Formation and evolution of monoepoxy fatty acids in thermoxidized olive and sunflower oils and quantitation in used frying oils from restaurants and fried-food outlets

Journal of Agricultural and Food Chemistry
Joaquín VelascoC Dobarganes

Abstract

The formation and evolution of monoepoxy fatty acids, arising from oleic and linoleic acids, were investigated in olive oil and conventional sunflower oil, representatives of monounsaturated and polyunsaturated oils, respectively, during thermoxidation at 180 degrees C for 5, 10, and 15 h. Six monoepoxy fatty acids, cis-9,10- and trans-9,10-epoxystearate, arising from oleic acid, and cis-9,10-, trans-9,10-, cis-12,13-, and trans-12,13-epoxyoleate, arising from linoleic acid, were analyzed by gas chromatography after oil derivatization to fatty acid methyl esters. Considerable amounts, ranging from 4.29 to 14.24 mg/g of oil in olive oil and from 5.10 to 9.44 mg/g of oil in sunflower oil, were found after the heating periods assayed. Results showed that the monoepoxides quantitated constituted a major group among the oxidized fatty acid monomers formed at high temperature. For similar levels of degradation, higher contents of the monoepoxides were found in olive oil than in sunflower oil. Ten used frying oils from restaurants and fried-food outlets in Spain were analyzed to determine the contents of the monoepoxides in real frying oil samples. Levels ranged from 3.37 to 14.42 mg/g of oil. Results show that, for similar degradatio...Continue Reading

References

Jan 16, 2002·Current Opinion in Lipidology·Jeffrey S Cohn
Mar 16, 2002·European Journal of Clinical Investigation·R WilsonR A Riemersma
Feb 18, 2003·Current Opinion in Clinical Nutrition and Metabolic Care·Carmen Dobarganes, Gloria Márquez-Ruiz

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Citations

Feb 14, 2008·Journal of Oleo Science·Nagao TotaniYuko Ojiri
Jan 13, 2015·Journal of Pharmaceutical Sciences·Oleg V BorisovY John Wang
Aug 29, 2014·Molecular Nutrition & Food Research·Oriol A Rangel-ZuñigaAntonio Camargo
Apr 8, 2006·Food and Chemical Toxicology : an International Journal Published for the British Industrial Biological Research Association·Anja Fankhauser-NotiKoni Grob
Nov 23, 2005·Urologic Oncology·Janet Laura Colli, Albert Colli
Jun 3, 2015·Journal of Agricultural and Food Chemistry·Wei XiaMichael D Lumsden
Sep 5, 2020·Journal of Food Science·Ying LiuYuanfa Liu
Mar 25, 2019·Journal of Food Science and Technology·S Rubalya ValantinaR Aravindhan
May 11, 2016·Journal of Food Science and Technology·S Rubalya ValantinaM Suriya
Jul 1, 2017·Comprehensive Reviews in Food Science and Food Safety·Wei Xia, Suzanne M Budge
Jul 1, 2017·Comprehensive Reviews in Food Science and Food Safety·Antonia Chiou, Nick Kalogeropoulos
Mar 2, 2011·Journal of Agricultural and Food Chemistry·James N Seiber
Dec 7, 2006·Journal of Agricultural and Food Chemistry·Zhong HaiyanKevin Robards

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