South Dakota State University

college of agriculture & biological sciences

Cereal Quality Lab: Food Grade Dried Distillers Grains

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The SDSU Plant Science Department website is maintained by Julia Fausti in accordance with SDSU guidelines.

Last updated 16 December 2009

Cereal Quality Laboratory

Laboratory Equipment

Soybean End Use

Food Grade Dried Distillers Grains

Selenium Wheat

White Wheat

Goal: Research will address what physical and chemical properties can be enhanced to raise the stature of DDG and DDGS as food ingredient.

 

Corn continues to be a major substrate for use in ethanol production.  As the ethanol industry continues to grow, large quantities of residues are also generated that need to be exploited for economic benefit.

 

As feed markets become saturated, new avenues and markets need to be explored. Human foods appear to be a natural fit. Starch, a constituent representing 80% of the kernel is removed in ethanol processing leaving behind essentially all of the nutrients that existed previously in the kernel. Some technical hurdles will need to be overcome for acceptance of DDG as a food ingredient.  These are overcome by systematic research and in documentation of specifications and standards applicable to the food ingredient industry.

Protein and fiber remain the principal constituents in DDGS. However, new technologies being employed to recover germ and protein sources ahead of the fermentation process are likely to alter the composition and functionality of DDG and DDGS downstream of the ethanol production process. 

Corn oil removal for industrial applications also may affect DDG quality. A new understanding is needed about DDGS protein and fiber chemistry for value enhancement efforts. In order to move DDGS into mainstream human food, pharmaceutical and industrial markets, the issue of food functionality must be addressed.

Funding: The research project was funded by SD Wheat Commission, SD Crop Improvement Association, SD Foundation Seeds, SDSU Plant Science Department, and the SD Agricultural Experiment Station.

 

Additional information:

Fortifying Chapathies, an Asian Whole Wheat Unleavened Flat Bread, using Corn Distillers Dried Grains (.pdf)