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Appl Environ Microbiol. 1973 February; 25(2): 257-261
Copyright © 1973 American Society for Microbiology. All Rights Reserved.

Volatile Compounds Produced in Sterile Fish Muscle (Sebastes melanops) by Pseudomonas perolens¹

Department of Food Science and Technology, Oregan State University, Corvallis, Oregon 97331

ABSTRACT

Volatile compounds produced by Pseudomonas perolens ATCC 10757 in sterile fish muscle (Sebastes melanops) were identified by combined gas-liquid chromatography and mass spectrometry. Compounds positively identified included methyl mercaptan, dimethyl disulfide, dimethyl trisulfide, 3-methyl-1-butanol, butanone, and 2-methoxy-3-isopropylpyrazine. Compounds tentatively identified included 1-penten-3-ol and 2-methoxy-3-sec-butylpyrazine. The substituted pyrazine derivative 2-methoxy-3-isopropylpyrazine was primarily responsible for the musty, potato-like odor produced by P. perolens.

¹ Technical Paper No. 3457, Oregon Agricultural Experiment Station, Oregon State University, Corvallis.