title: Volatile compounds produced in sterile fish muscle (Sebastes melanops) by Pseudomonas perolens.
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.
mesh_terms: D000438:Alcohols / Q000096:biosynthesis; D000440:Butanols / Q000096:biosynthesis; D002074:Butanones / Q000096:biosynthesis; D002849:Chromatography, Gas; D004123:Dimethylamines / Q000096:biosynthesis; D005396:Fish Products; D005506:Food Contamination; D005516:Food Microbiology; D013058:Mass Spectrometry; D008744:Methylamines / Q000096:biosynthesis; D009132:Muscles; D009812:Odorants; D011549:Pseudomonas / Q000254:growth & development / Q000378:metabolism*; D011719:Pyrazines / Q000096:biosynthesis; D013438:Sulfhydryl Compounds / Q000096:biosynthesis; D013440:Sulfides / Q000096:biosynthesis; D013696:Temperature; D014835:Volatilization
chemical_list: D000438:Alcohols; D000440:Butanols; D002074:Butanones; D004123:Dimethylamines; D008744:Methylamines; D011719:Pyrazines; D013438:Sulfhydryl Compounds; D013440:Sulfides