Teores de β-caroteno em suplementos e biomassa de Spirulina
Autor(a) principal: | |
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Data de Publicação: | 2011 |
Outros Autores: | , , , , |
Tipo de documento: | Artigo |
Idioma: | por |
Título da fonte: | Repositório Institucional da UFLA |
Texto Completo: | http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1413-70542011000200021 http://repositorio.ufla.br/jspui/handle/1/7392 |
Resumo: | Spirulina is a cyanobacterium that has been used for several centuries due to its nutritional and medicinal properties. This work has evaluated the contents of β-carotene both in Spirulina commercialized as food supplement, purchased from natural product shops, and in S. platensis reared under laboratory conditions. Some carotenoids exhibit pro-vitamin A activity, and β-carotene presents the greatest biological activity. β-Carotene of microalgae was extracted in 90% aqueous methanol. These extracts were saponified and partitioned in n-hexane. Chromatographic analyses were carried out in a Spherisorb column S5 ODS 2 (4.6 x 250 mm), with a mobile phase of methanol:tetrahydrofuran (90:10, v/v) delivered at 2 mL min-1 and chromatograms registered at 450 nm absorbance. Food supplement made with Spirulina presented low content of β-carotene. The highest content of β-carotene was detected in S. platensis cultivated under 24º C with photoperiod of 16 h light and 8 h dark. Considering its pro-vitamin activity, retinol equivalent (RE) was calculated from β-carotene to determine whether alga material could be claimed as an useful or an excellent source of the vitamins A. |
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Teores de β-caroteno em suplementos e biomassa de SpirulinaContents of β-carotene in supplements and biomass of SpirulinaCianobactériaBeta carotenoSuplemento alimentarCyanobacteriaBeta caroteneFood supplementSpirulina is a cyanobacterium that has been used for several centuries due to its nutritional and medicinal properties. This work has evaluated the contents of β-carotene both in Spirulina commercialized as food supplement, purchased from natural product shops, and in S. platensis reared under laboratory conditions. Some carotenoids exhibit pro-vitamin A activity, and β-carotene presents the greatest biological activity. β-Carotene of microalgae was extracted in 90% aqueous methanol. These extracts were saponified and partitioned in n-hexane. Chromatographic analyses were carried out in a Spherisorb column S5 ODS 2 (4.6 x 250 mm), with a mobile phase of methanol:tetrahydrofuran (90:10, v/v) delivered at 2 mL min-1 and chromatograms registered at 450 nm absorbance. Food supplement made with Spirulina presented low content of β-carotene. The highest content of β-carotene was detected in S. platensis cultivated under 24º C with photoperiod of 16 h light and 8 h dark. Considering its pro-vitamin activity, retinol equivalent (RE) was calculated from β-carotene to determine whether alga material could be claimed as an useful or an excellent source of the vitamins A.A cianobactéria Spirulina tem sido utilizada há séculos, tendo em vista suas propriedades nutricionais e medicinais. Neste trabalho, objetivou-se analisar os teores de β-caroteno tanto em suplementos alimentares a base de Spirulina comercializados em estabelecimentos de produtos naturais no mercado varejista, quanto em S. platensis cultivada em laboratório. Alguns pigmentos carotenóides possuem atividade de vitamina A e, dentre eles, o β-caroteno é o que apresenta maior atividade biológica. A extração de β-caroteno foi feita com metanol:água (90:10 v/v), seguida de saponificação e partição em n-hexano. As análises cromatográficas foram realizadas em coluna Waters Spherisorb S5 ODS 2 (4,6 x 250 mm), usando metanol:tetrahidrofurano (90:10, v/v) bombeado a 2 mL min-1, com registro dos cromatogramas em 450 nm. Os suplementos alimentares a base de Spirulina apresentaram baixos teores de β-caroteno. A maior concentração foi encontrada em S. platensis cultivada a 24º C com fotoperíodo de 16 h claro e 8 h escuro. Considerando sua atividade provitamínica, os teores de retinol equivalente (RE) nas microalgas analisadas no presente trabalho foram calculados a partir do β-caroteno para classificá-las como fonte excelente ou fonte útil de vitamina A.Editora da Universidade Federal de Lavras2011-04-012015-04-30T13:36:08Z2015-04-30T13:36:08Z2015-04-30info:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/articletext/htmlhttp://www.scielo.br/scielo.php?script=sci_arttext&pid=S1413-70542011000200021ALENCAR, D. B. de et al. Teores de β-caroteno em suplementos e biomassa de Spirulina. Ciência e Agrotecnologia, Lavras, v. 35, n. 2, p. 386-391, mar./abr. 2011.http://repositorio.ufla.br/jspui/handle/1/7392Ciência e Agrotecnologia v.35 n.2 2011reponame:Repositório Institucional da UFLAinstname:Universidade Federal de Lavras (UFLA)instacron:UFLAAlencar, Daniel Barroso dePires-Cavalcante, Kelma Maria dos SantosSaboya, Jefferson Pablo de SouzaSousa, Márcia Barbosa deFarias, Wladimir Ronald LoboSaker-Sampaio, Silvanaporinfo:eu-repo/semantics/openAccess2016-07-25T18:16:03Zoai:localhost:1/7392Repositório InstitucionalPUBhttp://repositorio.ufla.br/oai/requestnivaldo@ufla.br || repositorio.biblioteca@ufla.bropendoar:2016-07-25T18:16:03Repositório Institucional da UFLA - Universidade Federal de Lavras (UFLA)false |
dc.title.none.fl_str_mv |
Teores de β-caroteno em suplementos e biomassa de Spirulina Contents of β-carotene in supplements and biomass of Spirulina |
title |
Teores de β-caroteno em suplementos e biomassa de Spirulina |
spellingShingle |
Teores de β-caroteno em suplementos e biomassa de Spirulina Alencar, Daniel Barroso de Cianobactéria Beta caroteno Suplemento alimentar Cyanobacteria Beta carotene Food supplement |
title_short |
Teores de β-caroteno em suplementos e biomassa de Spirulina |
title_full |
Teores de β-caroteno em suplementos e biomassa de Spirulina |
title_fullStr |
Teores de β-caroteno em suplementos e biomassa de Spirulina |
title_full_unstemmed |
Teores de β-caroteno em suplementos e biomassa de Spirulina |
title_sort |
Teores de β-caroteno em suplementos e biomassa de Spirulina |
author |
Alencar, Daniel Barroso de |
author_facet |
Alencar, Daniel Barroso de Pires-Cavalcante, Kelma Maria dos Santos Saboya, Jefferson Pablo de Souza Sousa, Márcia Barbosa de Farias, Wladimir Ronald Lobo Saker-Sampaio, Silvana |
author_role |
author |
author2 |
Pires-Cavalcante, Kelma Maria dos Santos Saboya, Jefferson Pablo de Souza Sousa, Márcia Barbosa de Farias, Wladimir Ronald Lobo Saker-Sampaio, Silvana |
author2_role |
author author author author author |
dc.contributor.author.fl_str_mv |
Alencar, Daniel Barroso de Pires-Cavalcante, Kelma Maria dos Santos Saboya, Jefferson Pablo de Souza Sousa, Márcia Barbosa de Farias, Wladimir Ronald Lobo Saker-Sampaio, Silvana |
dc.subject.por.fl_str_mv |
Cianobactéria Beta caroteno Suplemento alimentar Cyanobacteria Beta carotene Food supplement |
topic |
Cianobactéria Beta caroteno Suplemento alimentar Cyanobacteria Beta carotene Food supplement |
description |
Spirulina is a cyanobacterium that has been used for several centuries due to its nutritional and medicinal properties. This work has evaluated the contents of β-carotene both in Spirulina commercialized as food supplement, purchased from natural product shops, and in S. platensis reared under laboratory conditions. Some carotenoids exhibit pro-vitamin A activity, and β-carotene presents the greatest biological activity. β-Carotene of microalgae was extracted in 90% aqueous methanol. These extracts were saponified and partitioned in n-hexane. Chromatographic analyses were carried out in a Spherisorb column S5 ODS 2 (4.6 x 250 mm), with a mobile phase of methanol:tetrahydrofuran (90:10, v/v) delivered at 2 mL min-1 and chromatograms registered at 450 nm absorbance. Food supplement made with Spirulina presented low content of β-carotene. The highest content of β-carotene was detected in S. platensis cultivated under 24º C with photoperiod of 16 h light and 8 h dark. Considering its pro-vitamin activity, retinol equivalent (RE) was calculated from β-carotene to determine whether alga material could be claimed as an useful or an excellent source of the vitamins A. |
publishDate |
2011 |
dc.date.none.fl_str_mv |
2011-04-01 2015-04-30T13:36:08Z 2015-04-30T13:36:08Z 2015-04-30 |
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://www.scielo.br/scielo.php?script=sci_arttext&pid=S1413-70542011000200021 ALENCAR, D. B. de et al. Teores de β-caroteno em suplementos e biomassa de Spirulina. Ciência e Agrotecnologia, Lavras, v. 35, n. 2, p. 386-391, mar./abr. 2011. http://repositorio.ufla.br/jspui/handle/1/7392 |
url |
http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1413-70542011000200021 http://repositorio.ufla.br/jspui/handle/1/7392 |
identifier_str_mv |
ALENCAR, D. B. de et al. Teores de β-caroteno em suplementos e biomassa de Spirulina. Ciência e Agrotecnologia, Lavras, v. 35, n. 2, p. 386-391, mar./abr. 2011. |
dc.language.iso.fl_str_mv |
por |
language |
por |
dc.rights.driver.fl_str_mv |
info:eu-repo/semantics/openAccess |
eu_rights_str_mv |
openAccess |
dc.format.none.fl_str_mv |
text/html |
dc.publisher.none.fl_str_mv |
Editora da Universidade Federal de Lavras |
publisher.none.fl_str_mv |
Editora da Universidade Federal de Lavras |
dc.source.none.fl_str_mv |
Ciência e Agrotecnologia v.35 n.2 2011 reponame:Repositório Institucional da UFLA instname:Universidade Federal de Lavras (UFLA) instacron:UFLA |
instname_str |
Universidade Federal de Lavras (UFLA) |
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UFLA |
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UFLA |
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Repositório Institucional da UFLA |
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Repositório Institucional da UFLA |
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Repositório Institucional da UFLA - Universidade Federal de Lavras (UFLA) |
repository.mail.fl_str_mv |
nivaldo@ufla.br || repositorio.biblioteca@ufla.br |
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1807835159112712192 |