Different biosurfactant screening methods were done for
the potential biosurfactant producing halophilic Bacillus
sp. BS3. The methods adopted were (a) drop-collapse test
by adding mineral oil in 96-well microtitre plates[15]; (b)
Oil spreading technique by adding weathered crude oil[16];
(c) Emulsification activity by adding kerosene and equal
volume of cell free supernatant[17] and (d) Hemolytic activity
in 5% blood agar plate.