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Research Article

Table 1

Chemical characterisation of essential oil from leaves of Ocimum campechianum.

No. Componenta Area%b RI expc RI litd
1 α-pinene 0.7 929 932
2 camphene 0.1 944 946
3 sabinene 0.3 967 969
4 β-pinene 1.2 973 974
5 myrcene 0.3 987 988
6 p-cymene 0.5 1021 1020
7 o-cymene 0.4 1025 1023
8 1,8-cineole 11.4 1028 1026
9 cis-ocimene 8.0 1032 1032
10 linalool 2.9 1101 1095
11 allo-ocimene 0.1 1126 1128
12 α-terpineol 0.4 1193 1186
13 δ-elemene 0.6 1337 1335
14 eugenol 18.6 1363 1356
15 α-copaene 0.5 1376 1374
16 elemene isomer 0.4 1383
17 β-elemene 8.9 1388 1389
18 β-caryophyllene 17.0 1410 1416
19 γ-elemene 0.5 1427 1434
20 trans-α-bergamotene 0.4 1431 1435
21 α-caryophyllene 4.5 1451 1452
22 allo-aromadendrene 1.5 1455 1458
23 germacrene D 0.4 1477 1484
24 β-selinene 1.8 1484 1489
25 viridiflorene 0.2 1489 1696
26 bicyclogermacrene 9.0 1490 1500
27 germacrene A 1.4 1500 1508
28 germacrene B 1.4 1556 1559
29 spathulenol 1.9 1576 1577
30 caryophyllene oxide 1.7 1581 1582
Total identified 97.2
a

Components are listed in order of elution and their nomenclature is in accordance with the NIST 05 (National Institute of Standards and Technology) Mass Spectral Library.

b

Relative peak areas, calculated by GC-FID.

c

RI exp: linear retention indices calculated on a VF-5 MS column.

d

RI lit: linear retention indices [2].

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