Some Physical Properties of Distillers Dried Grains With Solubles (DDGS)
Authors:
Rosentrater, K.A. USDA, ARS
Source:
Applied engineering in agriculture. 2006 July, v. 22, no. 4, p. 589-595.
NALT Subjects:
distillers grains corn byproducts moisture content water activity thermal properties bulk density color thermal conductivity thermal diffusivity processing residues feed industry feed processing angle of repose
Other Subjects:
distillers dried grains with solubles thermal resistivity
Issue Date:
Jul-2006
Abstract:
With the rapid growth in the fuel ethanol industry in recent years, considerable research is being devoted to determining distillers dried grains with solubles (DDGS) nutritional properties and to optimizing their inclusion in livestock diets; physical properties of these materials, however, have been largely ignored. Using standard laboratory methods, several physical properties for typical DDGS streams were determined, including moisture content, water activity, thermal properties (conductivity, resistivity, and diffusivity), bulk density, angle of repose, and color. The DDGS samples in this study were golden-brown in color and exhibited physical properties similar to other dry feed ingredients, such as hominy feed, corn gluten feed, and other corn-based materials. As a first step, the numerical data generated during this study will help fill a current void in design information for the ethanol and livestock industries.
