The essential oils were analyzed using a Shimadzu GC–MSQP5050A fitted with a fused silica SBP-5 (30 m×0.25 mm I.D.;
0.25 m film thickness) capillary column (composed of 5% phenylmethylpolysiloxane) and temperature programmed as follow:
60–240 ◦C at 3 ◦C/min