Core aspects of extrusion technology will be discussed and developed in this short course, taking into consideration the nuances of the processing of both petfoods and aquatic feeds. The three-day course covers the principles of extrusion, the design of extrusion processes for both aquatic feeds and petfoods, as well as how the formulation interacts with the extrusion process. Principles learned will be demonstrated using the extruder in the Centre for Feed Technology pilot plant. The program provides an in-depth background in general extrusion technology. The course is relevant to both single and twin-screw extrusion technology. The course will cover topics from the basics of extruders and their configuration, through what is happening chemically and physically inside the extruder barrel, to an understanding of extruder dies and extruder instability.
Topics covered include:
Principles of extruder configurations (single and twin screw)
• Role of rheology in extrusion
• Die types and effects, die design
• Extrusion chemistry – Recipe design
• Product density control
• Preconditioning for Extrusion
• Causes and effects of extruder instability
• Screw, barrel, and die-plate wear
• Extrusion troubleshooting
Examples in product formulation and the design of extrusion processes will be included to demonstrate application of the theory. Principles learned will be applied during the practical demonstration on Day two. Important aspects of peripheral systems (e.g. raw materials pre-processing, preconditioning) are also covered.
This program is relevant to technical staff interested in the formulation of extruded aquafeeds and dry petfoods and the use of extrusion technology for the production of these products. The program takes participants from the basics of what extrusion is and what it can do, through to a detailed understanding of the design of formulations and processes, and the operation and troubleshooting of extrusion systems. This short course is presented by Dennis Forte & Associates in conjunction with The Centre for Feed Technology (Fortek), Norway, and is taking place 15 April – 17 April, from 9am to 5:30pm at the Norwegian University of Life Sciences.
Published in the February 2024 issue of International Pet Food.