A novel, repeated fed-batch, ethanol production system with extremely long term stability achieved by fully recycling fermented supernatants

作者：Lu X; Li YF; Duan ZY; Shi ZP^*; Mao ZG

来源：Biotechnology Letters, 2003, 25(21): 1819-1826.

DOI：10.1023/A:1026265513392

• ethanol production
• minimum wastewater discharge
• repeated fed-batch
• Saccharomyces
• soluble inhibitors
• supernatant recycle

Using Saccharomyces cerevisiae, a novel, repeated fed-batch ethanol production system from corn flour by fully recycling fermented supernatants is demonstrated. With recovery of ethanol by evaporation coupled with consecutive removal of the insoluble and soluble inhibitory substances accumulated, either completely or partially by filtration, the concentrations of the soluble inhibitors in the system could be maintained at their equilibria. As a result, a sustained high concentration of ethanol (up to 15% v/ v) and significant pollution control performance were obtained.

• 出版日期2003-11
• 单位江南大学; 长江大学