title: Inhibitory Effect of Dihydrosphingosine with α-Tocopherol on Volatile Formation during the Autoxidation of Polyunsaturated Triacylglycerols.
abstract: The effect of dihydrosphingosine (d18:0) on triacylglycerol (TAG) oxidation was examined with and without α-tocopherol. Three types of TAG from fish, linseed, and soybean oil were oxidized at 50°C to determine the effect of dihydrosphingosine (d18:0) with or without α-tocopherol on triacylglycerol (TAG) oxidation. The analysis of oxygen consumption and total volatile formation demonstrated a small effect of d18:0 on TAG oxidation in the absence of α-tocopherol. On the other hand, the combination of d18:0 with α-tocopherol showed strong antioxidant activity and completely inhibited volatile formation within 1400 h for soybean oil TAG, 650 h for linseed oil TAG, and 380 h for fish oil TAG.
authors.affiliation: Faculty of Fisheries Sciences, Hokkaido University.
authors.forename: Mariko
authors.initials: M
authors.lastname: Uemura
authors.forename: Ako
authors.initials: A
authors.lastname: Shibata
authors.forename: Masashi
authors.initials: M
authors.lastname: Hosokawa
authors.forename: Ai
authors.initials: A
authors.lastname: Iwashima-Suzuki
authors.forename: Makoto
authors.initials: M
authors.lastname: Shiota
authors.forename: Kazuo
authors.initials: K
authors.lastname: Miyashita
mesh_terms: D000975:Antioxidants / Q000737:chemistry*; D008968:Molecular Conformation; D010084:Oxidation-Reduction; D013110:Sphingosine / Q000031:analogs & derivatives* / Q000737:chemistry; D014280:Triglycerides / Q000737:chemistry*; D055549:Volatile Organic Compounds / Q000138:chemical synthesis* / Q000737:chemistry; D024502:alpha-Tocopherol / Q000737:chemistry*
chemical_list: D000975:Antioxidants; D014280:Triglycerides; D055549:Volatile Organic Compounds; D024502:alpha-Tocopherol; D013110:Sphingosine; C005682:safingol