Partitioning Behavior and Off‐Flavor Thresholds in Cookies from Plastic Packaging Film Printing Ink Compounds

Abstract

ABSTRACT Absolute off‐flavor thresholds were determined for six solvents in a high fat cookie by a combination of sensory evaluation and gas chromatographic analysis for solvents. Thresholds at 25°C were toluene (1.2 ppm), butanone‐2 (5 ppm), ethyl acetate (7 ppm), hexane (24 ppm), propanol‐2 (37 ppm), 2‐methoxy ethanol (63 ppm). Partition coefficients were also determined for these solvents in the cookies and in polypropylene packaging film to estimate the concentration in the film that could produce off‐flavor in the cookies.