Table 1: Chemical constituents of different parts of cinnamon [136] (Vangalapati et al., 2012 [2]).

Part of the plantCompound

LeavesCinnamaldehyde: 1.00 to 5.00%
Eugenol: 70.00 to 95.00%

BarkCinnamaldehyde: 65.00 to 80.00%
Eugenol: 5.00 to 10.00%

Root barkCamphor: 60.00%

Fruittrans-Cinnamyl acetate (42.00 to 54.00%)
and caryophyllene (9.00 to 14.00%)

C. zeylanicum budsTerpene hydrocarbons: 78.00%
alpha-Bergamotene: 27.38%
alpha-Copaene: 23.05%
Oxygenated terpenoids: 9.00%

C. zeylanicum flowers(E)-Cinnamyl acetate: 41.98%
trans-alpha-Bergamotene: 7.97%
Caryophyllene oxide: 7.20%