Factors affecting rhamnolipids production by Pseudomonas aeruginosa LBI


Autoria(s): Henning, Silva Barbara; Paula Santos, Pirollo Maria; Lovaglio, Roberta; Costa, Siddhartha G. V. A. O.; Contiero, Jonas; Loshchagin, Pizzolitto Elisabeth
Contribuinte(s)

Universidade Estadual Paulista (UNESP)

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