The Aqua Feed Extrusion Conference #1
Twin screw extrusion processing in aqua feed- Benefits of twin-screw extrusion by Clextral, France The Aqua Feed Extrusion Conference, co-organised by International Aquafeed, Dr Mian Riaz of Texas A&M University and VIV is taking place again on March 23rd, 2020 at VICTAM and Animal Health and Nutrition Asia, Bangkok. This conference will feature a variety of industry expert speakers delivering innovative presentations on how users can make the best use of their extrusion machinery and aqua feed systems. Currently confirmed speakers include Andritz, Clextral, Jefo Nutrition, BĂźhler, Amandus Kahl and Wenger, to name a few. In this series, our conference speakers will be providing articles about the latest innovations in extrusion and nutrition processing technologies. To find out more about this conference please email Rebecca Sherratt (rebeccas@perendale.co.uk)
F
ish is known as a high value food for humans, with health benefits that include long chain unsaturated fatty acids, vitamins and minerals and a well-balanced protein supply. Therefore, fish feed processing technology plays a particularly important role to this industry. It requires: Easy adaptation to any change in rawmaterial composition: moisture content, lipid content, particle size distribution, de-mixing of powdered materials. These are due to various sources of raw materials (for example, soy flour can be purchased in many parts of the world), transport and storage conditions, grinding process Flexibility to adjust the sinking/floating properties of the granulates to follow as closely as possible the food habits of each
animal family Processing a wide range of recipes to respond to industry demand for foods with low or high amounts of lipids, vegetable proteins, or various sources of protein to meet the specific nutritional fish requests and adapt to rapid environmental fluctuations Flexibility to adjust the shear, cooking and shaping conditions in the extruder and apply precise drying and coating parameters during the entire production process Insuring a high hygienic standard, to avoid any contamination during the feed manufacturing process. Taking these considerations into account, combined with good manufacturing/breeding practices, scientific education and adapted legislation, we can nurture high quality aquatic animals that offer health benefits to people around the world–using local production to ensure low carbon footprints and maintain reasonable sales prices.
Co-rotating twin-screw extruder technology
Single screw extrusion technology has offered a simplified method of continuous cooking of doughs under controlled processing conditions for many decades. 60 years ago, some pioneers developed an alternative process:
22 | January 2020 - International Aquafeed