Chemical Composition of Essential Oils from Six Zanthoxylum Species and Their Repellent Activities against Two Stored-Product Insects
Table 2
Chemical composition of essential oils from the six Zanthoxylum species.
Compound
Relative content (%)
Identification
Z. armatum
Z. dimorphophyllum
Z. dimorphophyllum var. spinifolium
Z. piasezkii
Z. stenophyllum
Z. dissitum
Camphene
—
—
—
2.45
—
—
943
941
RI, MS
-Thujene
—
—
—
3.56
—
—
969
965
RI, MS
-Pinene
—
—
—
—
4.80
—
977
983
RI, MS, Co
3-Carene
8.88
—
—
0.62
8.30
—
1004
1006
RI, MS
Eucalyptol
—
—
—
74.87
—
—
1017
1037
RI, MS
4-Carene
2.48
—
—
—
—
—
1018
1014
RI, MS
-Phellandrene
3.96
—
—
—
—
—
1026
1029
RI, MS
-Terpinene
45.56
—
—
—
4.21
—
1044
1045
RI, MS
-Terpinene
3.23
—
—
0.34
—
—
1060
1065
RI, MS
neo-allo-Ocimene
—
—
—
—
3.02
—
1147
1144
RI, MS
Terpinen-4-ol
—
—
—
4.47
0.61
—
1162
1176
RI, MS
-Terpineol
—
—
—
4.57
—
—
1181
1191
RI, MS, Co
Estragole
—
—
—
—
5.19
—
1195
1191
RI, MS
Piperitone
33.47
0.85
0.12
—
—
—
1227
1221
RI, MS
-Pyronene
—
—
4.23
—
—
21.97
1250
1252
RI, MS
2-Undecanone
—
—
—
—
1.92
—
1265
1274
RI, MS
Bornyl acetate
—
—
—
—
10.05
—
1272
1277
RI, MS
Safrole
—
—
38.08
—
—
—
1285
1281
RI, MS
-Cubebene
—
6.75
—
—
12.05
—
1350
1359
RI, MS
-Copaene
—
—
—
—
0.43
—
1372
1375
RI, MS
Isoledene
—
—
—
—
1.81
—
1376
1371
RI, MS
Geranyl acetate
—
—
—
—
1.66
—
1379
1386
RI, MS
Methyl eugenol
—
6.21
23.49
—
—
—
1384
1387
RI, MS
-Elemene
—
4.89
0.18
0.41
11.44
1.02
1388
1398
RI, MS
-Caryophyllene
0.51
26.17
4.00
—
7.16
7.77
1414
1418
RI, MS
-Caryophyllene
—
3.78
0.28
1.15
2.48
4.65
1454
1453
RI, MS
-Muurolene
—
0.75
—
1.06
1.14
—
1465
1462
RI, MS
-Gurjunene
—
3.40
—
—
0.68
—
1474
1475
RI, MS
Germacrene D
—
—
0.84
—
5.73
20.98
1477
1479
RI, MS
2-Tridecanone
—
—
—
—
0.61
—
1481
1485
RI, MS
Valencene
—
0.79
—
—
—
—
1484
1481
RI, MS
-Farnesene
—
—
—
—
—
14.28
1505
1508
RI, MS
Myristicin
—
6.75
28.74
—
—
—
1513
1510
RI, MS
-Cadinene
—
8.58
—
1.21
7.27
17.15
1520
1524
RI, MS
Spathulenol
—
10.19
—
0.36
1.85
4.42
1563
1561
RI, MS
Nerolidol
—
—
—
—
2.85
—
1566
1564
RI, MS
Caryophyllene oxide
—
13.36
—
—
—
4.32
1583
1585
RI, MS
Viridiflorol
—
6.50
—
—
—
—
1592
1595
RI, MS
-Cadinol
—
—
—
0.53
—
—
1640
1643
RI, MS
Monoterpenoids
93.62
0.85
42.43
90.88
26.13
21.97
Sesquiterpenoids
4.47
85.16
5.30
4.19
54.89
74.59
Others
—
12.96
52.23
—
14.24
—
Total
98.09
98.97
99.96
95.07
95.26
96.56
, retention index of the chromatography determined on a HP-5MS column using the homologous series of -hydrocarbons as reference; , retention index reported in the literatures or libraries. method: RI, comparison of retention indices with published data; MS, comparison of mass spectra with those listed in the NIST 05 and Wiley 275 libraries and with published data; Co, coinjection with standard compound.