Figure 3From: A comparison of three pH control methods for revealing effects of undissociated butyric acid on specific butanol production rate in batch fermentation of Clostridium acetobutylicum Effect of NaOAc buffering on butanol production by C. acetobutylicum (A: NaOAc buffering at initial pH 4.6; B NaOAc buffering at initial pH 5.0; C: NaOAc buffering at initial pH 5.6). Back to article page