Table 1.
Change ratios of fermentation products from 12–18 h
| Con | Van | Syr | Fer | Coum | |
|---|---|---|---|---|---|
| Acetone | 4.29 | − 0.18 | 0.72 | 0.08 | 0.23 |
| Ethanol | 0.38 | 0.04 | 0.04 | 0.94 | 1.03 |
| Butanol | 2.74 | 5.64 | 3.55 | 4.38 | 3.35 |
| Acetic acid | 1.13 | 0.87 | 4.90 | 0.91 | 0.92 |
| Butyric acid | 1.62 | 1.14 | − 0.20 | 1.21 | 1.25 |
| Glucose | − 0.30 | − 0.21 | − 0.26 | − 0.23 | − 0.24 |
| OD600 | 0.12 | 0.10 | 0.25 | 0.10 | 0.11 |
*Change ratio = (Value_18h-Value_12h)/Value_12h. OD600, optical density at 600 nm. Con, Van, Coum, and Fer denote the control, vanillin, p-coumaric acid, syringaldehyde and ferulic acid samples, respectively