Drying Characteristics of Distillers Wet Grains Under Varying Condensed Distillers Solubles and Drying Temperature Levels

dc.contributor.author Bhadra, Rumela
dc.contributor.author Rosentrater, Kurt
dc.contributor.author Muthukumarappan, Kasiviswanathan
dc.contributor.author Kannadhason, Sankaranandh
dc.contributor.department Department of Agricultural and Biosystems Engineering (ENG)
dc.date 2018-02-13T03:53:20.000
dc.date.accessioned 2020-06-29T22:42:50Z
dc.date.available 2020-06-29T22:42:50Z
dc.date.copyright Sat Jan 01 00:00:00 UTC 2011
dc.date.embargo 2012-12-10
dc.date.issued 2011-01-01
dc.description.abstract <p>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 R2= 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.</p>
dc.description.comments <p>This article is from <em><a href="http://elibrary.asabe.org/abstract.asp?aid=39558&t=3&dabs=Y&redir=&redirType=" target="_blank">Applied Engineering in Agriculture</a></em> 27, no. 5 (2011): 777–786.</p>
dc.format.mimetype application/pdf
dc.identifier archive/lib.dr.iastate.edu/abe_eng_pubs/81/
dc.identifier.articleid 1078
dc.identifier.contextkey 3525470
dc.identifier.s3bucket isulib-bepress-aws-west
dc.identifier.submissionpath abe_eng_pubs/81
dc.identifier.uri https://dr.lib.iastate.edu/handle/20.500.12876/1613
dc.language.iso en
dc.source.bitstream archive/lib.dr.iastate.edu/abe_eng_pubs/81/Rosentrater_2011_DryingCharacteristicsDistillers.pdf|||Sat Jan 15 02:06:00 UTC 2022
dc.subject.disciplines Agriculture
dc.subject.disciplines Bioresource and Agricultural Engineering
dc.subject.keywords CDS
dc.subject.keywords DDGS
dc.subject.keywords DWG
dc.subject.keywords Desorption
dc.subject.keywords Drying
dc.subject.keywords Moisture content
dc.subject.keywords Moisture ratio
dc.subject.keywords Page model
dc.title Drying Characteristics of Distillers Wet Grains Under Varying Condensed Distillers Solubles and Drying Temperature Levels
dc.type article
dc.type.genre article
dspace.entity.type Publication
relation.isAuthorOfPublication ae6468d9-2286-48ad-9293-5cfa893ea5f3
relation.isOrgUnitOfPublication 8eb24241-0d92-4baf-ae75-08f716d30801
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