Dried Distillers Grains with Solubles (DDGS)
DDGS, the most common byproduct, are the dried residue remaining after the starch fraction of corn is fermented with selected yeasts and enzymes to produce ethanol and carbon dioxide. After complete fermentation, the alcohol is removed by distillation and the remaining fermentation residues are dried. Drying the Distillers Grains increases the shelf life and improves the distance it can be transported.
Wet Distillers Grains with Solubles (WDGS)
WDGS (also known as wetcake) is readily consumed by cattle and has a high energy concentration. WDGS adheres well to dry particles of other feeds, increasing palatability and homogeneity to the diet. The moisture of the product can reduce diet sorting when fed to cows.
Corn Syrup (Condensed Corn Distillers Solubles – CCDS) is made from condensing the thin stillage through an evaporation step. Thin stillage is a liquid product with a solid percentage between 7 and 10%. Through evaporation, we condense the thin stillage and make a 35 to 42% CCDS. The water that is driven off in the evaporative process is then reused in the cook process of the plant. The CCDS is then added back to the wetcake and ran through the dryer to make DDGS or the CCDS is added to wetcake and sold as WDGS.
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