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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.