| Parameters |
Control |
BS-A |
BS-J |
BS-K |
BS-P |
| pH |
7.0±0.0 |
8.8±0.0 |
8.6±0.0 |
8.1±0.0 |
8.7±0.0 |
| Biomass yield (c. f. u. /ml) |
12±1x102 |
45±3x109 |
56±2x109 |
55±2x108 |
87±6x109 |
| Surface tension (mN/m) |
59±0.0 |
27±0.0 |
27±0.0 |
28±0.0 |
27±0.0 |
| Emulsification index (%) |
- |
48.1±0.36 |
52.0±0.30 |
49.0±0.20 |
67.0±0.45 |
| Biosurfactant yield (g/l) |
0.001±0.0002 |
0.875±0.0025 (25.9%)* |
0.967±0.0035 (40.5%)* |
0.923±0.0025 (24.6%)* |
1.976±0.0000 (28.1%)* |
| % reduction in COD |
0.0±0.00 |
84.2±0.05 |
81.6±0.12 |
80.4±0.30 |
82.5±0.20 |
| Total sugars reduction (%) |
0.0±0.00 |
86.4±0.02 |
82.3±0.03 |
79.4±0.15 |
83.5±0.03 |
| Total nitrogen reduction (%) |
0.0±0.00 |
70.4±0.07 |
63.6±0.04 |
59.6±0.08 |
68.9±0.11 |
| Total phosphate reduction (%) |
0.0±0.00 |
59.1±0.04 |
55.5±0.04 |
45.5±0.02 |
55.9±0.10 |
Mean + Standard deviation; n=4
*values presented in the parentheses indicates the percent rise in the yield of biosurfactant production by the respective isolates by replacing 1:3 diluted distillery waste
with combination of distillery waste, curd whey and fruit processing waste in 1:1:1 ratio |
