Table 8.
Volatile metabolites identified from the n-hexane extracts of the four Solanaceous plants (Capsicum, Tobacco, Datura and Withania).
| No. | Component |
R
t
(min.) |
RI* | % Composition | Method of Identification | Molecular Formula |
||||
|---|---|---|---|---|---|---|---|---|---|---|
| Cal. | Rep. | Cap. | To. | Dat. | Wt. | |||||
| 1 | 1,2,4-trimethyl-Cyclopentane | 3.083 | 763 | 777 | - | - | - | 1.40 | RI/MS | C8H16 |
| 2 | (1α,2α,3β)−1,2,3-trimethyl- Cyclopentane | 3.181 | 767 | - | - | - | - | 1.08 | RI/MS | C8H16 |
| 3 | 4-methyl-Heptane | 3.386 | 775 | 770 | - | - | - | 0.91 | RI/MS | C8H18 |
| 4 | 2-methyl-Heptane | 3.478 | 778 | 778 | - | - | - | 5.65 | RI/MS | C8H18 |
| 5 | 3-methyl-Heptane | 3.605 | 783 | 783 | - | - | - | 2.44 | RI/MS | C8H16 |
| 6 | cis−1,3-dimethyl-Cyclohexane | 3.646 | 785 | 778 | - | - | - | 6.55 | RI/MS | C8H16 |
| 7 | 1,4-dimethyl-Cyclohexane | 3.675 | 786 | 782 | - | - | - | 2.68 | RI/MS | C8H16 |
| 8 | 3-Hexanol | 3.740 | 788 | 784 | - | - | - | 0.49 | RI/MS | C6H14O |
| 9 | 1,1-dimethyl-Cyclohexane | 3.770 | 789 | 783 | - | - | - | 0.51 | RI/MS | C8H16 |
| 10 | 4-methyl-2-Pentanol | 3.822 | 791 | 790 | - | - | - | 0.80 | RI/MS | C6H14O |
| 11 | cis−1-ethyl-2-methyl-Cyclopentane | 3.891 | 794 | 790 | - | - | - | 0.61 | RI/MS | C8H16 |
| 12 | trans−1,3-dimethyl-Cyclohexane | 3.993 | 798 | 798 | - | - | - | 1.30 | RI/MS | C8H16 |
| 13 | Octane | 4.107 | 802 | 800 | - | - | - | 16.91 | RI/MS | C8H16 |
| 14 | hexyl-Cyclopentane | 4.270 | 809 | - | - | - | - | 0.04 | RI/MS | C11H22 |
| 15 | cis−1,2-dimethyl-Cyclohexane | 4.611 | 822 | 826 | - | - | - | 0.54 | RI/MS | C8H16 |
| 16 | ethyl-Cyclohexane | 4.729 | 826 | 827 | - | - | - | 1.60 | RI/MS | C8H16 |
| 17 | Cyclogeraniolane | 4.855 | 831 | 839 | - | - | - | 0.33 | RI/MS | C9H18 |
| 18 | 2,5-dimethyl-Heptane | 4.907 | 833 | 833 | - | - | - | 0.29 | RI/MS | C9H20 |
| 19 | Ethylbenzene | 5.155 | 843 | 843 | - | - | - | 0.54 | RI/MS | C8H10 |
| 20 | 1,3,5-trimethyl-Cyclohexane | 5.216 | 845 | - | - | - | - | 0.20 | RI/MS | C9H18 |
| 21 | octahydro-Pentalene | 5.482 | 855 | 861 | - | - | - | 0.14 | RI/MS | C8H14 |
| 22 | 3-methyl-Octane | 5.817 | 868 | 852 | - | - | - | 0.28 | RI/MS | C9H20 |
| 23 | 1-Ethyl-4-methylcyclohexane | 6.129 | 881 | 883 | - | - | - | 0.19 | RI/MS | C9H18 |
| 24 | Cyclohexane propanol | 6.346 | 919 | - | 1.22 | - | - | - | RI/MS | C9H18O |
| 25 | 2,2,3,3-tetramethyl-Pentane | 6.515 | 925 | - | 1.00 | - | - | - | RI/MS | C9H20 |
| 26 | Nonane | 6.596 | 898 | 900 | - | - | - | 0.59 | RI/MS | C13H28 |
| 27 | propyl-Cyclohexane | 6.647 | 929 | 926 | 2.47 | - | - | - | RI/MS | C9H18 |
| 28 | (E)−6-methyl-3-Undecene | 6.981 | 940 | - | 1.11 | - | - | - | RI/MS | C12H24 |
| 29 | (R)-(-)-(Z)−14-Methyl-8-hexadecen-1-ol | 7.119 | 944 | - | 0.29 | - | - | - | RI/MS | C17H34O |
| 30 | trans−2-ethyl-1,1’-bi-cyclohexyl | 7.245 | 948 | - | 0.18 | - | - | - | RI/MS | C14H26 |
| 31 | 1,1,2,3-tetramethyl-Cyclohexane | 7.391 | 953 | - | 2.66 | - | - | - | RI/MS | C10H20 |
| 32 | 1R-α-Pinene | 7.415 | 925 | 929 | - | - | - | 0.03 | RI/MS | C10H16 |
| 33 | Mesitylene | 7.848 | 967 | 962 | 1.87 | - | - | - | RI/MS | C9H12 |
| 34 | 3-methyl-Nonane | 7.899 | 969 | 962 | 4.63 | - | - | - | RI/MS | C10H22 |
| 35 | 4-phenyl-Valeric acid | 8.190 | 978 | - | 0.43 | - | - | - | RI/MS | C11H14O2 |
| 36 | trans−1-methyl-4-(1-methylethyl)-Cyclohexane | 8.245 | 980 | 976 | 1.12 | - | - | - | RI/MS | C10H20 |
| 37 | 1-methyl-3-propyl-Cyclohexane | 8.325 | 983 | - | 1.24 | - | - | - | RI/MS | C10H20 |
| 38 | Hemimellitene | 8.617 | 992 | 999 | 3.33 | - | - | - | RI/MS | C9H12 |
| 39 | di-Hydrocapsaicin | 8.806 | 998 | - | 14.31 | - | - | - | RI/MS | C18H29NO3 |
| 40 | β-Myrcene | 9.111 | 979 | 975 | - | - | - | 0.10 | RI/MS | C10H16 |
| 41 | Hydratropic acid, oct-3-en-2-yl ester | 9.140 | 1009 | - | 0.24 | - | - | - | RI/MS | C17H24O2 |
| 42 | 5-ethyl-2-methyl-Heptane | 9.512 | 1021 | - | 3.26 | - | - | - | RI/MS | C10H22 |
| 43 | butyl-Cyclohexane | 9.771 | 1029 | 1026 | 1.03 | - | - | - | RI/MS | C10H20 |
| 44 | 3,7-dimethyl-Nonane | 10.016 | 1037 | 1042 | 0.45 | - | - | - | RI/MS | C11H24 |
| 45 | β-Phellandrene | 10.178 | 1013 | 1013 | - | - | - | 0.33 | RI/MS | C10H16 |
| 46 | D-Limonene | 10.241 | 1015 | 1018 | - | - | - | 0.77 | RI/MS | C10H16 |
| 47 | (Z)-Dec-4-en-1-yl propyl carbonate | 10.470 | 1051 | - | 1.70 | - | - | - | RI/MS | C14H26O3 |
| 48 | 2,5-dimethyl-Nonane | 10.611 | 1056 | 1059 | 1.52 | - | - | - | RI/MS | C11H24 |
| 49 | 1-ethyl-3,5-dimethyl-Benzene | 10.660 | 1058 | 1058 | 0.59 | - | - | - | RI/MS | C10H14 |
| 50 | 4-methyl-Decane | 10.712 | 1059 | 1051 | 0.93 | - | - | - | RI/MS | C11H24 |
| 51 | 2-methyl-Decane | 10.821 | 1063 | 1053 | 1.87 | - | - | - | RI/MS | C11H24 |
| 52 | 3-methyl-Decane | 11.025 | 1069 | 1069 | 0.85 | - | - | - | RI/MS | C11H24 |
| 53 | 4-ethyl-1,2-dimethyl-Benzene | 11.250 | 1076 | 1075 | 0.60 | - | - | - | RI/MS | C10H14 |
| 54 | 1-isopropyl-1-methyl-Cyclohexane | 11.423 | 1082 | - | 0.80 | - | - | - | RI/MS | C10H20 |
| 55 | p-Cymene | 11.521 | 1085 | - | 0.91 | - | - | 0.09 | RI/MS | C10H14 |
| 56 | 4,6-dimethyl-Dodecane | 11.568 | 1057 | - | - | - | - | 0.11 | RI/MS | C14H30 |
| 57 | Capsaicin | 11.950 | 1099 | - | 15.46 | - | - | - | RI/MS | C18H27NO3 |
| 58 | 1,3-diethyl-5-methyl-Benzene | 12.091 | 1103 | - | 0.66 | - | - | - | RI/MS | C11H16 |
| 59 | trans−2-methyl-Decalin | 12.217 | 1124 | 1138 | 0.94 | - | - | - | RI/MS | C11H20 |
| 60 | (1α,2β,4α.)−1,4-dimethyl-2-(2-methylpropyl)-, Cyclohexane | 12.342 | 1081 | - | - | - | - | 0.50 | RI/MS | C12H24 |
| 61 | trans-Verbenyl isovalerate | 12.468 | 1116 | - | 1.02 | - | - | - | RI/MS | C15H24O2 |
| 62 | 1,2,3,4-tetramethyl-Benzene | 12.590 | 1119 | - | 0.38 | - | - | - | RI/MS | C10H14 |
| 63 | 3,7-dimethyl-Decane | 12.794 | 1126 | 1127 | 0.44 | - | - | - | RI/MS | C12H26 |
| 64 | trans−1-ethyl-1,3-dimethyl-Cyclohexane | 12.802 | 1095 | - | - | - | - | 0.18 | RI/MS | C10H20 |
| 65 | 1,3-dimethyl-Adamantane | 12.938 | 1099 | - | - | - | - | 15.04 | RI/MS | C12H20 |
| 66 | pentyl-Cyclohexane | 13.002 | 1133 | 1134 | 0.86 | - | - | - | RI/MS | C11H22 |
| 67 | 1-methyl-3-propyl-Cyclooctane | 13.255 | 1109 | - | - | - | - | 0.09 | RI/MS | C12H24 |
| 68 | 1,3,5-trimethyl-Adamantane | 13.355 | 1113 | - | - | - | - | 0.38 | RI/MS | C13H22 |
| 69 | 1,1’-bi-Cyclooctyl | 13.465 | 1116 | - | - | - | - | 0.09 | RI/MS | C16H30 |
| 70 | 2,4-diethyl-1-methyl-Cyclohexane | 13.521 | 1118 | - | - | - | - | 0.14 | RI/MS | C11H22 |
| 71 | 1,2,3,5-tetramethyl-Benzene | 13.600 | 1152 | 1151 | 0.30 | - | - | - | RI/MS | C10H14 |
| 72 | Sulfurous acid, decyl 2-ethylhexyl ester | 13.678 | 1154 | - | 0.83 | - | - | - | RI/MS | C18H38O3S |
| 73 | 10-Methyl-Z−11-tridecen-1-ol acetate | 13.720 | 1124 | - | - | - | - | 0.20 | RI/MS | C16H30O2 |
| 74 | 5-(1-methylpropyl)-Nonane | 13.801 | 1158 | - | 0.36 | - | - | - | RI/MS | C13H28 |
| 75 | Hexadecane | 13.933 | 1163 | - | 1.73 | - | - | - | RI/MS | C16H34 |
| 76 | 1,1-bis-(dodecyloxy)-Hexadecane | 13.956 | 1132 | - | - | - | 0.30 | RI/MS | - | |
| 77 | (1α,2α,4α,5α)−1,2,4,5-tetraethyl-Cyclohexane | 14.090 | 1136 | - | - | - | - | 0.08 | RI/MS | C14H28 |
| 78 | 3-methyl-Undecane | 14.138 | 1169 | 1169 | 0.68 | - | - | - | RI/MS | C12H26 |
| 79 | 1-methyl-4-(1-methylbutyl)-Cyclohexane | 14.233 | 1141 | - | - | - | - | 0.21 | RI/MS | C12H24 |
| 80 | cis,cis,cis−1-Isobutyl-2,5-dimethylcyclohexane | 14.361 | 1145 | 1137 | - | - | - | 0.19 | RI/MS | C12H24 |
| 81 | decahydro−2,6-dimethyl-Naphthalene | 14.648 | 1154 | - | - | - | - | 5.01 | RI/MS | C12H22 |
| 82 | decahydro−2,3-dimethyl-Naphthalene | 15.000 | 1165 | - | - | - | - | 0.72 | RI/MS | C12H22 |
| 83 | 1-ethyl-Cyclohexene | 15.038 | 1167 | - | - | - | - | 0.44 | RI/MS | C8H14 |
| 84 | Dodecane | 15.039 | 1198 | - | 8.27 | - | - | - | RI/MS | C14H30 |
| 85 | 6-methyl-Tridecane | 15.454 | 1212 | - | 1.04 | - | - | - | RI/MS | C14H30 |
| 86 | decahydro−1,5-dimethyl-Naphthalene | 15.546 | 1183 | - | - | - | - | 1.10 | RI/MS | C12H22 |
| 87 | 1-(2-methyl-2-cyclopenten-1-yl)-Cyclohexene | 15.883 | 1194 | - | - | - | - | 1.04 | RI/MS | C12H18 |
| 88 | Tritetracontane | 16.931 | 1264 | - | 4.18 | - | - | 0.20 | RI/MS | - |
| 89 | Tridecane | 17.986 | 1301 | 1300 | 0.78 | - | - | - | RI/MS | C14H30 |
| 90 | Acetic acid, [4-(1-hydroxy-1-methylethyl)cyclohex-1-enyl]methyl ester | 18.226 | 1309 | - | - | - | 1.49 | - | RI/MS | C12H20O3 |
| 91 | (S)−3-(1-methyl-2-pyrrolidinyl)-Pyridine | 19.411 | 1351 | 1341 | - | 85.96 | 4.00 | - | RI/MS | C10H14N2 |
| 92 | (1 S,3R,5 S,6R)-(-)−5-Caranol | 21.628 | 1432 | - | - | - | 1.04 | - | RI/MS | C10H18O |
| 93 | Sulfurous acid, hexyl octyl ester | 23.259 | 1496 | - | 0.29 | - | - | - | RI/MS | C14H30O3S |
| 94 | trans-p-Menth-8-ene-1,2-diol | 23.485 | 1505 | - | - | - | 2.22 | - | RI/MS | C10H18O2 |
| 95 | 2,4-bis-(1,1-dimethylethyl)-Phenol | 23.810 | 1518 | - | 0.35 | - | - | - | RI/MS | C14H22O |
| 96 | Heneicosane | 24.284 | 1495 | - | - | - | - | 1.13 | RI/MS | C21H44 |
| 97 | Tetradecanoic acid | 29.699 | 1766 | 1769 | - | - | 1.95 | - | RI/MS | C14H28O2 |
| 98 | Hexadecanoic acid, methyl ester | 33.120 | 1927 | 1927 | - | 1.21 | 4.11 | - | RI/MS | C17H34O2 |
| 99 | Eicosanoic acid | 33.888 | 1965 | - | 2.21 | - | - | - | RI/MS | C20H40O2 |
| 100 | n-Hexadecanoic acid | 33.924 | 1966 | 1968 | - | 6.77 | 53.81 | - | RI/MS | C16H32O2 |
| 101 | 9,12-Octadecadienoic acid, methyl ester | 36.463 | 2097 | 2094 | - | 0.37 | - | - | RI/MS | C19H34O2 |
| 102 | (E)−9-Octadecenoic acid, methyl ester | 36.568 | 2103 | 2085 | - | - | 3.26 | - | RI/MS | C19H36O2 |
| 103 | Cyclopropaneoctanoic acid, 2-[[2-[(2-ethylcyclopropyl)methyl]cyclopropyl]methyl]-, methyl ester | 36.585 | 2104 | - | - | 0.62 | - | - | RI/MS | C22H38O2 |
| 104 | Methyl stearate | 37.051 | 2128 | 2128 | - | 0.19 | 1.50 | - | RI/MS | C19H38O2 |
| 105 | Oleic acid | 37.317 | 2142 | 2141 | 0.63 | 1.91 | 20.29 | - | RI/MS | C18H34O2 |
| 106 | 9-Hexadecenoic acid | 37.428 | 2148 | - | - | 1.09 | - | - | RI/MS | C16H30O2 |
| 107 | Octadecanoic acid (stearic acid) | 37.751 | 2165 | 2167 | - | 0.82 | 4.25 | - | RI/MS | C18H36O2 |
| 108 | 4-methylene-1-methyl-2-(2-methyl-1-propen-1-yl)−1-vinyl-Cycloheptane | 37.965 | 2177 | - | - | 0.26 | - | - | RI/MS | C15H24 |
| 109 | Scopolamine | 41.502 | 2378 | - | - | - | 0.44 | - | RI/MS | C17H21NO4 |
| 110 | Vitamin E | 52.796 | 3149 | 3149 | 0.54 | - | - | - | RI/MS | C29H50O2 |
|
% Identification No. of compounds |
92.56 (48) |
99.20 (10) |
98.36 (12) |
74.54 (49) |
||||||
Rt: retention time, RI: retention index, Dat.: Datura stramonium, Cap.: Capsicum annuum, To.: Nicotiana tabacum, Wt.: Withania somnifera. The percentage values reported in each plant column represent independent GC–MS analyses of the corresponding extract. A dash (–) indicates that the compound was not detected in that particular extract. * (RI): Retention Index.