TABLE 3.
EPS production in X. campestris pv. campestris strains
| Straina | EPS yield (g/liter)b with:
|
||||||
|---|---|---|---|---|---|---|---|
| Xylose | Glucose | Mannose | Fructose | Galactose | Sucrose | Maltose | |
| 8004 (wild type) | 3.32 ± 0.23 a | 9.8 ± 0.14 a | 6.56 ± 0.32 a | 6.82 ± 0.38 a | 7.17 ± 0.34 a | 9.62 ± 0.32 a | 9.59 ± 0.35 a |
| 0690pk (adkXcc mutant) | 1.77 ± 0.29 b | 4.13 ± 0.24 b | 2.85 ± 0.44 b | 3.85 ± 0.29 b | 2.76 ± 0.36 b | 4.15 ± 0.26 b | 4.16 ± 0.41 b |
| C0690pk (complemented mutant) | 3.41 ± 0.35 a | 9.85 ± 0.47 a | 6.61 ± 0.37 a | 6.96 ± 0.34 a | 7.25 ± 0.16 a | 9.71 ± 0.29 a | 9.5 ± 0.19 a |
a
Strains were cultured in NY medium supplemented with various sugars (2%).
b
Data presented are the means ± standard deviations of triplicate measurements from a representative experiment, and similar results were obtained in two other independent experiments. Different letters indicate significant differences (P = 0.01; t test).