title: Quantitation of the main constituents of some authentic sesame seed oils of different origin.
abstract: This paper describes the composition of sesame seed oils obtained from seeds collected from five countries that are major suppliers of traded sesame seed oil. Oils were extracted from the seeds using small-scale industry pressing equipment and analyzed using standard methods for fatty acids, fatty acids in the triglyceride 2-position, tocopherols and tocotrienols, triglycerides, sterols, steradienes, and iodine value. Values for the composition of the sterols, triglycerides, fatty acids, iodine value, and tocopherol composition were generally in good agreement with the results published elsewhere. All of the oils from roasted seeds contained low levels of the sterol degradation products stigmasta-3,5-diene and campesta-3,5-diene, which were probably formed by dehydration of the parent sterols during roasting.
authors.affiliation: Central Science Laboratory, Sand Hutton, York YO411LZ, United Kingdom. c.crews@csl.gov.uk
authors.forename: Colin
authors.initials: C
authors.lastname: Crews
authors.forename: Patrick
authors.initials: P
authors.lastname: Hough
authors.forename: Paul
authors.initials: P
authors.lastname: Brereton
authors.forename: John
authors.initials: J
authors.lastname: Godward
authors.forename: Michelle
authors.initials: M
authors.lastname: Lees
authors.forename: Sebastien
authors.initials: S
authors.lastname: Guiet
authors.forename: Wilfried
authors.initials: W
authors.lastname: Winkelmann
mesh_terms: D004777:Environment; D005227:Fatty Acids / Q000032:analysis; D005511:Food Handling / Q000379:methods; D006358:Hot Temperature; D007455:Iodine / Q000032:analysis; D010840:Phytosterols / Q000032:analysis; D012715:Sesame Oil / Q000737:chemistry*; D031685:Sesamum / Q000254:growth & development; D024505:Tocopherols / Q000032:analysis; D024508:Tocotrienols / Q000032:analysis; D014280:Triglycerides / Q000032:analysis
chemical_list: D005227:Fatty Acids; D010840:Phytosterols; D024508:Tocotrienols; D014280:Triglycerides; D012715:Sesame Oil; D007455:Iodine; D024505:Tocopherols