Factors affecting rhamnolipids production by Pseudomonas aeruginosa LBI
Contribuinte(s) |
Universidade Estadual Paulista (UNESP) |
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Data(s) |
30/09/2013
20/05/2014
30/09/2013
20/05/2014
01/02/2008
|
Resumo |
This paper presents the results from study investigating the capacity of Pseudomonas aeruginosa LBI growing on several carbon (Hydrophilic substrate) and nitrogen sources. The carbon source (2016) studied were: glycerol, manitol, fructose, glucose, lactose and the nitrogen sources (2; 3; 4 and 5016) were: NaNO3, NH4NO3, (NH4)(2)SO4 and (NH2)(2)CO. At the 96 h of fermentation, the medium with glycerol as a carbon source reached 7.9 g/L of rhamnolipids and 1. 2 g/L cellular protein. The surface tension reduction was 38.46 % for glycerol as a carbon source. The NaNO3 at 3% was the best concentration for rhamnolipids production (7.35 g/L) and cellular protein (1.12 g/L). The influences of metal ions [FeSO4.7H(2)O (0.001g/L, 0.005 g/L and 0.1 g/L) and MgSO4.7H(2)O (0.001 g/L, 0.005 g/L and 0.1 g/L)] on ramnolipids production were studied. Fe2+ had a negative influence on the studied concentrations while Mg2+ had a positive influence when its concentration was increased. |
Formato |
45-49 |
Identificador |
http://shankargargh.org/biotek_backissue/vol(3)2008/feb2008.aspx Research Journal of Biotechnology. Indore: Research Journal Biotechnology, v. 3, n. 1, p. 45-49, 2008. 0973-6263 http://hdl.handle.net/11449/20171 WOS:000254833600008 |
Idioma(s) |
eng |
Publicador |
Research Journal Biotechnology |
Relação |
Research Journal of Biotechnology |
Direitos |
closedAccess |
Palavras-Chave | #Pseudomonas aeruginosa #rhamnolipid #carbon source #nitrogen source #metal ions |
Tipo |
info:eu-repo/semantics/article |