Corn refining process

Details Corn refining process Corn refining process

2006-01-20

2008-11-18

Reifsnyder, David A (Department: 1797)

Sugar, starch, and carbohydrates

Processes

Carbohydrate manufacture and refining

C127S024000, C127S027000, C127S038000, C127S068000, C426S482000, C435S094000, C435S096000, C435S161000

Reexamination Certificate

active

07452425

ABSTRACT:
A grain containing starch, such as corn, is refined. The grain is steeped in water at a temperature of about 125 to 160° F., which water is essentially free of sulfurous acid and contains recycled enzymes from downstream processes, in a counter-current steeping reactor for about 10 to 20 hours to produce an aqueous slurry of steeped grain having a moisture content of about 40 to 50 percent. The various components of the grain are then separated and the starch is converted to ethanol.

REFERENCES:
patent: 4361651 (1982-11-01), Keim
patent: 6254914 (2001-07-01), Singh et al.

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