A new bacterial strain, was isolated from petroleum contaminated soil, identified and named Pseudomonas aeruginosa strain LBI.
The new strain produced surface-active rhamnolipids by batch cultivation in a mineral salts medium with soapstock as the sole
carbon source. Biosurfactant production increased after nitrogen depletion. The maximum rhamnolipid concentration, 15.9 g/l, was
reached when it was incubated in a bioreactor with a constant KLa of 169:9 h1. 2002 Elsevier Science Ltd. All rights reserved.