Four pseudombnad cultures (one P. putida one nonpigmented, and two P. fluorescens) were isolated from spohed chicken breasts held at 2-6°C for 14 days. Each culture was grown on psychrotroph-free chicken skin for 14 days at 2-6'C. The volatiles produced by each organism were separated by high-resolution gas chromatography and identified by mass spectrometry. Some of the more significant volatile spoilage compounds produced by these microorganisms were sulfur-containing, e.g. methanethiol, dimethyl sulfide, propylene sulfide, and dimethyl disulfide.