Culture parameters | Biomass dry weight (g/ 100Â ml) | Exopolysaccharides dry weight (g/ 100Â ml) |
---|---|---|
Inoculum size CFU/ ml (%V/V) | ||
 4.9 × 105 | 3.2 ± 0.1d | 0.20 ± 0.01d |
 2.01 × 105 | 4.3 ± 0.3b | 0.42 ± 0.01b |
 1.8 × 105 | 4.9 ± 0.4a | 0.55 ± 0.4a |
 0.9 × 105 | 3.5 ± 0.3c | 0.28 ± 0.01c |
Different metal ions | ||
 KCl | 4.5 ± 0.3a | 0.50 ± 0.01a |
 NaCl | 4.0 ± 0.3b | 0.45 ± 0.02b |
 CaCl2 | 3.9 ± 0.3c | 0.43 ± 0.02c |
 MgCl2 | 3.8 ± 0.2c | 0.41 ± 0.01d |
Different phosphates | ||
 KH2PO4 (0.05%) | 4.7 ± 0.6a | 0.53 ± 0.3a |
 KH2PO4 (0.1%) | 4.1 ± 0.2d | 0.44 ± 0.01c |
 NaH2PO4 (0.05%) | 4.5 ± 0.3b | 0.50 ± 0.01b |
 NaH2PO4 (0.1%) | 3.9 ± 0.2e | 0.41 ± 0.01d |
 K2HPO4 (0.05%) | 4.3 ± 0.2c | 0.49 ± 0.02b |
 K2HPO4 (0.1%) | 3.8 ± 0.1e | 0.39 ± 0.01e |