Chemical Composition and Antioxidant, Antimicrobial, and Antiproliferative Activities of Cinnamomum zeylanicum Bark Essential Oil

Table 1

Chemical constituents of Cinnamomum zeylanicum bark essential oil.

Compounds	Retention time (min)	KI	%
α-Pinene	5.66	899	1.3
Benzaldehyde	6.40	963	0.3
p-Cymene	7.82	1025	1.9
Limonene	7.93	1075	1.2
Eucalyptol	8.08	1084	5.4
γ-Terpinene	8.66	1121	0.4
Linalool	9.86	1188	7
Isoborneol	11.64	1275	0.8
(E)-cinnamaldehyde	15.22	1414	71.5
Eugenol	16.90	1469	4.6
β-Caryophyllene	18.58	1518	6.4
Acetic acid, cinnamyl ester	19.23	1536	0.5
α-Humulene	19.47	1543	1.7
δ-Cadinene	20.97	1581	1.4
trans-Calamenene	21.10	1585	0.7
Caryophyllene oxide	22.61	1621	0.5
Benzyl benzoate	26.82	1710	0.5

KI: the Kovats retention indices relative to C8-C20 n-alkanes were determined on DB5 capillary column.