title: Identification of 2-ethyl-4-methyl-3-thiazoline and 2-isopropyl-4-methyl-3-thiazoline for the first time in nature by the comprehensive analysis of sesame seed oil.
abstract: Toasted sesame seed oil was comprehensively analyzed. It was extracted using the SAFE (Solvent-Assisted Flavor Evaporation) technique. The extract was analyzed by GC and GC-MS on 2 phases and a total of 87 components were identified, confirmed, and are presented in this paper. The major components were methylpyrazine; 2,5-dimethylpyrazine; 2,6-dimethylpyrazine; 2-ethyl-3,6-dimethylpyrazine; furfuryl alcohol; and guaiacol. In addition, as part of this analysis, 2-ethyl-4-methyl-3-thiazoline and 2-isopropyl-4-methyl-3-thiazoline were confirmed as being present in a natural product for the first time. Their identification, confirmation, and sensory evaluation have been documented here.
authors.affiliation: International Flavors & Fragrances Inc., 1515 Highway 36, Union Beach, NJ 07735, USA.
authors.forename: David
authors.initials: D
authors.lastname: Agyemang
authors.forename: Kathryn
authors.initials: K
authors.lastname: Bardsley
authors.forename: Sharon
authors.initials: S
authors.lastname: Brown
authors.forename: Kenneth
authors.initials: K
authors.lastname: Kraut
authors.forename: Linda
authors.initials: L
authors.lastname: Psota-Kelty
authors.forename: Laurence
authors.initials: L
authors.lastname: Trinnaman
mesh_terms: D005410:Flame Ionization; D005511:Food Handling; D005663:Furans / Q000032:analysis; D008401:Gas Chromatography-Mass Spectrometry; D006139:Guaiacol / Q000032:analysis; D006358:Hot Temperature; D006801:Humans; D057230:Limit of Detection; D009682:Magnetic Resonance Spectroscopy; D015416:Maillard Reaction; D015394:Molecular Structure; D009812:Odorants; D011719:Pyrazines / Q000032:analysis; D012639:Seeds / Q000737:chemistry*; D012677:Sensation; D012715:Sesame Oil / Q000737:chemistry*; D031685:Sesamum / Q000737:chemistry*; D013649:Taste; D013844:Thiazoles / Q000032:analysis* / Q000138:chemical synthesis / Q000737:chemistry
chemical_list: C560530:2-ethyl-4-methyl-3-thiazoline; C560531:2-isopropyl-4-methyl-3-thiazoline; D005663:Furans; D011719:Pyrazines; D013844:Thiazoles; D006139:Guaiacol; D012715:Sesame Oil; C012986:furfuryl alcohol