GC-MS	Gas chromatography–mass spectrometer
VOCs	Key volatile organic compounds
CEOP	Essential oil from cinnamon bark
CEOY	Essential oil from cinnamon leaf
OAV	The odor activity value
PCA	Principal component analysis
OPLS-DA	Orthogonal partial least-squares discrimination analysis
QDA	Quantitative descriptive analysis
ORs	Olfactory receptors
TRPA1	Transient receptor potential A1
TRPV1	Transient receptor potential vanilloid 1
RMSD	Root mean square deviation
RMSF	Root mean square fluctuation
HB	Hydrogen bonds
Rg	Radiuses of gyration
SASA	Solvent accessible surface area