Formation of Epoxy Fatty Acids in Triacylglycerol Standards during Heating
Kazuya Nishimura, Xiannan Huang, Aya Yoshinaga-Kiriake, Yuna Yahata, Seiya Tanaka, Naohiro Gotoh, Kazuaki Yoshinaga
Abstract
Epoxy fatty acid formation during heating was estimated using triolein (OOO) and trilinolein (LLL). Epoxy octadecanoic acids were found in heated OOO, while epoxy octadecenoic acids were found in heated LLL. The content of epoxy fatty acids increased with heating time, and trans-epoxy fatty acids were formed significantly more than cis-epoxy fatty acids. A comparison between OOO and LLL indicated that epoxy fatty acid formation was higher in the OOO than that in the LLL. Heating tests in the presence of α- tocopherol suggested that the formation of epoxy fatty acids could be suppressed by antioxidants.
Topics & Concepts
EpoxyChemistryTrioleinFatty acidOrganic chemistryOleic acidTocopherolAntioxidantFood scienceBiochemistryLipaseVitamin EEnzymeFree Radicals and AntioxidantsPolymer composites and self-healingAdvanced Chemical Sensor Technologies