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Determination of tocopherols in vegetable oils
Abstract
A rapid (ten minute) and selective method for measuring individual tocopherols found in vegetable oils has been developed using High Performance Liquid Chromatography (HPLC) with ultraviolet absorbance detection. The samples are analyzed directly following dissolution in the mobile phase. α ‐and γ‐tocopherols are quantitated based upon their peak areas relative to standard calibration curves. The measurement of β ‐ and δ‐tocopherols in the samples is also based upon the calibration data for the α ‐ and δ‐tocopherol standards since the individual β‐ and δ‐ standards were unavailable. The data obtained are compared with the total tocopherol content as found by a standard colorimetric procedure. The results indicate the HPLC method to be more reliable in the measurement of samples with high α ‐tocopherol levels. Soybean, safflower, sunflower, cottonseed, corn, peanut and olive oils have been examined using this method.
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Cited by
Carocho, M., & Ferreira, I. C. F. R. (2013) · Food and Chemical Toxicology · doi:10.1016/j.fct.2012.09.021 · Cited by 1,661
Antioxidant activity of tocopherols and phenolic compounds of virgin olive oil
Baldioli, M., Servili, M., Perretti, G., & Montedoro, G. F. (1996) · Journal of the American Oil Chemists' Society · doi:10.1007/bf02523530 · Cited by 522
Antioxidant properties of several commercial mushrooms
Yang, J.-H., Lin, H.-C., & Mau, J.-L. (2002) · Food Chemistry · doi:10.1016/s0308-8146(01)00342-9 · Cited by 481
Antioxidant Properties of Several Medicinal Mushrooms
Mau, J.-L., Lin, H.-C., & Chen, C.-C. (2002) · Journal of Agricultural and Food Chemistry · doi:10.1021/jf0201273 · Cited by 364
Antioxidant Properties of Methanolic Extracts from Several Ear Mushrooms
Mau, J.-L., Chao, G.-R., & Wu, K.-T. (2001) · Journal of Agricultural and Food Chemistry · doi:10.1021/jf010637h · Cited by 276
Metadata
- Authors
- Carpenter, A. P.
- Venue
- Journal of the American Oil Chemists' Society
- Publisher
- Wiley
- Published
- 1979-07
- Volume
- 56
- Issue
- 7
- Pages
- 668-671
- ISSN
- 0003-021X (ISSN-L)
- 1558-9331
- OpenAlex
- W2038560956
- Cited by
- 242
- References
- 0
- FWCI
- 5.67
- Type
- journal article
- Language
- en
- Open access
- closed
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