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Abbreviations α-T alpha-tocopherol APX ascorbate peroxidase GST

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Abstract  

Alpha-tocopherol (vitamin E) is the most widely used antioxidant for edible oils. The present investigation presents its effect on the thermal degradation behavior of edible oils (sunflower, soybean, and their blend) through the use of dynamic thermogravimetry. The study is based on the comparison of activation energies of decomposition process which were subsequently calculated using preferred and reliable multiple-heating rate methods viz. Kissinger, Friedman, Ozawa–Flynn–Wall, and Coats–Redfern (modified). It is concluded that the role of alpha-tocopherol as antioxidant at higher temperature is nearly accomplished.

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. 38 251 255 Donchenko, G. V., Petrova, G. V., Kapralov, A. A.: Effect of alpha tocopherol and nuclear tocopherol-binding proteins on DNA polymerase

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, O. P., Taylor, P. R. (1996) α-Tocopherol and β-carotene supplements and lung cancer incidence in the alpha-tocopherol, beta-carotene cancer prevention study: effects of baseline characteristics and study compliance. J. Natl. Cancer Inst. 88 , 560

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. 3 Albanes, D., Heinonen, O. P., Taylor, P. R., et al.: Alpha-tocopherol and beta-carotene supplements and lung cancer incidence in the alpha-tocopherol, beta-carotene cancer prevention

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. Determination of alpha-tocopherol in plasma by high performance liquid chromatography with fluorescence detection and stability of alpha-tocopherol under different conditions . Arzneimittel-Forschung-Drug Research 54 : 376 – 381

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., Greiff, H., Brodda, K., Hafner, G. and Bassler, K. H. (1986): Rapid determination of vitamin A (retinol) and vitamin E (alpha-tocopherol) in human serum by isocratic adsorption HPLC. Int. J. Vit. Nutr. Res. 56, 319-327. Rapid

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. 21 487 493 Schmitt, A. S., Salvayre, R., Delchambre, J., Négre-Salvayre, A.: Prevention by alpha-tocopherol and rutin of glutathione and ATP

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Hungarian Medical Journal
Authors: Janos Feher, Balint Kovacs, Illes Kovacs, Monika Schvöller, and Corrado Balacco Gabrieli

Albanes, D., Heinonen, O. P., Taylor, P. R. et al.: Alpha-Tocopherol and beta-carotene supplements and lung cancer incidence in the alpha-tocopherol, beta-carotene cancer prevention study: effects of base-line characteristics and study compliance. J

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Acta Alimentaria
Authors: J. Juskiewicz, M. Wróblewska, K. Zhaki, Z. Zdunczyk, and L. Hussein

9 168 175 Cuesta Sanz, D. & M. Castro Santa-Gruz, M. (1986): Simultaneous measurment of retinol and alpha-tocopherol in human serum by high

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