Wax ester composition of monovarietal olive oils from Designation of Origin (DO) “Campos de Hellin”

The wax ester composition of six monovarietal olive oils (Arbequina, Benizal, Cornicabra, Cuquillo, Manzanilla, and Picual) from Designation of Origin (DO) “Campos de Hellin” (Spain) were analysed, to obtain a more complete characterisation of these varietal oils. The analyses were carried out by on-line liquid chromatography–gas chromatography (LC–GC) using the Through Oven Transfer Adsorption Desorption (TOTAD) interface. The oil made with Arbequina variety had the highest content of total wax ester (84.4 ± 4.3 mg/kg) and Picual oil the lowest (35.5 ± 3.7 mg/kg). The data obtained were analysed statistically; significant differences in C40, C44, C46 and total wax esters were found, with a level of confidence of 95%.