Table 4.
Levels of organic acids (g/L) obtained in BPL005 fermentations (Mean ± SD).
Organic acids concentration (g/L) | ||||
---|---|---|---|---|
No pH control | pH control | |||
5 h | 22 h | 45 h | 22 h | |
Lactic acid | 3.172 ± 0.066 | 12.168 ± 0.223** | 15.635 ± 0.158** | 19.731 ± 0.232** |
Acetic acid | 0.105 ± 0.050 | 0.123 ± 0.058 | 0.143 ± 0.058** | 0.145 ± 0.049 |
Propionic acid | 0.034 ± 0.029 | 0.155 ± 0.029* | 0.210 ± 0.026** | 0.134 ± 0.013* |
Butyric acid | 0.074 ± 0.041 | 0.074 ± 0.041 | 0.072 ± 0.039 | 0.082 ± 0.041 |
Succinic acid | 0.114 ± 0.025 | 0.112 ± 0.042 | 0.157 ± 0.033 | 0.175 ± 0.008 |
Statistics are done comparing 5 h values vs. 22 h and 45 h, respectively.
p-value < 0.01,
p-value < 0.001.