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Int. J. Mol. Sci. 2007, 8(6), 533-540; doi:10.3390/i8060533
Article

Irradiation Effect on Oxidative Condition and Tocopherol Content of Vegetable Oils

1,* , 1
,
2
 and
2
1 Department of Food Technology, Technological Educational Institution (T.E.I.) of Larissa, Karditsa, GR-43100, Greece 2 Department of Food Technology, Technological Educational Institution (T.E.I.) of Athens, Egaleo, Athens, GR-12210, Greece
* Author to whom correspondence should be addressed.
Received: 30 April 2007 / Accepted: 22 May 2007 / Published: 15 June 2007
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Abstract

The effect on induction period and tocopherol content after γ-irradiation onsamples of olive oil and seed oils (sunflower and soybean) was determined. In seed oilsamples 0, 100, 200 and 300 ppm of δ-tocopherol were added before irradiation with 1, 2and 3kGy. The results of induction period showed that, after irradiation, all samplespresented a significant decreased in resistance to oxidation. However, this decrease wasminimized when δ-tocopherol was added. Irradiation significantly decreased the level oftocopherols. δ-Tocopherol appeared more sensitive in irradiation process than α- andγ-tocopherol. The addition of δ-tocopherol significantly reduced, in most cases, thedepletion of the other tocopherols.
Keywords: γ-irradiation; lipids; oxidation; tocopherol. γ-irradiation; lipids; oxidation; tocopherol.
This is an open access article distributed under the Creative Commons Attribution License (CC BY 3.0).
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Lalas, S.; Gortzi, O.; Tsaknis, J.; Sflomos, K. Irradiation Effect on Oxidative Condition and Tocopherol Content of Vegetable Oils. Int. J. Mol. Sci. 2007, 8, 533-540.

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Int. J. Mol. Sci. EISSN 1422-0067 Published by MDPI AG, Basel, Switzerland RSS E-Mail Table of Contents Alert