Table 1 γ-PGA production by B. siamensis SB1001 mutant strains
From: High-level production of poly-γ-glutamic acid from untreated molasses by Bacillus siamensis IR10
Strains | 12 h | 18 h | 24 h | Residual l-glutamic acid (g/L) | Conversion rate g(γ-PGA)/g(l-glutamic acid) | |||
|---|---|---|---|---|---|---|---|---|
Biomass (g/L) | γ-PGA (g/L) | Biomass (g/L) | γ-PGA (g/L) | Biomass (g/L) | γ-PGA (g/L) | |||
SB1001 | 2.31 ± 0.06 | 1.37 ± 0.03 | 3.76 ± 0.11 | 2.1 ± 0.05 | 4.49 ± 0.20 | 2.77 ± 0.07 | 16.17 ± 0.56 | 0.21 |
IR5 | 3.93 ± 0.11 | 3.77 ± 0.07 | 4.02 ± 0.18 | 5.30 ± 0.22 | 3.78 ± 0.10 | 6.62 ± 0.25 | 14.41 ± 0.62 | 0.42 |
IR7 | 4.06 ± 0.18 | 5.50 ± 0.23 | 4.18 ± 0.18 | 6.03 ± 0.24 | 4.51 ± 0.18 | 5.99 ± 0.24 | 15.66 ± 0.55 | 0.42 |
IR8 | 4.30 ± 0.15 | 0.89 ± 0.01 | 4.56 ± 0.16 | 1.04 ± 0.01 | 5.34 ± 0.22 | 1.63 ± 0.01 | 18.88 ± 0.67 | 0.15 |
IR9 | 5.13 ± 0.20 | 0.79 ± 0.01 | 5.19 ± 0.20 | 1.60 ± 0.03 | 6.08 ± 0.24 | 2.18 ± 0.05 | 14.23 ± 0.52 | 0.14 |
IR10 | 3.96 ± 0.12 | 5.60 ± 0.23 | 4.42 ± 0.18 | 6.86 ± 0.31 | 4.82 ± 0.21 | 7.74 ± 0.35 | 12.32 ± 0.48 | 0.44 |
IR12 | 3.89 ± 0.12 | 1.67 ± 0.03 | 5.06 ± 0.23 | 1.81 ± 0.02 | 6.24 ± 0.25 | 1.97 ± 0.02 | 13.25 ± 0.46 | 0.12 |
IR14 | 4.28 ± 0.16 | 5.51 ± 0.23 | 4.42 ± 0.15 | 5.69 ± 0.24 | 5.08 ± 0.19 | 5.79 ± 0.22 | 13.66 ± 0.51 | 0.35 |