Production and characterization of extracellular carbohydrate polymer from Cyanothece sp. CCY 0110
Autor(a) principal: | |
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Data de Publicação: | 2012 |
Outros Autores: | , , , , , , , , , , |
Tipo de documento: | Artigo |
Idioma: | eng |
Título da fonte: | Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) |
Texto Completo: | http://hdl.handle.net/1822/25258 |
Resumo: | Cyanobacterial extracellular polymeric substances (EPS) are heteropolysaccharides that possess characteristics suitable for industrial applications, notably a high number of different monomers, strong anionic nature and high hydrophobicity. However, systematic studies that unveil the conditions influencing EPS synthesis and/or its characteristics are mandatory. In this work, Cyanothece sp. CCY 0110 was used as model organism. Our results revealed that this strain is among the most efficient EPS producers, and that the amount of RPS (released polysaccharides) is mainly related to the number of cells, rather than to the amount produced by each cell. Light was the key parameter, with high light intensity enhancing significantly RPS production (reaching 1.8 g L−1), especially in the presence of combined nitrogen. The data showed that RPS are composed by nine different monosaccharides (including two uronic acids), the presence of sulfate groups and peptides, and that the polymer is remarkably thermostable and amorphous in nature. |
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Production and characterization of extracellular carbohydrate polymer from Cyanothece sp. CCY 0110CyanobacteriaCyanotheceExtracellular polymeric substances (EPS)Released polysaccharides (RPS)Cyanobacterial extracellular polymeric substances (EPS) are heteropolysaccharides that possess characteristics suitable for industrial applications, notably a high number of different monomers, strong anionic nature and high hydrophobicity. However, systematic studies that unveil the conditions influencing EPS synthesis and/or its characteristics are mandatory. In this work, Cyanothece sp. CCY 0110 was used as model organism. Our results revealed that this strain is among the most efficient EPS producers, and that the amount of RPS (released polysaccharides) is mainly related to the number of cells, rather than to the amount produced by each cell. Light was the key parameter, with high light intensity enhancing significantly RPS production (reaching 1.8 g L−1), especially in the presence of combined nitrogen. The data showed that RPS are composed by nine different monosaccharides (including two uronic acids), the presence of sulfate groups and peptides, and that the polymer is remarkably thermostable and amorphous in nature.ElsevierUniversidade do MinhoMota, RitaGuimarães, RodrigoBüttel, ZsófiaRossi, FedericoColica, GiovanniSilva, Carla J. S. M.Santos, CarlaGales, LuísZille, AndreaPhilippis, Roberto DePereira, Sara B.Tamagnini, Paula20122012-01-01T00:00:00Zinfo:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/articleapplication/pdfhttp://hdl.handle.net/1822/25258eng0144-8617http://ac.els-cdn.com/S0144861712010983/1-s2.0-S0144861712010983-main.pdf?_tid=9843a4be-24fd-11e3-bc59-00000aacb35f&acdnat=1380015915_4854def313652134abe0a96b8bb57d09info:eu-repo/semantics/openAccessreponame:Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos)instname:Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informaçãoinstacron:RCAAP2023-07-21T12:22:32Zoai:repositorium.sdum.uminho.pt:1822/25258Portal AgregadorONGhttps://www.rcaap.pt/oai/openaireopendoar:71602024-03-19T19:16:02.031258Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) - Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informaçãofalse |
dc.title.none.fl_str_mv |
Production and characterization of extracellular carbohydrate polymer from Cyanothece sp. CCY 0110 |
title |
Production and characterization of extracellular carbohydrate polymer from Cyanothece sp. CCY 0110 |
spellingShingle |
Production and characterization of extracellular carbohydrate polymer from Cyanothece sp. CCY 0110 Mota, Rita Cyanobacteria Cyanothece Extracellular polymeric substances (EPS) Released polysaccharides (RPS) |
title_short |
Production and characterization of extracellular carbohydrate polymer from Cyanothece sp. CCY 0110 |
title_full |
Production and characterization of extracellular carbohydrate polymer from Cyanothece sp. CCY 0110 |
title_fullStr |
Production and characterization of extracellular carbohydrate polymer from Cyanothece sp. CCY 0110 |
title_full_unstemmed |
Production and characterization of extracellular carbohydrate polymer from Cyanothece sp. CCY 0110 |
title_sort |
Production and characterization of extracellular carbohydrate polymer from Cyanothece sp. CCY 0110 |
author |
Mota, Rita |
author_facet |
Mota, Rita Guimarães, Rodrigo Büttel, Zsófia Rossi, Federico Colica, Giovanni Silva, Carla J. S. M. Santos, Carla Gales, Luís Zille, Andrea Philippis, Roberto De Pereira, Sara B. Tamagnini, Paula |
author_role |
author |
author2 |
Guimarães, Rodrigo Büttel, Zsófia Rossi, Federico Colica, Giovanni Silva, Carla J. S. M. Santos, Carla Gales, Luís Zille, Andrea Philippis, Roberto De Pereira, Sara B. Tamagnini, Paula |
author2_role |
author author author author author author author author author author author |
dc.contributor.none.fl_str_mv |
Universidade do Minho |
dc.contributor.author.fl_str_mv |
Mota, Rita Guimarães, Rodrigo Büttel, Zsófia Rossi, Federico Colica, Giovanni Silva, Carla J. S. M. Santos, Carla Gales, Luís Zille, Andrea Philippis, Roberto De Pereira, Sara B. Tamagnini, Paula |
dc.subject.por.fl_str_mv |
Cyanobacteria Cyanothece Extracellular polymeric substances (EPS) Released polysaccharides (RPS) |
topic |
Cyanobacteria Cyanothece Extracellular polymeric substances (EPS) Released polysaccharides (RPS) |
description |
Cyanobacterial extracellular polymeric substances (EPS) are heteropolysaccharides that possess characteristics suitable for industrial applications, notably a high number of different monomers, strong anionic nature and high hydrophobicity. However, systematic studies that unveil the conditions influencing EPS synthesis and/or its characteristics are mandatory. In this work, Cyanothece sp. CCY 0110 was used as model organism. Our results revealed that this strain is among the most efficient EPS producers, and that the amount of RPS (released polysaccharides) is mainly related to the number of cells, rather than to the amount produced by each cell. Light was the key parameter, with high light intensity enhancing significantly RPS production (reaching 1.8 g L−1), especially in the presence of combined nitrogen. The data showed that RPS are composed by nine different monosaccharides (including two uronic acids), the presence of sulfate groups and peptides, and that the polymer is remarkably thermostable and amorphous in nature. |
publishDate |
2012 |
dc.date.none.fl_str_mv |
2012 2012-01-01T00:00:00Z |
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://hdl.handle.net/1822/25258 |
url |
http://hdl.handle.net/1822/25258 |
dc.language.iso.fl_str_mv |
eng |
language |
eng |
dc.relation.none.fl_str_mv |
0144-8617 http://ac.els-cdn.com/S0144861712010983/1-s2.0-S0144861712010983-main.pdf?_tid=9843a4be-24fd-11e3-bc59-00000aacb35f&acdnat=1380015915_4854def313652134abe0a96b8bb57d09 |
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info:eu-repo/semantics/openAccess |
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openAccess |
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application/pdf |
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Elsevier |
publisher.none.fl_str_mv |
Elsevier |
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Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informação |
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RCAAP |
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RCAAP |
reponame_str |
Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) |
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Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) |
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Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) - Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informação |
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