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Effect Of Die Dimensions On Extrusion Processing Parameters And Properties Of Ddgs-Based Aquaculture Feeds, Nehru Chevanan, Kasiviswanathan Muthukumarappan, Kurt A. Rosentrater, James L. Julson
Effect Of Die Dimensions On Extrusion Processing Parameters And Properties Of Ddgs-Based Aquaculture Feeds, Nehru Chevanan, Kasiviswanathan Muthukumarappan, Kurt A. Rosentrater, James L. Julson
Kurt A. Rosentrater
The goal of this study was to investigate the effect of die nozzle dimensions, barrel temperature profile, and moisture content on DDGS-based extrudate properties and extruder processing parameters. An ingredient blend containing 40% distillers dried grains with solubles (DDGS), along with soy flour, corn flour, fish meal, whey, mineral and vitamin mix, with a net protein content adjusted to 28% was extruded in a single-screw laboratory extruder using seven different die nozzles. Increasing moisture content of the ingredient mix from 15 to 25% resulted in a 2.0, 16.0, 16.3, 22.9, 18.5, 32.5, and 63.7% decrease, respectively, in bulk density, water-solubility …