Fig. 4
From: Process engineering of pH tolerant Ustilago cynodontis for efficient itaconic acid production
Controlled high density fed-batch fermentation of U. cynodontis NBRC 9727 ∆fuz7r ∆cyp3r PetefmttA Pria1ria1. glucose (■) and ammonium (▼) concentration; b CO2 concentration (continuous line) and OD600 (▲); c itaconate (●) and erythritol (∆) concentration during fermentation in a bioreactor containing batch medium with 200 g L−1 glucose, 4.0 g L−1 NH4Cl at pH 3.6 titrated with NaOH. The arrow indicates addition of 100 mL of 50% glucose. Error bars indicate the standard error from the mean (n = 3)