About This Report:
During this research, selective extraction of Dried Distillers Grains with Solubles (DDGS) produced several valuable materials. Using a process developed at the Natural Resources Research Institute and patented by the University of Minnesota, the following materials were produced from DDGS:
- Corn oil
- Biodiesel by esterification of extracted corn oil
- Simple sugars suitable as feed ingredients
- Additional ethanol by fermentation of extracted sugars
- High Protein Distillers Grains (HPDG), containing 34% protein and 2% oil
- Corn Zein
Several valuable materials can be obtained from DDGS using the selective extraction process. This process may be economically attractive to corn dry-grind ethanol plants.
The patented process described in this project may increase the value of the coproducts from dry grind ethanol plants. Additionally, production of multiple products may provide a more robust business model for ethanol production.