Abstract: Biosurfactants are surface-active substances produced by microorganisms. They are amphiphiles and consist of a polar (hydrophilic) and non polar (hydrophobic) group. Due to their amphiphilic structure biosurfactants tend to increase the surface area of hydrophobic water-insoluble substances and this makes surfactant an excellent emulsifier, foaming and dispersing agents. They are environmental friendly, biodegradable, less toxic and non-hazardous. Because of their potential advantages, biosurfactants are widely used in many pharmaceutical and industrial applications.