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Students in TSM 457X/557X worked in the Dry Processing Pilot Plant to learn about at mixer carryover.

Students in TSM 457X/557X worked in the Dry Processing Pilot Plant to learn about at mixer carryover.

Students in TSM 457X/557X get hands-on experience in pilot plant

Students enrolled in the new experimental course TSM 457X/557X Feed Safety, Ingredient Quality and Analytics worked in the Center for Crops Utilization Research Dry Processing Pilot Plant for a laboratory section of the class. They used a lab-scale ribbon mixer to examine mixer carryover. Mixer carryover is a food safety and food quality concern. Salt was used as an indicator in ground corn, which was run through the mixer at various salt and moisture concentrations. The practical feed safety concerns of mixer carryover were discussed in class, particularly those relevant to multi-species mills and mills producing medicated feeds. Carryover in these contexts must be managed and minimized to protect animal health and to ensure compliance with some existing regulations and some relatively new animal food rules, namely those that are part of the Food Safety Modernization Act. 

"Hands-on experience with equipment helps to solidify concepts taught in class and is valuable for students, especially those interested in entering into industry positions," said Erin Bowers, postdoctoral research associate in agricultural and biosystems engineering (ABE). Bowers and Charles Hurburgh, professor in ABE and professor-in-charge of the Iowa Grain Quality Initiative, are the instructors for TSM 457X/557.

This course is one of two created and offered for the first time in the 2017-2018 school year geared toward animal feed manufacturing, the other is TSM 455X/555X Feed Processing and Technology. Both classes benefited from use of the Dry Processing Pilot Plant to provide space and equipment for practical laboratory experiences for students.