Simultaneous Determination of Free Phytosterols and Tocopherols in Vegetable Oils by an Improved SPE–GC–FID Method

In this work, a simple and rapid SPE–GC–FID method for simultaneous determination of free tocopherols and phytosterols in vegetable oils was developed. The use of this SPE approach for the extraction of naturally occurring tocopherols and phytosterols provides advantages such as simplicity, high spe...

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Published inFood analytical methods Vol. 13; no. 2; pp. 358 - 369
Main Authors Xu, Baocheng, You, Sicong, Zhou, Lu, Kang, Huaibin, Luo, Denglin, Ma, Hongyan, Han, Sihai
Format Journal Article
LanguageEnglish
Published New York Springer US 01.02.2020
Springer Nature B.V
Subjects
Analytical Chemistry
Chemistry
Chemistry and Materials Science
Chemistry/Food Science
Corn
Edible oils
Food Science
Microbiology
Oils & fats
Phytosterols
Rapeseed
Sunflowers
Tocopherols
Vegetable oils
Vegetables
Vitamin E
Tocopherols
Vegetable oils
GC
Solid-phase extraction
Phytosterols
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Summary:In this work, a simple and rapid SPE–GC–FID method for simultaneous determination of free tocopherols and phytosterols in vegetable oils was developed. The use of this SPE approach for the extraction of naturally occurring tocopherols and phytosterols provides advantages such as simplicity, high speed, and ease of use. The whole method was validated, and the limits of detection of tocopherols and phytosterols were 0.05 and 0.03 mg/100 g of oil, respectively. The precisions for the determination of tocopherols and phytosterols in vegetable oils were < 10.1% in relative standard deviations. The recoveries of selected tocopherols and phytosterols spiked at low, middle, and high concentrations ranged from 83.4 to 97.7%. The developed approach was successfully applied to the analysis of free tocopherols and phytosterols in rapeseed, sunflower seed, linseed, sesame, and maize oils.
ISSN:1936-9751
1936-976X
DOI:10.1007/s12161-019-01649-7