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Propionic acid/acetic acid (P/A) and propionic acid/succinic acid (P/S) productivity ratios of three sequential sorbitol fermentation batches using P. acidipropionici operating in four independent vessels
| P/A ratio (mol mol −1 ) | P/S ratio (mol mol −1 ) | |
|---|---|---|
| First batch | 9.7 | 10.3 |
| Second batch | 13.0 | 5.7 |
| Third batch | 13.8 | 3.7 |
