초록 ▼

A process for producing ethanol in the substantial absence of fusel oils by Zymomonas fermentation wherein fermentation is carried out under conditions unfavorable for the growth and replication of yeast. In the preferred embodiment, Zymomonas are initially inoculated into a carbohydrate containing

A process for producing ethanol in the substantial absence of fusel oils by Zymomonas fermentation wherein fermentation is carried out under conditions unfavorable for the growth and replication of yeast. In the preferred embodiment, Zymomonas are initially inoculated into a carbohydrate containing medium undergoing active fermentation by yeast, then the fermentation conditions altered to inhibit growth and replication of yeast.

대표청구항 ▼

A process for converting a fermentable carbohydrate to ethanol comprising: (a) providing a culture medium containing a fermentable carbohydrate and yeast in the fermenting phase containing carbohydrate substrate fermentable by Zymomonas, wherein said culture medium does not contain any anti-Zymomona

A process for converting a fermentable carbohydrate to ethanol comprising: (a) providing a culture medium containing a fermentable carbohydrate and yeast in the fermenting phase containing carbohydrate substrate fermentable by Zymomonas, wherein said culture medium does not contain any anti-Zymomonas agents; (b) adding Zymomonas to said yeast containing culture medium; and (c) culturing the yeast-Zymomonas under anaerobic conditions at a pH of greater than about 4 to promote growth of the Zymomonas and not the yeast.