Table 1 Summary of 2KGA production from phage infection at different stages by Pseudomonas fluorescens K1005
Parameters | Without feeding seed cuture | With feeding seed cuture | |||||
|---|---|---|---|---|---|---|---|
Normal | Infected phage at 0 h | Infected phage at 4 h | Infected phage at 8 h | Infected phage at 0 h | Infected phage at 4 h | Infected phage at 8 h | |
Fermentation periods (h) | 72 | 96 | 96 | 80 | 80 | 80 | 72 |
2KGA concentration (g/L) | 178.45 ± 1.41 | 144.98 ± 1.61 | 150.79 ± 1.42 | 168.85 ± 1.95 | 159.89 ± 2.52 | 163.59 ± 1.55 | 171.34 ± 1.25 |
percent conversion(%) | 91.99 ± 0.71 | 74.73 ± 0.83 | 77.73 ± 0.74 | 87.04 ± 1.00 | 82.42 ± 1.30 | 84.32 ± 0.80 | 88.32 ± 0.64 |
Total productivity (g/L.h) | 2.48 ± 0.02 | 1.51 ± 0.01 | 1.57 ± 0.01 | 2.11 ± 0.03 | 2.00 ± 0.30 | 2.04 ± 0.02 | 2.38 ± 0.01 |
Maximum productivity (g/L.h) | 2.61 ± 0.13 | 1.71 ± 0.17 | 1.79 ± 0.04 | 2.26 ± 0.05 | 2.15 ± 0.17 | 2.21 ± 0.06 | 2.54 ± 0.04 |
Yield (g/g) | 0.99 ± 0.01 | 0.81 ± 0.01 | 0.84 ± 0.01 | 0.94 ± 0.01 | 0.89 ± 0.01 | 0.91 ± 0.01 | 0.95 ± 0.01 |