The constituents in TVEO were identified through gas chromatography
coupled to mass spectrometry e GCeMS (CGMS-QP2010
Ultra Shimadzu). Analysis through GCeMS was performed under
the following conditions: a RTX-5MS capillary column
(30 m 0.25 mm 0.25 mm); program temperature: 60e240 C
(3 C/min); injector temperature: 250 C; detector temperature:
220 C; carrier gas: helium adjusted to 0.99 mL/min speed; ionizing
energy: 70 eV; and mass range (m/z): 40e500. The spectra bank of
GC/MS, NIST/EPA/NIH Mass Spectral Database (Version 1.7) was
used to identify the individual essential oil constituents. The
quantification of the constituents was obtained after normalizing
the areas of each detected constituent, expressed as a percentage
area (%).