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.

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