Drying characteristics of distillers wet grains under varying condensed distillers solubles and drying temperature levels

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dc.contributor.author Bhadra, Rumela
dc.contributor.author Rosentrater, Kurt A.
dc.contributor.author Muthukumarappan, Kasiviswanathan
dc.contributor.author Kannadhason, Sankaranandh
dc.date.accessioned 2014-04-28T21:11:53Z
dc.date.available 2014-04-28T21:11:53Z
dc.date.issued 2014-04-28
dc.identifier.uri http://hdl.handle.net/2097/17654
dc.description.abstract Distillers dried grains with solubles (DDGS) has been shown to be an excellent livestock feed ingredient, and it is produced by the fuel ethanol industry, which is primarily located in the Midwest United States. There is a growing need to transport DDGS over long distances via rail, but this can often be hampered by poor flowability when unloading. DDGS is formed by combining condensed distillers solubles (CDS) with distillers wet grain (DWG) and then drying at high temperatures. It is hypothesized that drying conditions can affect resulting DDGS chemical, physical, and flow properties, but there is currently little quantified information about drying behavior of these coproducts. Thus, the objective of this study was to investigate the moisture desorption patterns of DWG for three CDS addition levels [10%, 15%, and 20% wet basis (wb)] at three drying temperatures (100 ° C, 200 ° C, and 300 ° C), to thus produce DDGS. Several mathematical models (Page, Newton, Pilosof, Henderson-Pabis, and others) were used to fit the observed moisture data over time. A new comprehensive model was developed for moisture ratio versus time (the best fit had R ² = 0.91, SEM = 0.17) using a modified Page model which accounted for varying CDS and temperature levels. The developed model will be useful to predict moisture content values of DDGS for various drying times, CDS addition levels, and drying temperatures, and will thus be a benefit to industrial processing conditions. en_US
dc.language.iso en_US en_US
dc.relation.uri http://elibrary.asabe.org/azdez.asp?JID=3&AID=39558&CID=aeaj2011&v=27&i=5&T=1&redirType= en_US
dc.rights Copyright 2011 American Society of Agricultural and Biological Engineers en_US
dc.subject CDS en_US
dc.subject DDGS en_US
dc.subject DWG en_US
dc.subject Desorption en_US
dc.subject Drying en_US
dc.subject Moisture content en_US
dc.subject Moisture ratio en_US
dc.subject Page model en_US
dc.title Drying characteristics of distillers wet grains under varying condensed distillers solubles and drying temperature levels en_US
dc.type Article (publisher version) en_US
dc.date.published 2011 en_US
dc.citation.epage 786 en_US
dc.citation.issue 5 en_US
dc.citation.jtitle Applied Engineering in Agriculture en_US
dc.citation.spage 777 en_US
dc.citation.volume 27 en_US
dc.contributor.authoreid rbhadra en_US


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