Therefore, as a first approach, a preliminary tasting of omelets using LWE as the only ingredient was chosen to determine whether 200 μL/L of each compound surpassed the threshold acceptability concentration in LWE. Fig. 3A shows that the incorporation of citral and carvacrol significantly decreased the hedonic score given to the control omelet (p b 0.05), so 200μL/L of both ICs surpassed the threshold of acceptable concentration in LWE when no additional ingredients were considered. However, the same concentration of lemon EO, mandarin EO, or (+)-limonene was regarded as sensorially acceptable in LWE,since they did not significantly decrease the acceptability of the control omelet.