Abstract
Experiments were conducted using radiolabeled acrylamide and liquid scintillation counting methods to determine how acrylamide monomer would partition during the solid/liquid separation and subsequent rendering of a poultry processing waste. Due to its nutritive value, the rendered solids from such a full-scale food processing waste operation could potentially be used as a component of animal feed. Previous studies were unable to directly measure acrylamide in the solids samples after separation. Based on the analytical data herein, ∼1% of the original radiolabel administered to the waste system was detected in the rendered solids. In a full-scale food processing waste operation, this would represent a maximum level of 0.3 ppb acrylamide in the final animal feed with more typical levels, reflecting industry use, being ∼0.05 ppb. These levels are an order of magnitude less than those calculated in the previous experiment, confirming the associated risk as de minimis.