Table 2 Effect of agitation speed on 1,3-propanediol production in batch fermentation of L. reuteri CH53 using glucose and glycerol as co-substrates
From: Enhancement of 1,3-propanediol production from industrial by-product by Lactobacillus reuteri CH53
Agitation speed (rpm) | Biomass (OD600) | 1,3-PDO (g/L) | Acetate (g/L) | Lactate (g/L) | Y1,3-PDO/gly (g/g) | Q1,3-PDO (g/L/h) | Residual glycerol (g/L) | Residual glucose (g/L) |
|---|---|---|---|---|---|---|---|---|
50 | 8.40 ± 0.26 | 14.79 ± 0.38 | 7.09 ± 0.26 | 13.27 ± 0.39 | 0.73 ± 0.02 | 1.83 ± 0.05 | 0.00 | 0.00 |
100 | 8.35 ± 0.24 | 15.58 ± 0.56 | 4.77 ± 0.18 | 14.18 ± 0.38 | 0.78 ± 0.03 | 1.95 ± 0.07 | 0.00 | 0.00 |
200 | 6.71 ± 0.18 | 10.75 ± 0.42 | 4.10 ± 0.16 | 10.18 ± 0.24 | 0.72 ± 0.01 | 1.34 ± 0.05 | 2.02 ± 0.48 | 1.42 ± 0.26 |
300 | 6.20 ± 0.09 | 7.57 ± 0.31 | 3.05 ± 0.09 | 7.73 ± 0.22 | 0.71 ± 0.06 | 0.95 ± 0.04 | 9.35 ± 0.56 | 4.02 ± 0.35 |