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Effect of Moisture content and Soluble levels on the Physical and Chemical Properties of DDGS

Published by the American Society of Agricultural and Biological Engineers, St. Joseph, Michigan

Citation:  Paper number  056110,  2005 ASAE Annual Meeting . (doi: 10.13031/2013.20125) @2005
Authors:   V. Ganesan, Kurt A. Rosentrater, K. Muthukumarappan
Keywords:   Bridging, Caking, DDGS, Granular Powders, Moisture, RH, Storage, Temperature

Over the past few decades, researches concerning handling and storage characteristics of bulk solids have been conducted to a large extent. Distillers Dried Grains with Solubles (DDGS) are a bulk material that has been widely used as a protein source for ruminants and non-ruminants for more than two decades. Distillers grains are energy dense as they contain high fat levels. With the exponential growth of the fuel ethanol industry in the past several years, significant quantities of distillers grains are now being produced. To effectively utilize these feeds in the domestic market, however, these coproduct streams are increasingly being transported greater distances, and must be stored until final use. DDGS flow is often problematic as it can become restricted by caking and bridging which occurs during transportation and storage. This issue probably results from storage moisture, temperature, relative humidity, particle size, time, or temperature variations. The objective of this phase of the study is to examine the effect of various moisture content levels (10, 15, 20, 25, 30% db) on the resulting physical and chemical properties of DDGS with varying soluble percentages (10, 15, 20, 25% db).

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