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Table 2 Chemical composition of the essential oils of T. minuta flower

From: Chemical constituents, antibacterial and antioxidant properties of the essential oil flower of Tagetes minuta grown in Cala community Eastern Cape, South Africa

S/N Chemical constituents Chemical formula RT (min) % Composition
1 Butanoic acid, 2-methyl-, ethyl ester C7H14O2 3.26 0.06
2 2-Hexenal, (E)- C6H10O 3.30 0.09
3 1-Hexanol C6H14O 3.37 0.09
4 Heptanal C7H14O 3.643 0.05
5 2-Cyclopenten-1-one, 3,4-dimethyl- C7H10O 3.752 0.07
6 1H–Imidazole, 2-ethyl-4-methyl- C6H10N2 3.832 1.29
7 Phenol, 3,4-dimethyl- C7H10O 3.923 0.07
8 (1S)-2,6,6-Trimethylbicyclo [3.1.1] hept-2-ene C10H16 3.979 0.17
9 Nona-3,5-dien-2-one C9H14O 4.022 0.07
10 Camphene C10H16 4.16 0.13
11 1-Octene C8H16 4.158 0.08
12 Bicyclo [3.1.0] hexane, 4-methylene- 1-(1-methylethyl)- C10H16 4.286 0.39
13 Furan, 2-pentyl- C9H14O 4.374 0.41
14 Octanal C8H16O 4.457 0.36
15 α –Phellandrene C10H16 4.537 0.23
16 2,4-Heptanedione, 6-methyl- C8H14O2 4.648 0.14
17 β-Ocimene C10H16 4.751 14.40
18 1,3,7-Octatriene, 3,7-dimethyl- C10H16 4.843 0.57
19 Valeric acid, 3-tridecyl ester C18H36O2 4.903 9.24
20 ɤ-Terpinene C10H16 4.982 0.41
21 3,4-Dimethylbenzyl alcohol C9H12O 5.039 0.07
22 Furan, 2,3-dihydro-3-methyl- C5H8O 5.066 0.15
23 p-Cymen-7-ol C10H14O 5.224 1.03
24 6-Methyl-3,5-heptadiene-2-one C8H12O 5.299 0.26
25 Furazan, 3-(dimethylaminomethylenamino)-4-(1,2,4-triazol-3-yl)- C7H9N7O 5.370 0.24
26 2,6-Dimethyl-1,3,5,7-octatetraene, E,E- C10H14 5.435 0.07
27 2,4,6-Octatriene, 2,6-dimethyl-,E,Z)- C10H16 5.484 1.88
28 5,7-Octadien-4-one, 2,6-dimethyl-, (Z)- C10H16O 5.617 1.50
29 5,7-Octadien-4-one, 2,6-dimethyl-, (E)- C10H16O 5.698 7.14
30 Sorbic acid vinyl ester C8H10O2 5.763 0.34
31 Butanoic acid, 3-hexenyl ester, (E)- C8H18O2 5.923 2.21
32 Bicyclo [2.2.1] heptane, 7,7-dimethy l-2-methylene- C10H16 6.028 0.62
33 Decanal C10H20O 6.066 0.64
34 Cyclopentanone, 2-cyclopentylidene C10H14O 6.121 0.43
35 2-Cyclohexen-1-ol, 2-methyl-5-(1-m ethylethenyl)-, cis C10H16O 6.246 0.22
36 Phenol, m-tert-butyl- C10H14O 6.318 9.41
37 Naphthalene, 1,2,3,4,4a,5,6,7-octa hydro-4a-methyl- C11H18 6.380 5.58
38 Phenol, 2,3,5,6-tetramethyl- C10H14O 6.494 0.60
39 4-Methyl-1,3-heptadiene C10H14O 6.573 0.26
40 Orcinol C7H8O2 6.626 0.45
41 1H–Pyrazole, 4,5-dihydro-5,5-dimethyl-4-isopropylidene- C8H14N2 6.659 0.76
42 Bornyl acetate C12H20O 6.750 0.29
43 Propanoic acid, 2-methyl-, octyl ester C12H14O2 7.032 0.06
44 1,5,5-Trimethyl-6-methylene-cyclohexene C10H16 7.128 0.15
45 2,6,10,14-Hexadecatetraen-1-ol, 3, 7,11,15-tetramethyl-, acetate, (E, E,E)- C20H34O 7.311 0.06
46 2-Isopropylidene-3-methylhexa-3,5-dienal C10H14 7.428 0.18
47 1-Benzothiepin, 2,3,4,5-tetrahydro C9H10O2S 7.503 1.23
48 Nonyl 2-methylbutanoate C14H28O2 7.640 0.25
49 Caryophyllene C15H24 7.756 1.86
50 Humulene C15H24 7.977 0.73
51 Naphthalene, 1,2,3,5,6,7,8,8a–octa hydro-1,8a–dimethyl-7-(1-methylethenyl)-, [1R-(1α,7β,8aα)]- C15H24 8.073 0.25
52 Aromandendrene C15H24 8.092 0.32
53 1,6-Cyclodecadiene, 1-methyl-5-methylene-8-(1-methylethyl)-, [S-(E,E)]- C15H26 8.142 0.51
54 Bicyclogermacrene C15H24 8.239 1.19
55 ɤ -Muurolene C15H24 8.327 0.17
56 Naphthalene, 1,2,3,5,6,8a–hexahydro-4,7-dimethyl-1-(1-methylethyl)-, (1S–cis)- C15H24 8.351 0.15
57 2,2,6-Trimethyl-1-(3-methylbuta-1, 3-dienyl)-7-oxabicyclo [4.1.0] heptan-3-ol C14H22 8.423 0.60
58 1,6,10-Dodecatrien-3-ol, 3,7,11-trimethyl-, [S-(Z)]- C15H24 O 8.516 0.17
59 Culmorin C15H24 O2 8.566 0.02
60 Tricyclo[2.2.1.0 (2,6)] heptane, 1,7-dimethyl-7-(4-methyl-3-pentenyl)-, (−)- C15H24 8.698 0.19
61 (−)-Spathulenol C15H24 O 8.767 4.56
62 Caryophyllene oxide C15H24 O 8.813 1.01
63 1H–Cycloprop[e]azulen-4-ol, decahydro-1,1,4,7-tetramethyl-, [1aR-(1aα, 4β, 4aβ,7α, 7aβ, 7bα]- C15H26 O 8.865 0.25
64 Levomenol C15H26 O 8.914 0.30
65 3-Cyclohexen-1-carboxaldehyde, 3,4-dimethyl- C9H14 O 8.965 0.22
66 Tricyclo [4.4.0.0(2,7)] dec-3-ene-3-methanol, 1-methyl-8-(1-methylethyl)- C15H24 O 9.092 1.06
67 Longipinocarveol, trans- C15H24 O 9.293 0.33
68 Octadecanal C18H36 O 9.358 0.11
69 7-Tetracyclo [6.2.1.0(3.8)0(3.9)] undecanol, 4,4,11,11- tetramethyl C15H24O 9.379 0.11
70 Phenol, 2-methyl-4-(1,1,3,3-tetramethylbutyl)- C15H24 O 9.501 0.12
71 Carbonic acid, 4-isopropylphenyl propargyl ester C17H14 O4 9.551 0.06
72 11-Isopropylidenetricyclo[4.3.1.1(2,5)]undec-3-en-10-one C14H18 9.599 0.08
73 Shyobunone C15H24 O 9.647 0.03
74 2-Acetyl-6-methoxynaphthalene C13H12 O2 9.828 0.14
75 Cholesterol C27H46 O 9.879 0.04
76 Bicyclo[3.1.1]heptane, 2,6,6-trimethyl-,(1α,2β,5α) C10H18 10.020 0.63
77 2-Pentadecanone, 6,10,14-trimethyl C18H36 O 10.060 0.53
78 Caryophyllene oxide C15H24O 10.124 0.15
79 1-Hexadecanol C16H34O 10.230 0.22
80 2,6-Diisopropylnaphthalene C16H20 10.300 0.18
81 2-Cyclohexen-1-one, 4-(3-hydroxybutyl)-3,5,5-trimethyl- C13H22 O2 10.468 0.09
82 6Z-2,5,5,10-Tetramethyl-undeca-2,6,9-trien-8-one C15H24 O 10.502 0.09
83 Ar-tumerone C15H20 O 10.610 0.50
84 3-(4,8,12-Trimethyltridecyl) furan C20H36O 10.706 0.49
85 3,3-Dimethylbutan-2-yl (E)-2-methylbut-2-enoate C11H20O2 10.920 0.24
86 1-Isopropenyl-3,3-dimethyl-5-(3-methyl-1-oxo-2-butenyl) Cyclopentane C15H24O 10.970 1.43
87 3-Methyl-2-butenoic acid, 2-methyloct-5-yn-4-yl ester C14H22O2 11.022 0.19
88 Fumaric acid, heptadecyl 2,2,2-trifluoroethyl ester C8H6F6O4 11.117 0.40
89 Methyl 3-(1-formyl-3,4-methylenedioxy)benzoate C16H12O5 11.305 0.42
90 (E)-2-Isopropyl-5-methylphenyl 2-methylbut-2-enoate Ni 11.523 0.52
91 3-Methyl-2-butenoic acid, 2-methyl C14H22O2 11.668 0.28
92 Cyclohexane, (2-nitro-2-propenyl)- C9H15NO2 11.928 2.28
93 Hexane, 1,6-dibromo- C6H12Br2 11.942 0.33
94 2,2':5',2"-Terthiophene C14H8S3 12.089 0.25
95 Eicosane C20H42 12.175 0.18
96 Benzo[b]naphtho[2,3-d]thiophene,8-dimethyl- C18H14 12.591 0.90
97 2,4-Cyclohexadien-1-one, 3,5-bis(1,1-dimethylethyl)-4-hydroxy- C14H22O2 12.992 0.02
98 Octasiloxane,1,1,3,3,5,5,7,7,9,9,11,11,13,13,15,15-hexadecamethyl- C16H48O7Si8 13.141 0.16
  Total content of EO (%)    89.16
  Yield of EO (%)    0.33
  1. RT Retention time, Ni not identified, EO essential oil