Chemical constituents and antimicrobial activities of the essential oils from Sedum pallidum var. bithynicum and S. spurium grown in Turkey

Figures & data

Table 1.  Screening results of antimicrobial activities of the essential oils from S. pallidum var. bithynicum and S. spurium.

Microorganisms	MIC (μg/mL)
	S. pallidum var. bithynicum	S. spurium	Ampicillin	Fluconazole
Escherichia coli	1000	500	8
Yersinia pseudotuberculosis	2000	1000	32
Klebsiella pneumoniae	2000	1000	32
Pseudomonas aeruginosa	2000	1000	32
Enterococcus faecalis	1000	500	2
Staphylococcus aureus	1000	500	2
Bacillus cereus	> 6000	> 3000	< 1
Candida albicans	2000	1000		< 1
Candida tropicalis	2000	1000		8

Table 2.  Identified components in the essential oils of S. pallidum var. bithynicum and S. spurium.

No.	Lit. RI	Exp. RI	Compound	A^a % Area	B^a % Area
1	939	940	α-Pinene^b	1.4	1.8
2	954	952	Camphene^b	1.8	2.7
3	998	998	2-Pentylfuran	0.5	-
4	1042	1044	Benzene acetaldehyde	-	0.5
5	1068	1066	n-Octanol	0.7	0.3
6	1097	1096	Linalool^b	-	3.1
7	1101	1103	n-Nonanal	9.4	3.0
8	1134	1136	Terpineol	-	0.7
9	1169	1171	1-Nonanol	0.3	-
10	1189	1186	α-Terpinol	-	2.2
11	1196	1193	Mrytenal	1.4	1.2
12	1196	1197	Myrtenol	1.2	-
13	1202	1203	n-Decanal	1.3	1
14	1253	1254	Geraniol^b	-	0.4
15	1270	1271	Decanol	1.4	-
16	1280	1281	Nopol	-	0.4
17	1290	1292	Thymol	0.4	-
18	1299	1299	Carvacrol	0.3	-
19	1307	1305	Undecanal	0.2	-
20	1317	1315	(2E,4E)-Decadienal	1.9	2.9
21	1375	1373	α-Ylangene	-	1.1
22	1377	1376	α-Copaene	1.9	-
23	1400	1400	n-Tetradecane^b	-	0.7
24	1408	1406	Longifolene	0.4	0.8
25	1419	1418	β-Caryophyllene	1.9	-
26	1441	1442	Aromadendrene	3.5	0.7
27	1455	1453	Geranyl acetone	0.8	3.6
28	1457	1456	trans-β-Farnesene	-	2.3
29	1460	1460	allo-Aromadendrene	-	3.8
31	1481	1482	α-Curcumene	1.7	-
30	1485	1483	Germacrene D	0.9	1.9
32	1489	1487	trans-β-Ionone	1.2	-
33	1500	1500	n-Pentadecane^b	-	0.6
34	1505	1504	Cuparene	0.4
35	1507	1508	β-Bisabolene	3.7	-
36	1523	1523	β-Sesquiphellandrene	4.5	2.3
37	1523	1525	δ-Cadinene	-	4.7
38	1569	1567	Ledol	0.7	0.7
39	1583	1582	Caryophyllene oxide	12.8	-
40	1585	1585	Globulol	1.8	0.7
41	1613	1610	Tetradecanal	3.2	-
42	1647	1645	Cubenol	-	1.8
43	1651	1649	β-Eudesmol	-	0.9
44	1654	1655	α-Cadinol	-	1.1
45	1676	1675	Caryophyllenol-II	1.7	-
46	1686	1688	a-Bisabolol	6.8	-
47	1691	1690	trans-α-Bergamotol	0.9	1.6
48	1700	1700	n-Heptadecane^b	1.2	1.3
49	1713	1711	Curcumen-15-al	1.7	-
50	1800	1800	n-Octadecane^b	-	0.6
51	1845	1845	Hexahydrofarnesyl acetone	3.4	15.7
52	1914	1916	Farnesyl acetone	0.9	2.9
53	2057	2056	Manool	2.3	-
54	2114	2113	(Z)-Phytol	2.9	10.2
			Total isolate	83.4	80.2
Aliphatic monoterpenes				3.2	4.5
Oxygenated monoterpenoids				5.3	11.6
Sesquiterpenes				18.9	15.3
Sesquiterpenoids				30.7	27.7
Diterpenoids				5.2	10.2
Others				20.1	10.9
The common compounds				39.8	55.3

RI, retention index; A, Sedum pallidum var. bithynicum; B, Sedum spurium.

^aCompounds are listed in order of elution. RI values are calculated from retention times relative to those of n-alkanes (C₆-C₃₂) on the non-polar HP-5 column.

^bIdentified with authentic samples.