| abstract |
The present invention relates to a process for production of organic solvents, particularly acetone, butanol, ethanol using the anaerobic fermentation by butanol, acetone, and ethanol- producing bacteria. The process comprises saccharifying the pretreated plant material with enzymes which degrade or convert the material into soluble sugars, fermenting the sugars by butanol, acetone, ethanol producing bacteria in a fermentor at a nutrient medium, removing organic solvents and fermentation gases, recovering end product, wherein the saccharification and the fermentation are carried out in parallel, moreover an even rate is maintained for the saccharification and fermentation. |