TABLE 2.
Soils (no. of soils tested) | No. of biosurfactant-producing isolatesa | Gram negative | Gram positive |
---|---|---|---|
Undisturbed (6) | 13 | 1 | 12 |
Hydrocarbon contaminated (6) | 7 | 6 | 1 |
Metal contaminated (5) | 8 | 0 | 8 |
Cocontaminated (3) | 17 | 14 | 3 |
This represents the total number of biosurfactant-producing isolates obtained from each group of soils.