Corn Liquefaction Maximized for Ethanol Production

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At present, corn pericarp is obtained through static fractionation and is liquefied using a combination of enzymes. It is usually difficult to utilize this pericarp to make ethanol in a corn dry mill without making changes to the equipment and operating conditions. The distiller's dried grains with solubles (DDGS), which contain pericarp, goes through steps of acid hydrolysis and fermentation and would usually be cooked or preprocessed.

To eliminate these extra steps, researchers at Purdue University have found a way to maximize the concentration of the slurry that is obtained from the enzyme modified corn pericarp. The major change is that liquefaction would occur before thermal pretreatment; therefore, it would minimize any protein composition changes to the corn pericarp. This would increase liquefaction to high enough concentrations, making it suitable for ethanol production. Thus, it avoids major capital investments and provides a path for conversion of corn to ethanol with less equipment in these facilities.

-Maximized concentration of corn slurry
-Minimizes protein changes
-Increases liquefaction for ethanol production

Potential Applications:
-Agriculture industry
-Biofuel production
Nov 9, 2016
United States

Apr 28, 2015
United States
Purdue Office of Technology Commercialization
1801 Newman Road
West Lafayette, IN 47906

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