Anti-Inflammatory Effects of Siegesbeckia orientalis Ethanol Extract in In Vitro and In Vivo Models

Table 2

Chemical compositions of SOE analyzed by GC-MS.

No.	Component	Rt (min)^a	R. match	Percentage (%)^b
1	2-Oxabicyclo2,2,2octane-6-ol	20.72	763	1.8
2	2-tert-Butyl-1,4-dimethoxy-benzene	23.13	805	3.8
3	Caryophyllene	23.59	866	3.1
4	cis--Bisabolene	26.57	860	4.1
5	[−]-Spathulenol	27.62	853	25.7
6	Caryophyllene oxide	27.95	858	46.9
7	cis-Lanceol	29.28	719	1.7
8	[Z,Z,Z]-9,12,15-Octadecatrienoic acid ethyl ester	32.49	736	1.2
9	6,10,14-Trimethyl-2-pentadecanone	33.53	790	2.1
10	Hexadecanoic acid ethyl ester	36.93	794	9.6

^aRetention time (min).
^bRelative percentage calculated by integrated peak area.