Synthesis and analysis of tocopheryl quinone and tocopherol esters with fatty acids in heated sunflower oil
The result's identifiers
Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F60461373%3A22330%2F15%3A43900669" target="_blank" >RIV/60461373:22330/15:43900669 - isvavai.cz</a>
Result on the web
<a href="http://dx.doi.org/10.1002/ejlt.201500218" target="_blank" >http://dx.doi.org/10.1002/ejlt.201500218</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1002/ejlt.201500218" target="_blank" >10.1002/ejlt.201500218</a>
Alternative languages
Result language
angličtina
Original language name
Synthesis and analysis of tocopheryl quinone and tocopherol esters with fatty acids in heated sunflower oil
Original language description
This work focuses on degradation of ?-tocopherol and formation of ?-tocopherol degradation products in sunflower oil heated at frying temperature. We determined the content and measured the kinetics of ?-tocopherol, ?-tocopheryl quinone, ?-tocopheryl fatty acid formation in heated sunflower oil without aeration (So) and in aerated oil (air flow 20 L/h) (SoAir). During 10 h of So oil heating, the ?-tocopherol was depleted and the content of ?-tocopheryl quinone in So grew from 3 to 84 mg/kg, as did the content of tocopherol free fatty acid esters from the initial 5 to 185 mg/kg. In SoAir oil, the rate constants of formation and decomposition of tocopherol degradation products were determined. Accelerated oxidation in SoAir caused depletion of the degradation products of tocopherol after 2 h of heating. The reason for this was significant oxidation and polymerization of fatty acids in SoAir oil. The unique features of this work are the syntheses and spectral analysis of tocopherol oxidat
Czech name
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Czech description
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Classification
Type
J<sub>x</sub> - Unclassified - Peer-reviewed scientific article (Jimp, Jsc and Jost)
CEP classification
GM - Food industry
OECD FORD branch
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Result continuities
Project
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Continuities
S - Specificky vyzkum na vysokych skolach
Others
Publication year
2015
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů
Data specific for result type
Name of the periodical
European Journal of Lipid Science and Technology
ISSN
1438-7697
e-ISSN
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Volume of the periodical
117
Issue of the periodical within the volume
neuveden k 29.2.2016
Country of publishing house
DE - GERMANY
Number of pages
15
Pages from-to
0 - 15
UT code for WoS article
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EID of the result in the Scopus database
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