| 摘要 |
A method is provided for producing butanol through microbial fermentation, in which the butanol product is removed during the fermentation by extraction into a water-immiscible organic extractant in the presence of at least one osmolyte at a concentration at least sufficient to increase the butanol partition coefficient relative to that in the presence of the osmolyte concentration of the basal fermentation medium and of an optional fermentable carbon source. The osmolyte may comprise a monosaccharide, a disaccharide, glycerol, sugarcane juice, molasses, polyethylene glycol, dextran, high fructose corn syrup, corn mash, starch, cellulose, and combinations thereof. Also provided is a method and composition for recovering butanol from a fermentation medium. |
