Agricultural and Biosystems Engineering Publications

Document Type

Article

Publication Date

1-2011

Journal or Book Title

Canadian Biosystems Engineering

Volume

53

First Page

3.9

Last Page

3.18

Abstract

Distillers dried grains with solubles (DDGS), a coproduct of ethanol fuel production, is used as an animal feed and often must be transported long distances. DDGS flowability problems often create nuisance in storage and transportation. Materials above the glass transition temperature (Tg) can exist in a "rubbery state," which is often responsible for particle agglomeration and caking. This study investigated the effects of varying condensed distillers solubles (CDS) (10, 15, and 20%, wb), drying (100, 200, and 300C), and cooling temperature (-12 and 35C) levels on the Tg of DDGS. Tg ranged from 34 to 58C and 41 to 59C for cooling temperatures of - 12C and 35C, respectively. Tg data were used to develop an overall regression model, which yielded a predictive model with R2 of 0.74 and SEM of 3.16. Using this model, optimum drying and cooling temperatures were determined. These conditions may be used to reduce flow problems.

Comments

This article is from Canadian Biosystems Engineering 53 (2011): 3.9–3.18.

Access

Open

Creative Commons License

Creative Commons Attribution 3.0 License
This work is licensed under a Creative Commons Attribution 3.0 License.

Copyright Owner

The authors

Language

en

File Format

application/pdf

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