ELECTROCHEMICAL STUDIES ON FERMENTATION .2. DETERMINATION OF ELECTRO-ENERGIZING CONDITIONS FOR L-GLUTAMIC ACID FERMENTATION

The most effective electro-energizing fermentation (E-E F) conditions for L-glutamate (l- Glu) production by Brevibacterium flavum No. 2247 were determined. The adding of 0.01 him neutral red at the beginning of cultivation was found most effective. A 1.5 V direct current was applied to the culture broth at 6 - 8 hr after inoculation in the cathode compartment, l- Glu was produced at 51.0 mg per ml, and this is about a 15% increase in yield compared to the yield of the not electro-energizing (E-E) control (44.3 mg/ml). © 1979 Taylor & Francis Group, LLC.