The carrier gas (helium) had 0.9 mL/ min flow. Ionization was obtained by electron impact at 70 eV and mass spectral data were acquired in the scan mode in the m/z range 35e450. The identification compounds were performed by comparing their retention time and mass spectra with NIST library.
Authentic standards (SIGMA?St. Louis, MO, USA) were also used to help identification process. Terpenoid component quantification was performed according to Dambolena et al. (2010).