Fig. 1
From: Process engineering of pH tolerant Ustilago cynodontis for efficient itaconic acid production
Controlled high-density pulsed fed-batch fermentation of U. cynodontis ∆fuz7 at different pH values. a Yield in gITA g −1GLC (filled bars) and itaconate concentration (patterned bars) and b OD600 during fermentation in a bioreactor containing batch medium without yeast extract with 50 g L−1 glucose, and 0.8 g L−1 NH4Cl, pulsed twice with 50 mL of a 50% glucose stock, controlled at different pH values titrated with NaOH. Error bars indicate the deviation from the mean (n = 2) with the exception of the fermentation at pH 3.6, which shows a single representative culture