earticle

영어

The generation of acetone, butanol and ethanol (ABE) by C. acetobutylicum was monitored using batch cultures exposed to different concentrations of ferulic acid. It was found that 0.5 g/L ferulic acid led to an improved solventogenesis, with as much as a 6-fold increase in the production of butanol and acetone. It was also found that these cultures had a higher optical density, better glucose utilization and higher pH.
Further tests were performed using structurally similar compounds, including coumaric acid and cinnamic acid, to better understand the mechanism leading to this enhances solventogenic activity. Initial results hint that hydroxymethyl group(s) present on the benzyl ring may play a significant role in this induction.