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Table 1 Comparison of various physiochemical properties of biosurfactant produced by strain AR2 while growing on different carbon substrates

From: Substrate dependent in vitro antifungal activity of Bacillus sp strain AR2

Property SMSM DMSM MMSM LMSM GMSM SoMSM
Initial surface tension (mN/m) 64.1 ± 1.6 64.5 ± 0.1 64.5 ± 1.6 64.1 ± 1.3 65.8 ± 1.3 64.2 ± 1.2
Final surface tension (mN/m) 30.0 ± 0.8 31.1 ± 0.2 35.7 ± 0.1 35.1 ± 0.5 35.3 ± 0.8 37.3 ± 0.4
CMC (mg/l) 80.0 80.0 100.0 100.0 100.0 110.0
Final Biomass (mg/l) 826.4 ± 116.6 770.4 ± 87.6 629.9 ± 64.9 571.7 ± 87.2 726.8 ± 88.2 430.2 ± 68.83
Biosurfactant yield (mg/l) 640.8 ± 54.2 539.9 ± 40.4 304.3 ± 24.4 264.7 ± 31.5 369.6 ± 20.1 172.7 ± 39.4
Productivity (mg/l/h) 10.6 ± 0.9 8.9 ± 0.6 5.1 ± 0.4 4.4 ± 0.5 6.6 ± 0.1 2.9 ± 0.7
% EI24 (Kerosene) 66.0 60.0 52.0 48.0 55.0 32.0
  1. SMSM- sucrose minimal salt medium; DMSM- dextrose minimal salt medium; MMSM- maltose minimal salt medium; LMSM- lactose minimal salt medium; GMSM- glycerol minimal salt medium; SoMSM- sorbitol minimal salt medium.