Storability of modified wet distillers grains with solubles
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Since 1905, the Department of Agricultural Engineering, now the Department of Agricultural and Biosystems Engineering (ABE), has been a leader in providing engineering solutions to agricultural problems in the United States and the world. The department’s original mission was to mechanize agriculture. That mission has evolved to encompass a global view of the entire food production system–the wise management of natural resources in the production, processing, storage, handling, and use of food fiber and other biological products.
History
In 1905 Agricultural Engineering was recognized as a subdivision of the Department of Agronomy, and in 1907 it was recognized as a unique department. It was renamed the Department of Agricultural and Biosystems Engineering in 1990. The department merged with the Department of Industrial Education and Technology in 2004.
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1905–present
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- Department of Agricultural Engineering (1907–1990)
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- College of Agriculture and Life Sciences (parent college)
- College of Engineering (parent college)
- Department of Industrial Education and Technology, (merged, 2004)
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Abstract
Distillers grains, a high-quality co-product from dry-grind ethanol production processes, is widely uses as a livestock feed both locally and internationally. However, the wet form of distillers grains deteriorates (i.e., undergoes dry matter loss-DML) rapidly during storage which affects overall management and utilization. There are several active research initiatives aimed at developing alternative preservation methods to retard storage losses thus extending the wet feed storage life to meet the fundamental principle of availability of feed during scarcity. And yet, data on wet distillers grains DML is highly limited. This study investigated the effect of 0.1% w/w CakeGuardTM preservative (propionic acid-based) and temperature (10°C, 20°C and 30°C) on modified wet distillers grains with solubles (MWDGS) DML under aerobic conditions during storage for 21 days. There was significant difference in DML with preservative treatment at 20°C and 30°C. Effect of temperature treatment was significant. Preservative and temperature interaction effect on DML was significant. Treated MWDGS DML after 21 days averaged 3.12%, 16.8% and 19.3% DML whereas untreated samples averaged 3.22%, 21.4% and 28.0% DML at 10°C, 20°C and 30°C respectively. Overall, the preservative helped maintain appearance and texture of the wet feed within the storage period. While further research is obviously necessary to define criteria for predicting storage losses, this study serves as a foundation for future investigations.