Patent ID: 8927239
Filing Date: 2015-01-06
Classification: C12P,Y02E

Abstract:
1. A process for improving the yield and efficiency of an ethanol fermentation plant comprising: receiving fermentable corn-based feedstock material; destructing fatty acids present in the fermentable corn-based feedstock material prior to fermentation by adding one or more enzymes to the corn-based feedstock material, wherein the one or more enzymes are selected to destruct fatty acids present in the corn-based feedstock material and include a decarboxylase; fermenting the feedstock with yeast to produce ethanol; producing stillage as a by-product of ethanol fermentation; separating the stillage into thin stillage and wet distillers grain; directly introducing at least a portion of the wet distillers grain to an anaerobic digester to produce methane; and recovering digestate solids from the anaerobic digester as cattle feed.