Characterization of 3,4-DHPEA-EDA oxidation products in virgin olive oil by high performance liquid chromatography coupled with mass spectrometry

► VOO phenols such as 3,4-DHPEA-EDA was oxidised by enzymatic and Fenton reactions. ► The 3,4-DHPEA-EDA oxidation products were characterised by mass spectrometry. ► The oxidation products were found in VOO during the autoxidation process. ► 3,4-DHPEA-EDA oxidation involved also the terpenic structure of the molecule. ► Terpenic structure oxidation products were proposed as markers of VOO oxidation.