کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
1184159 | 1492095 | 2016 | 7 صفحه PDF | دانلود رایگان |
• A novel vitamin E component α-tocodienol was elucidated.
• Vitamin E analysis by ultra-performance convergence chromatography.
• Excellent chromatographic resolution and precision in retention time.
• A rapid, simple, environmental friendly and economical analytical method.
• Can be developed into a mainstream analytical technique.
We have developed a method for analysing vitamin E using ultra-performance convergence chromatography with a chromatographic runtime of 5.5 min. A well-resolved chromatogram with excellent precision in retention time revealed seven vitamin E components in the palm oil derived tocotrienol-rich fraction. The major vitamin E components were α-tocopherol, α-tocotrienol, γ-tocotrienol and δ-tocotrienol whereas the minor vitamin E components were α-tocomonoenol, β-tocotrienol and an unreported trace component. The new component was positively identified by high-resolution mass spectrometry as 2-methyl-2(4′,8′,12′-trimethyltrideca-7′,11′-dienyl)5,7,8-trimethylchroman-6-ol or α-tocodienol.
Journal: Food Chemistry - Volume 196, 1 April 2016, Pages 367–373