Biotechnology Letters, Vol.25, No.6, 465-468, 2003
Optimization of cell growth and poly(glutamic acid) production in batch fermentation by Bacillus subtilis
Poly( glutamic acid) was produced maximally by Bacillus subtilis in batch fermentations at pH 7 and using glycerol at 20 g l(-1) in a glutamic acid/citric acid medium. Poly(glutamic acid) reached 23 g l(-1) after 30 h.