Production of rhamnolipids by mutants from Pseudomonas aeruginosa (rhlG and 2 A1)

Abstract

Despite the numerous advantages of biosurfactants, such as low toxicity, biodegradability and high stability, these compounds are not widely used because of the high cost of production. The application of alternative carbon sources can contribute to the reduction of production costs and increase the commercial use of biosurfactants. Furthermore, the understanding of genes involved in the biosynthesis of surfactant assists in understanding the development of tools entails an increase in the production of rhamnolipids. Therefore the present study aims to study the relationship between gene rhlG with the production of rhamnolipids and also assess whether there are differences in the metabolism of carbon sources on hydrophilic and hydrophobic deletion mutants in the gene above. Another point to be evaluated is the potential of biodiesel glycerol as a carbon source for the production of this surfactant by P. aeruginosa LBI 2A1.