Table 4 Growth and PHA accumulation by seven isolated Bacillus species in the medium containing 20Â g/L reducing sugars produced by saccharification of aqueous ammonia-pretreated rice straw
Strains | Initial pH | Final pH | CDW (g/L) | PHA content (wt%) | PHA conc (g/L) | RCM (g/L) |
|---|---|---|---|---|---|---|
Bacillus sp. VK24 | 7.0 | 5.5 | 1.60 ± 0.05 | 0 | 0 | 1.60 ± 0.05 |
B. anthracis VK33 | 7.0 | 5.5 | 2.28 ± 0.07 | 3.3 ± 0.1 | 0 | 2.20 ± 0.07 |
B. anthracis VK38 | 7.0 | 5.4 | 2.85 ± 0.02 | 5.9 ± 0.3 | 0.17 ± 0.01 | 2.68 ± 0.03 |
B. cereus VK91 | 7.0 | 5.6 | 2.80 ± 0.09 | 43.8 ± 1.3 | 1.23 ± 0.01 | 1.57 ± 0.09 |
B. cereus VK92 | 7.0 | 8.0 | 5.00 ± 0.19 | 59.3 ± 0.7 | 2.96 ± 0.15 | 2.04 ± 0.04 |
B. cereus VK98 | 7.0 | 7.1 | 5.42 ± 0.12 | 46.4 ± 2.7 | 2.51 ± 0.09 | 2.90 ± 0.21 |
B. paranthracis VK164 | 7.0 | 5.6 | 2.67 ± 0.19 | 9.1 ± 0.2 | 0.24 ± 0.01 | 2.43 ± 0.18 |