| Parameters |
Control |
BS-A |
BS-J |
BS-K |
BS-P |
| pH |
7.0±0.0 |
8.7±0.0 |
8.7±0.0 |
8.9±0.1 |
8.9±0.0 |
Biomass yield
(c. f. u. /ml) |
12±1x102 |
94±4x108 |
89±6x108 |
90±5x107 |
68±4x109 |
| Surface tension (mN/m) |
61±5.2 |
27±0.0 |
27±0.0 |
28±0.0 |
27±0.0 |
| Emulsification index (%) |
- |
47±0.8 |
52±0.8 |
34±0.8 |
58±1.4 |
| Biosurfactant yield (g/l) |
0.00±0.00 |
0.79±0.01 (18.2%)* |
0.79±0.00 (26.9%)* |
0.90±0.01 (22.3%)* |
1.86±0.01 (23.5%)* |
| % reduction in COD |
0.0±0.00 |
82.4±0.90 |
80.5±0.41 |
76.0±1.31 |
80.5±0.78 |
| Total sugars reduction (%) |
0.0±0.00 |
86.2±0.91 |
82.6±1.10 |
79.2±0.87 |
81.4±0.37 |
| Total nitrogen reduction (%) |
0.00±0.00 |
71.3±0.88 |
62.3±0.87 |
58.4±0.24 |
62.8±0.66 |
| Total phosphate reduction (%)
reduction (%)
reduction (%) |
0.0±0.00 |
59.5±0.37 |
57.0±0.49 |
48.0±0.24 |
56.5±0.37 |
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 sugar industry effluent in 1:1:1 ratio |
