Experiments with the cell-free broth for removal of motor oil adsorbed on the porous surface showed a removal of 70.0 % of the oil after manual shaking for 5 minutes, demonstrating the potential of the crude biosurfactants a cleaning agent (Figure 2). Al ready at concentration of the CMC (0.5 %) the removal of oil reached 47.8 % while at ½CMC (0.25 %) the removal of motor oil reached 46.1 %.