%0 Journal Article %@ 0959-3993 %A Pruthi, V. %A Cameotra, Swaranjit Singh %D 1997 %F open:759 %I Springer Science %J World Journal of Microbiology & Biotechnology %K Biosurfactant - emulsification - oil recovery - Serratia marcescens - surface-tension %N 1 %P 133-135 %T Production of a biosurfactant exhibiting excellent emulsification and surface active properties bySerratia marcescens %U http://crdd.osdd.net/open/759/ %V 13 %X A biosurfactant exhibiting excellent emulsification activity and surface properties was isolated during growth ofSerratia marcescens on 2% (w/v) sucrose. Reduction in surface tension values and increase in the yield of biosurfactant during the late log phase of growth indicates that the biosurfactant is a secondary microbial metabolite. The biosurfactant formed stable emulsions with a wide variety of hydrocarbons. The isolated surface-active compound has a potential application in enhanced oil recovery and is stable over a wide range of temperatures (10-120‡C) and pH (2-12). This is the first report of effective and stable emulsion formation by a strain ofSerratia marcescens. %Z Copyright of this article belongs to Springer Science.