e-4860-a32d-74300dde2ce965db4672-ccbe-49b8-a585-3adf0b85ce19e9eda4e4-eb68-4bf3-a4c3-c9577cfc03758f0766ea-8530-40eb-bd8b-4a167d6837f39435db1c-ade5-4fec-b2d2-ff1c73c4917f72f25b6f-a3bd-4069-85de-5f3f82baf1b5reponame:Biblioteca Digital de Teses e Dissertações do UFSMinstname:Universidade Federal de Santa Maria (UFSM)instacron:UFSMORIGINALTES_PPGCTA_2017_PATIAS_LUCIANA.pdfTES_PPGCTA_2017_PATIAS_LUCIANA.pdfTese de Doutoradoapplication/pdf3521737http://repositorio.ufsm.br/bitstream/1/24903/1/TES_PPGCTA_2017_PATIAS_LUCIANA.pdf4b7f192d54f72bf3e2d85afc92f81548MD51CC-LICENSElicense_rdflicense_rdfapplication/rdf+xml; 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dc.title.por.fl_str_mv |
Caracterização de carotenoides e atividade antioxidante da biomassa microalgal |
dc.title.alternative.eng.fl_str_mv |
Characterization of carotenoids and antioxidant activity of microalgal biomass |
title |
Caracterização de carotenoides e atividade antioxidante da biomassa microalgal |
spellingShingle |
Caracterização de carotenoides e atividade antioxidante da biomassa microalgal Patias, Luciana Dapieve Microalga Cianobactéria Pigmento Carotenoides Antioxidante Microalgae Cyanobacteria Pigment Carotenoids Antioxidant CNPQ::CIENCIAS AGRARIAS::CIENCIA E TECNOLOGIA DE ALIMENTOS |
title_short |
Caracterização de carotenoides e atividade antioxidante da biomassa microalgal |
title_full |
Caracterização de carotenoides e atividade antioxidante da biomassa microalgal |
title_fullStr |
Caracterização de carotenoides e atividade antioxidante da biomassa microalgal |
title_full_unstemmed |
Caracterização de carotenoides e atividade antioxidante da biomassa microalgal |
title_sort |
Caracterização de carotenoides e atividade antioxidante da biomassa microalgal |
author |
Patias, Luciana Dapieve |
author_facet |
Patias, Luciana Dapieve |
author_role |
author |
dc.contributor.advisor1.fl_str_mv |
Lopes, Eduardo Jacob |
dc.contributor.advisor1Lattes.fl_str_mv |
http://lattes.cnpq.br/9203445906772879 |
dc.contributor.referee1.fl_str_mv |
Storck, Cátia Regina |
dc.contributor.referee2.fl_str_mv |
Bertagnolli, Silvana Maria Michelin |
dc.contributor.referee3.fl_str_mv |
Cichoski, Alexandre José |
dc.contributor.referee4.fl_str_mv |
Menezes, Cristiano Ragagnin de |
dc.contributor.authorLattes.fl_str_mv |
http://lattes.cnpq.br/5532467265226436 |
dc.contributor.author.fl_str_mv |
Patias, Luciana Dapieve |
contributor_str_mv |
Lopes, Eduardo Jacob Storck, Cátia Regina Bertagnolli, Silvana Maria Michelin Cichoski, Alexandre José Menezes, Cristiano Ragagnin de |
dc.subject.por.fl_str_mv |
Microalga Cianobactéria Pigmento Carotenoides Antioxidante |
topic |
Microalga Cianobactéria Pigmento Carotenoides Antioxidante Microalgae Cyanobacteria Pigment Carotenoids Antioxidant CNPQ::CIENCIAS AGRARIAS::CIENCIA E TECNOLOGIA DE ALIMENTOS |
dc.subject.eng.fl_str_mv |
Microalgae Cyanobacteria Pigment Carotenoids Antioxidant |
dc.subject.cnpq.fl_str_mv |
CNPQ::CIENCIAS AGRARIAS::CIENCIA E TECNOLOGIA DE ALIMENTOS |
description |
This study has the folloing objectives: (i) to identify the carotenoid profile of these three species of microalgae: Chlorella vulgaris, Scenedesmus obliquus and Aphanotece microscopica Nägeli; (ii) to quantify the carotenoids of those three microalgae species; (iii) to evaluate the antioxidant activity of carotenoid extracts obtained from microalgal biomasses; (iv) to identify the carotenoid profile of the microalga extract with the highest antioxidant potential at different culture times and (v) to quantify the carotenoids of the microalgae extracts with higher antioxidant potential at different culture times. The obtained results have showed that the three species of microalgae have presented the capacity to produce a significant carotenoid content under photoautotrophic conditions, indicating their potential as a renewable source of these pigments. These extracts have proved to be a potent peroxil radical scavenger. The highest antioxidant activity has been noticed in the microalgae Chlorella vulgaris, favored by its carotenoid profile, which contains a large number of conjugated double bonds. It is important to emphasize that this has been the first research related to the carotenoid profile and the Scenedesmus obliquus and Aphanotece microscopica Nägeli antioxidant capacity. The study has also showed that the cultivation time may be important to define in which phase one can accumulate specific carotenoids, and predict the performance and the optimization of operating conditions. The results achieved from this study in the sense that microalgae must be considered a potential feedstock to a great diversity of natural carotenoids production. |
publishDate |
2017 |
dc.date.issued.fl_str_mv |
2017-09-29 |
dc.date.accessioned.fl_str_mv |
2022-06-20T18:04:32Z |
dc.date.available.fl_str_mv |
2022-06-20T18:04:32Z |
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 |
http://repositorio.ufsm.br/handle/1/24903 |
url |
http://repositorio.ufsm.br/handle/1/24903 |
dc.language.iso.fl_str_mv |
por |
language |
por |
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500700000006 |
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600 600 600 600 600 600 600 |
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Attribution-NonCommercial-NoDerivatives 4.0 International http://creativecommons.org/licenses/by-nc-nd/4.0/ info:eu-repo/semantics/openAccess |
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Attribution-NonCommercial-NoDerivatives 4.0 International http://creativecommons.org/licenses/by-nc-nd/4.0/ |
eu_rights_str_mv |
openAccess |
dc.publisher.none.fl_str_mv |
Universidade Federal de Santa Maria Centro de Ciências Rurais |
dc.publisher.program.fl_str_mv |
Programa de Pós-Graduação em Ciência e Tecnologia dos Alimentos |
dc.publisher.initials.fl_str_mv |
UFSM |
dc.publisher.country.fl_str_mv |
Brasil |
dc.publisher.department.fl_str_mv |
Ciência e Tecnologia dos Alimentos |
publisher.none.fl_str_mv |
Universidade Federal de Santa Maria Centro de Ciências Rurais |
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