International Journal of Analytical Chemistry

Research Article

Chemical and Antimicrobial Analyses of Juniperus chinensis and Juniperus seravschanica Essential Oils and Comparison with Their Methanolic Crude Extracts

Table 1

Chemical composition of the essential oils extracted from the leaves of J. chinensis and J. seravschanica analysed using the HS-SPME-GCMS approach.


No.	Components	Formula	CAS	Class of components^a	J. chinensis		J. seravschanica
No.	Components	Formula	CAS	Class of components^a	Retention index	Contents^b (%)	Retention index	Contents^b (%)

1	Alpha-pinene	C₁₀H₁₆	80-56-8	MT	932	27.2	939.53	33.12
2	Sabinene	C₁₀H₁₆	3387-41-5	MT	948	15.2	974.9	0.05
3	Isolongifolan-8-ol	C₁₅H₂₆O	1139-08-8	STO	1593	3.4	1547.49	0.15
4	Beta-pinene	C₁₀H₁₆	127-91-3	MT	948	1.1	979.92	0.96
5	Gamma-elemene	C₁₅H₂₄	29873-99-2	ST	948	0.4	1306.7	0.18
6	3-Cyclohexen-1-ol	C₁₂H₂₀O₂	9/4/4821	NT	1327	0.32	9.43	0.08
7	Alpha-thujene	C₁₀H₁₆	2/5/2867	MT	928.34	18.6	—	—
8	Beta-myrcene	C₁₀H₁₆	123-35-3	MT	993.82	17.82	—	—
9	Cis-caryophyllene	C₁₅H₂₄	6753-98-6	ST	1418.43	3.9	—	—
10	3-Carene	C₁₀H₁₆	554-61-0	MT	1014.74	1.8	—	—
11	Amyl ethyl ketone	C₈H₁₆O	106-68-3	NT	939.53	1.6	—	—
12	(-)-Beta-elemene	C₁₅H₂₄	33880-83-0	ST	897	0.8	—	—
13	4-Ethylbenzoic acid, cyclopentyl ester	C₁₄H₁₈O	7779-65-9	NT	1114.87	0.4	—	—
14	Cis-3-hexenol leaf alcohol	C₆H₁₂O	928-96-1	NT	1114.87	0.4	—	—
15	Cis-4-hexen-1-ol	C₆H₁₂O	821-41-0	NT	1573.08	0.33	—	—
16	4-Methoxy-2-methylbut-1-ene	C₆H₁₂O	34752-58-4	NT	1127.31	0.32	—	—
17	Amyl vinyl carbinol	C₈H1₆O	106-68-3	NT	1114.87	0.32	—	—
18	Alpha-humulene	C₁₅H₂₄	6753-98-6	ST	1452.52	0.27	—	—
19	Guaiol	C₁₅H₂₆O	489-86-1	NT	1082	0.2	—	—
20	1-Octen-3-ol	C₁₀H₂₀O	18479-51-1	NT	1652.21	0.2	—	—
21	3-Cyclohepten-1-one	C₆H₈O	4096-34-8	NT	1652.21	0.2	—	—
22	Hemellitol	C₉H₁₂	526-73-8	NT	1650	0.18	—	—
23	Beta-eudesmol	C₁₅H₂₆O	473-15-4	STO	1650	0.16	—	—
24	Cyclopropane	C₁₀H₁₆	68998-21-0	MT	928	0.15	—	—
25	Safrole	C₁₀H₁₆O	19894-97-4	MTO	1191	0.13	—	—
26	Alpha-phellandrene	C₁₀H₁₆	99-83-2	MT	1018.49	0.11	—	—
27	Bicyclo[3.1.0]hex-2-ene	C₁₀H₁₆	5/2/2867	NT	924.09	0.1	—	—
28	2-Amino-5-methylbenzoic acid	H₂NC₆H₃(CH₃)CO₂H	2941-78-8	NT	1286.23	0.1	—	—
29	3-Octen-2-ol	C₈H₁₆O	76649-14-4	NT	1092	0.1	—	—
30	Alpha,4-Dimethylstyrene	C₁₀H₁₂	1195-32-0	MTO	1073	0.1	—	—
31	Bicyclo[2.2.1]heptan-7-one	C₁₀H₁₆O	464-48-2	MTO	1139.69	0.1	—	—
32	Bicyclo[4.1.0]hept-2-ene	C₁₀H₁₆	554-61-0	MT	948	0.1	—	—
33	Cis-3-hexen-1-ol	C₁₂H₂₀O₂	9/4/4821	NT	1127.31	0.1	—	—
34	Cyclofenchene	C₁₀H₁₆	488-97-1	MT	729	0.1	—	—
35	Cyclohexane	C₁₂H₁₈	74742-35-1	NT	1148	0.1	—	—
36	Methyl-d3-1-dideuterio-2-propenyl ether	C₄H₅D₃O	29366-08-3	NT	855.37	0.1	—	—
37	Origanene	C₁₀H₁₆	2/5/2867	MT	902	0.1	—	—
38	DL-Limonene	C₁₀H₁₆		MT	—		1037.28	45.21
39	Myrcene	C₁₀H₁₆	123-35-3	MT	—		993.82	8.3
40	(+)-3-Carene	C₁₀H₁₆	13466-78-9	MT	—		1014.74	2.81
41	Cis-calamenene	C₁₅H₂₂	72937-55-4	STO	—		1306.7	0.94
42	Beta-caryophyllene	C₁₅H₂₄	87-44-5	ST	—		1418.43	0.9
43	Alpha-copaene	C₁₅H₂₄	3856-25-5	ST	—		993.82	0.49
44	Bornylene	C₁₀H₁₆	464-17-5	MT	—		908.64	0.36
45	Delta-cadinene	C₁₅H₂₄	483-76-1	ST	—		1512.77	0.34
46	Caryophyllene oxide	C₁₅H₂₄O	1139-30-6	STO	—		1579	0.33
47	Alpha-muurolene	C₁₅H₂₄	1983-22-9	ST	—		974.9	0.3
48	Beta-elemene	C₁₅H₂₄	515-13-9	ST	—		1306.7	0.3
49	Alpha-terpinene	C₁₀H₁₆	99-86-5	MT	—		1018.49	0.25
50	Alpha-terpineol	C₁₀H₁₈O	20126-76-5	MTO	—		1640.05	0.25
51	Alpha-fenchene	C₁₀H₁₆	471-84-1	MT	—		950.57	0.23
52	Germacrene B	C₁₅H₂₄	28387-44-2	ST	—		1547.59	0.23
53	2,4(10)-Thujadiene	C₁₀H₁₄	36262-09-6	MTO	—		928.34	0.2
54	Alpha-campholene aldehyde	C₁₀H₁₆O	515-00-4	MTO	—		1513.45	0.2
55	Alpha-humulene	C₁₅H₂₄	6753-98-6	ST	—		948.64	0.2
56	Camphene	C₁₀H₁₆	79-92-5	MT	—		950.57	0.2
57	Beta-bourbonene	C₁₅H₂₄	5208-59-3	ST	—		908.64	0.16
58	Carvone	C₁₀H₁₄O	2244-16-8	OM	—		1244.05	0.15
59	Trans-pinocarveol	C₁₀H₁₆O	547-61-5	MTO	—		1139.69	0.15
60	Cis-(+)-carveol	C₁₀H₁₆O	2102-59-2	MTO	—		1219.54	0.14
61	Beta-phellandrene	C₁₅H₂₄	54324-03-7	ST	—		1547.59	0.13
62	Gamma-cadinene	C₁₅H₂₄	483-74-9	ST	—		1522.53	0.11
63	Terpinolene	C₁₀H₁₆	586-62-9	MT	—		1091.32	0.11
64	Beta-cubebene	C₁₅H₂₄	17699-14-8	ST	—		1308.8	0.1
65	Bornyl acetate	C₁₂H₂₀O₂	76-49-3	NT	—		1286.23	0.1
66	Germacrene-D	C₁₅H₂₄	37839-63-7	ST	—		1573.08	0.1
67	Tricyclene	C₁₀H₁₆	508-32-7	MT	—		924.09	0.03

^a Monoterpenes (MT), monoterpenoids (MTO), sesquiterpenes (ST), sesquiterpenoids (STO), diterpenes (DT) and other nonterpene components (NT). ^bThe relative peak area normalization content obtained from the chromatogram.