Study on the high concentration ethanol fermentation of potato

High gravity fermentation is an important step of alcohol fuel ethanol. The different factors affect the High gravity fermentation of potato. The optimal conditions of the high gravity fermentation of potato were summed up as follows: the proportion of materials and water was 1∶3.0, the recruitment of glucoamylase was 150 U/g, the pH value was 4.5, the amount of inoculation was 6%. Eventually, the ethanol degree of the high gravity fermentation of potato was 14.90%.