The Butanol Fermentation

Acetone-butanol fermentation revisited.

The Mechanism of the Butanol-acetone Fermentation

Since potassium and magnesium ions have been shown to favor the formation of acetone from pyruvate by suspensions of Clostridium acetobutylicum (Weizmann) (1) and since these cations are known to catalyze the transformation of pyruvate into phosphoenolpyruvate (2), there was a possibility that the latter may be an intermediate in the butanol-acetone fermentation. No attempt has so far been made...

The Mechanism of the Butanol-acetone Fermentation

The question whether pyruvic acid holds a key position as an intermediate in the butanol-acetone fermentation by Clostridium acetobutylicum (Weizmann) similar to that in the alcoholic fermentation by yeast and in glycolysis by muscle has, so far, not received a decisive answer. This is mainly due to the inconsistent results obtained by different workers in this field. As in the case of corn-mea...

Continuous butanol fermentation and feed starch retrogradation: butanol fermentation sustainability using Clostridium beijerinckii BA101.

Use of starch solution as feed for butanol bioconversion processes employing Clostridium beijerinckii BA101 may have added economic advantage over the use of glucose. Acetone butanol ethanol (ABE) was produced from 30 gL(-1) starch solution using a continuous process. The bioreactor was fed at a dilution rate of 0.02 h(-1) and starch solution/feed volume (3 L) was replaced every 72 h. The conti...

Bacteriophage infections in the industrial acetone butanol (AB) fermentation process.

The reported incidence and effects of bacteriophage infections occurring in the industrial acetone butanol (AB) fermentation processes operated in the USA, Japan, and Puerto Rico during the earlier part of the twentieth century is reviewed. The growth characteristics and solvent-producing ability of a lysogenic strain of Clostridium madisonii isolated from a phage infection in Puerto Rico was d...