Indigenous biosurfactant producing strains for potential applications in enhanced oil recovery

Abstract

The isolation screening and identification of potential indigenous biosurfactant producing and oil utilizing bacterial strains were carried out from the formation water as well as soil sample of the Assam oil reservoir Among the isolated strains from the indigenous sources Bacillus subtilis MG495086 and Bacillus tequilensis MK 729017 showed better surface active properties as they lowered the surface tension ST to 30 194 177 2 mN m along with a high emulsification index EI of 70 194 177 2 Their...