h i g h l i g h t s
Characterized an indigenous biosurfactant producing and crude oil-degrading strain.
Optimum conditions for growth of Bacillus sp. USTBa strain were standardized.
Stability studies of biosurfactant were carried out under the extreme conditions.
Biosurfactant showed high emulsification index with crude oil and no toxicity.
It shows high potential to use in remediation of crude oil contaminated sites.