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Table 4 Composition of feed co-products a from ethanol processing scenarios, assuming 86% dry grind with 50% skimming oil and 14% wet milling

From: Land usage attributed to corn ethanol production in the United States: sensitivity to technological advances in corn grain yield, ethanol conversion, and co-product utilization

 

Distillers dried grains with solubles

Corn gluten feed

Corn gluten meal

 

Protein (%)

Fat (%)

Protein (%)

Fat (%)

Protein (%)

Fat (%)

Baselineb

27.35

9.67

17.39

4.21

58.25

4.74

Individual processes:

      

  Conventional dry grind, no oil skimming

27.30

10.43

n/a

n/a

n/a

n/a

  Conventional dry grind, with oil skimming

27.40

8.90

n/a

n/a

n/a

n/a

  Wet milling

n/a

n/a

17.39

4.21

58.25

4.74

Scenario 5: Full starch conversion

29.10

10.28

17.39

4.21

58.25

4.74

Scenario 6: Complete fiber conversion plus full starch conversion

28.58

10.10

17.39

4.21

58.25

4.74

  1. aExpressed on a commercial or ‘as is’ basis. Dry matter contents of 89.31%, 87.13%, and 90.04% for DDGS, CGF, and CGM, respectively[40]. bWeighted industry averages.