PRODUCTION OF FOOD GRADE DISTILLERS DRIED GRAINS

摘要

The invention provides methods and processes that can be used to process industrial FDDG to food grade FDDG (FDDG). The FDDG product is substantially reduced of color, is high in protein and fiber, is odor-neutral, and is safe for human consumption. The present invention further provides processing schemes to minimize FDDG variability, and to insure uniform food functionality traits. The invention also provides novel and effective applications and uses of Supercritical CO2 extraction in the preparation of the FDDG product.

主权项

1. A process for preparing a food grade distillers dried grain (FDDG) product, comprising,
a) steeping an amount of distillers dried grains (DDG) or distillers dried grains with solubles (DDGs) with an amount of a food grade first solvent to create a slurry, wherein the weight to volume ratio of solids to solvent is 1:1, b) stirring the slurry continuously for an amount of time; c) removing the first solvent from the solids; d) adding second amount of the first solvent to the solids create a slurry, wherein the weight to volume ratio of solids to solvent is 1:1, and stirring the slurry continuously for an amount of time; e) removing the first solvent from the solids; f) repeating steps d) and e) one or more times; g) washing the solids with an amount of a food grade second solvent for an amount of time; h) removing the second solvent from the solids; i) repeating steps g) and h) one or more times; j) drying the solids to remove the second solvent; and k) milling the washed, dried solids to a uniform size, wherein the result is a food grade distillers dried grain (FDDG) product.