Table 1.
Chemical composition of T. zygis essential oil.
| No | RI (Lit.) | RI (Calc.) a | Rt b | Compound c | % |
|---|---|---|---|---|---|
| Monoterpenes | 96.1 | ||||
| monoterpene hydrocarbons | 34.3 | ||||
| 1 | 926 | 924 | 7.22 | Tricyclene | 0.1 |
| 2 | 930 | 927 | 7.32 | α-thujene | 0.4 |
| 3 | 939 | 935 | 7.60 | α-pinene | 3.8 |
| 4 | 954 | 951 | 8.16 | Camphene | 1.7 |
| 5 | 967 | 954 | 8.28 | Verbenene | tr d |
| 6 | 975 | 972 | 8.98 | Sabinene | 0.8 |
| 7 | 979 | 976 | 9.17 | β-pinene | 0.9 |
| 8 | 990 | 987 | 9.62 | β-myrcene | 4.9 |
| 9 | 1000 | 999 | 10.18 | m-mentha-1(7),8-diene | 0.1 |
| 10 | 1002 | 1001 | 10.28 | α-phellandrene | 0.4 |
| 11 | 1011 | 1003 | 10.36 | δ-3-carene | tr |
| 12 | 1017 | 1012 | 10.75 | α-terpinene | 3.2 |
| 13 | 1024 | 1021 | 11.13 | p-cymene | 6.9 |
| 14 | 1029 | 1026 | 11.36 | Limonene | 2.7 |
| 15 | 1029 | 1027 | 11.39 | β-phellandrene | 0.3 |
| 16 | 1050 | 1042 | 12.15 | (E)-β-ocimene | 0.3 |
| 17 | 1059 | 1056 | 12.84 | γ-terpinene | 6.5 |
| 18 | 1088 | 1084 | 14.40 | Terpinolene | 1.3 |
| oxygenated monoterpenes | 61.8 | ||||
| monoterpene epoxides | 2.9 | ||||
| 19 | 1031 | 1028 | 11.47 | 1,8-cineole | 2.4 |
| 20 | 1086 | 1087 | 14.53 | trans-linalool oxide (furanoid) | 0.3 |
| 21 | 1244 | 1241 | 21.51 | methyl ether carvacrol | 0.2 |
| monoterpene alcohols | 56.4 | ||||
| 22 | 1070 | 1069 | 13.55 | cis-sabinene hydrate | 1.0 |
| 23 | 1096 | 1108 | 15.68 | Linalool | 38.0 |
| 24 | 1121 | 1130 | 16.65 | cis-p-menth-2-en-1-ol | 0.2 |
| 25 | 1133 | 1149 | 17.53 | 1-terpineol | 0.2 |
| 26 | 1160 | 1168 | 18.46 | Isoborneol | tr |
| 27 | 1169 | 1177 | 18.91 | Borneol | 3.5 |
| 28 | 1177 | 1186 | 19.33 | 4-terpineol | 10.1 |
| 29 | 1182 | 1189 | 19.51 | p-cymen-8-ol | 0.1 |
| 30 | 1188 | 1196 | 19.87 | α-terpineol | 2.0 |
| 31 | 1216 | 1220 | 20.77 | trans-carveol | tr |
| 32 | 1229 | 1226 | 20.99 | Nerol | tr |
| 33 | 1290 | 1291 | 23.35 | Thymol | 1.1 |
| 34 | 1299 | 1297 | 23.61 | Carvacrol | 0.2 |
| monoterpene ketones | 1.9 | ||||
| 35 | 1146 | 1153 | 17.72 | Camphor | 1.5 |
| 36 | 1192 | 1197 | 19.96 | cis-dihydro carvone | 0.2 |
| 37 | 1205 | 1206 | 20.31 | Verbenone | 0.2 |
| monoterpene aldehydes | tr | ||||
| 38 | 1267 | 1270 | 22.57 | geranial | tr |
| monoterpene esters | 0.6 | ||||
| 39 | 1285 | 1285 | 23.13 | bornyl acetate | 0.2 |
| 40 | 1349 | 1348 | 25.12 | α-terpinyl acetate | 0.1 |
| 41 | 1361 | 1360 | 25.48 | neryl acetate | tr |
| 42 | 1381 | 1379 | 26.07 | geranyl acetate | 0.3 |
| sesquiterpenes | 2.6 | ||||
| sesquiterpene hydrocarbons | 2.3 | ||||
| 43 | 1388 | 1384 | 26.23 | β-bourbonene | tr |
| 44 | 1390 | 1389 | 26.39 | β-elemene | tr |
| 45 | 1419 | 1421 | 27.29 | trans-caryophyllene | 2.0 |
| 46 | 1434 | 1434 | 27.63 | α-trans-bergamotene | tr |
| 47 | 1441 | 1440 | 27.79 | aromadendrene | tr |
| 48 | 1454 | 1457 | 28.26 | α-humulene | tr |
| 49 | 1484 | 1476 | 28.77 | α-amorphene | tr |
| 50 | 1496 | 1491 | 29.20 | viridiflorene | tr |
| 51 | 1500 | 1496 | 29.33 | bicyclogermacrene | 0.1 |
| 52 | 1500 | 1498 | 29.39 | α-muurolene | tr |
| 53 | 1505 | 1507 | 29.62 | β-bisabolene | tr |
| 54 | 1513 | 1519 | 29.89 | γ-cadinene | 0.2 |
| oxygenated sesquiterpenes | 0.6 | ||||
| sesquiterpene alcohols | 0.1 | ||||
| 55 | 1578 | 1579 | 31.38 | spathulenol | 0.1 |
| sesquiterpene epoxides | 0.5 | ||||
| 56 | 1582 | 1585 | 31.52 | caryophyllene oxide | 0.2 |
| non-terpenic compounds | 0.5 | ||||
| ketones | 0.1 | ||||
| 57 | 983 | 983 | 9.45 | 3-octanon | 0.1 |
| alcohols | 0.4 | ||||
| 58 | 991 | 993 | 9.90 | 3-octanol | tr |
| 59 | 1110 | 1109 | 15.72 | hotrienol | 0.4 |
| total | 99.2 |
a Values of retention indices on HP-5MS column; b Retention time on HP-5MS column; c Identified compounds; d tr-compounds identified in amounts less than 0.1%.