Abstract

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 mat 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 51.0mg per ml, and this is about a 15% increase in yield compared to the yield of the not electro-energizing (E-E) control (44.3mg/ml).

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