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Vitamin E in vegetable oils as determined by RP- HPLC with UV detection (CROSBI ID 624070)

Prilog sa skupa u zborniku | izvorni znanstveni rad | međunarodna recenzija

Kenjerić, Daniela ; Bilić, Blanka ; Tomas, Ivan ; Cvijetić, Milica Vitamin E in vegetable oils as determined by RP- HPLC with UV detection // Proceedings 15th Ružička days TODAY SCIENCE - TOMORROW INDUSTRY / Šubarić, Drago ; Jukić, Ante (ur.). Osijek : Zagreb, 2015. str. 222-231

Podaci o odgovornosti

Kenjerić, Daniela ; Bilić, Blanka ; Tomas, Ivan ; Cvijetić, Milica

engleski

Vitamin E in vegetable oils as determined by RP- HPLC with UV detection

Vitamin E is the general term used to describe a group of eight natural isomers which along with vitamin A, D and K form the group of fat soluble vitamins. Vegetable oils are one of the most important dietary sources of vitamin E which, as antioxidant, prevents oil rancidity during storage thus prolonging its shelf-life. Among eight natural isomers belonging to this vitamin, α-tocopherol is the most active in vivo and the most represented in vegetable oils of green plants. Vitamin E presence in vegetable oils depends on the oil type, production process, freshness and storage conditions. The aim of this work was to determine concentrations of α-tocopherol in various edible vegetable oils. Rapid reverse- phase high-performance liquid chromatography method with apsorptiometric detector was used for determination. Fourteen edible vegetable oil types were analysed. Some of them, like sunflower and rapeseed oil, are widespread and commercially available while others have attracted scientific curiosity just recently and therefore data on their composition are scarce. Sunflower and chestnut oil had the highest amount of α-tocopherol, while amounts in linseed and chia oil were below the level of detection. Large differences in the content of α-tocopherol have been found between fresh cold pressed oil samples and commercial ones. This has been especially noted in sunflower oil in which degradation was additionally monitored during storage.

vegetable oils; RP-HPLC; vitamin E; alpha-tocopherol; dietary intake

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Podaci o prilogu

222-231.

2015.

objavljeno

Podaci o matičnoj publikaciji

Proceedings 15th Ružička days TODAY SCIENCE - TOMORROW INDUSTRY

Šubarić, Drago ; Jukić, Ante

Osijek : Zagreb:

978-953-7005-36-8

Podaci o skupu

15th Ružička days "TODAY SCIENCE – TOMMOROW INDUSTRY"

poster

11.09.2014-12.09.2014

Vukovar, Hrvatska

Povezanost rada

Prehrambena tehnologija