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Table 2 Comparison of screening characteristics of isolate IVN-51 with other biosurfactant-producing bacterial isolates

From: Isolation, characterization, and application of biosurfactant by Klebsiella pneumoniae strain IVN51 isolated from hydrocarbon-polluted soil in Ogoniland, Nigeria

Isolate codes Source of sample Lipase test (mm) Emulsification assay (@400 nm) Emulsification index (E 24)  % Tilting glass slide test Haemolytic assay (mm) Oil-spreading test (mm2)a
IVN-02 HPS 13.0 ± 2.0 0.5045 ± 0.0025 11.1 ± 2.1 + 3.0 ± 2.0 28.3 ± 0.79
IVN-45 HPS 8.0 ± 2.0 0.5085 ± 0.0015 40.0 ± 1.0 + 12.0 ± 2.0 19.6 ± 0.78
IVN-51 HPS 11.0 ± 1.0 0.4020 ± 0.002 47.8 ± 1.0 + 6.0 ± 2.0 78.5 ± 0.79
IVN-67 HPS 16.0 ± 2.0 0.3220 ± 0.001 24.0 ± 2.0 + 2.0 ± 0.5 176.6 ± 3.14
  1. All values are mean ± SD for triplicate cultures
  2. HPS hydrocarbon-polluted soil;+ positive; DH 2 O distilled water
  3. a Surface area