Fig. 1From: Periodic-peristole agitation for process enhancement of butanol fermentationTime course profiles of key fermentation parameters (dry cell weight, glucose, butanol, acetone, ethanol, lactate, butyrate, acetate, and pH) from PPG, TIG and SG. PPG represents periodic-peristole group, TIG represents traditional Rushton impeller agitation group, and SG represents stationary culture groupBack to article page