CO2 utilization during the dissimilation of glycerol by the propionic acid bacteria

WOOD & They found that the amount of CO2 present following fermentation was much less than the amount that had been added as CaCO3. They also found that the total organic C content of the fermented culture was greater than the total organic C content of the unfermented medium [Wood & Werkman, 1938]. These were the first reports concerning such an unusual metabolic reaction of the propionic acid bacteria. However, the later evidence presented by Wood & Werkman [1938] should remove all doubts.