Engineering Commons^™

Fractionation Techniques To Concentrate Nutrient Streams In Distillers Grains, Kurt A. Rosentrater, Deepa Subramanian, Padmanaban G. Krishnan

Kurt A. Rosentrater

Corn, the most widely produced feed grain in the United States, accounts for more than 90% of the total value and production of feed grains. It is also used for food, industrial materials, and fuel ethanol production. Distillers grains, the major coproduct from ethanol manufacturing, are used as livestock feed. There are, however, other potential options, including value-added food, industrial, chemical, and energy applications. Fractionating distillers grains into concentrated streams of protein, fiber, and fat may be key to facilitating these types of utilization. Previous studies on other products have shown that fractionation is a promising mechanism for extracting valuable …