Utilize este identificador para referenciar este registo:
https://hdl.handle.net/1822/25258
Título: | Production and characterization of extracellular carbohydrate polymer from Cyanothece sp. CCY 0110 |
Autor(es): | 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 |
Palavras-chave: | Cyanobacteria Cyanothece Extracellular polymeric substances (EPS) Released polysaccharides (RPS) |
Data: | 2012 |
Editora: | Elsevier 1 |
Revista: | Carbohydrate Polymers |
Resumo(s): | 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. |
Tipo: | Artigo |
URI: | https://hdl.handle.net/1822/25258 |
ISSN: | 0144-8617 |
Outros identificadores: | 01448617 |
Versão da editora: | http://ac.els-cdn.com/S0144861712010983/1-s2.0-S0144861712010983-main.pdf?_tid=9843a4be-24fd-11e3-bc59-00000aacb35f&acdnat=1380015915_4854def313652134abe0a96b8bb57d09 |
Arbitragem científica: | yes |
Acesso: | Acesso aberto |
Aparece nas coleções: | DET/2C2T - Artigos em revistas internacionais com arbitragem científica |
Ficheiros deste registo:
Ficheiro | Descrição | Tamanho | Formato | |
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mota 2013.pdf | 956,71 kB | Adobe PDF | Ver/Abrir |