Produção de biossurfactantes por microrganismos isolados de solo contaminado com óleo diesel
AUTOR(ES)
Decesaro, Andressa, Rigon, Magali Rejane, Thomé, Antônio, Colla, Luciane Maria
FONTE
Quím. Nova
DATA DE PUBLICAÇÃO
2013
RESUMO
The aim of this work was to produce biosurfactants through submerged fermentation using microorganisms isolated from soil contaminated with diesel. Microorganisms were isolated, characterized by the production of biosurfactants, and used to study the influence of type, induction and concentration of ammonium sulfate as a nitrogen source in the culture medium. The microorganisms that showed best results, in terms of production of biosurfactants, were identified as being of the genus Pseudomonas and Bacillus. The biosurfactants produced proved capable of reducing the surface tension of the media to 39 mN/m and 34 mN/m, respectively. Higher biosurfactant production was obtained in the medium containing 1% soybean oil without ammonium sulfate.
Documentos Relacionados
- Degradação do herbicida 2,4-D por microrganismos isolados de solo contaminado do Brasil
- Estudo laboratorial da biorremediação de solo de posto de combustíveis contaminado com óleo diesel
- Produção de lipases e biossurfactantes por bactérias isoladas de um solo contaminado com óleo vegetal.
- Utilização do método do papel filtro para a determinação das curvas características de um solo coluvionar não saturado contaminado com óleo diesel
- Evaluating the effect of soil flushing with surfactant on the biodegradation of soil contaminated by diesel oil.