Biosurfactants are known to promote hydrocarbon emulsification
and heavy metal remediation because of their amphiphilic
nature. The present study indicated that pyocyanin pigment
assisted emulsification promoted by biosurfactants. The heavymetal
tolerance due to increased pyocyanin production may be a
defense strategy by bacteria in general as they produce both biosurfactant
and pigment to survive in arid conditions. The pigment
was not found to possess pronounced antimicrobial activity but
orchestrated with biosurfactants in emulsification. One major
drawback in commercialization of biosurfactants is their low yields.
So this sort of coupled reaction can be of great economic interest as
it can reduce the quantity of biosurfactants required for a desired
reaction. This work may be of great interest in industries where
biosurfactant and pigment can both be made use of, such as paints
or cosmetics or even environmental remediation.