%0 Journal Article
%@ 0959-3993
%A Pruthi, V.
%A Cameotra, Swaranjit Singh
%D 1997
%F open:760
%I Springer Science
%J World Journal of Microbiology & Biotechnology
%K Arthrobacter protophormiae  - biosurfactant -  n-hexadecane - oil recovery - psychrophilic 
%N 1
%P 137-139
%T Production and properties of a biosurfactant synthesized byArthrobacter protophormiae — an antarctic strain
%U http://crdd.osdd.net/open/760/
%V 13
%X This study reports the production of biosurfactant by a psychrophilic strain ofArthrobacter protophormiae during growth on an immiscible carbon source, w-hexadecane. The biosurfactant reduces the surface tension of the medium from 68.0 mN/m to 30.60 mN/m and exhibits good emulsification activity. The strain could grow and produce biosurfactant in the presence of high NaCl concentrations (10.0 to 100.0 g/1). Although the biosurfactant was isolated by growing the organism under psychrophilic conditions (10‡C) it exhibited stable activity over a wide range of temperature (30‡C to 100‡C). It retained its surface-active properties at pH2 to 12. The biosurfactant was effective in recovering up to 90% of residual oil from an oil saturated sandpack column, indicating its potential value in enhanced oil recovery. 
%Z copyright of this article belongs to Springer Science.