Table 2 Compounds of Brassica rapa var. chinensis detected by GC–MS under various light treatments
Name of compound | Retention time (± 0.05 min)a | Molecular formula | Compound nature | Similarity index (SI) | CASb | Present in respective treatment |
|---|---|---|---|---|---|---|
Dodecane | 10.671 | C12H26 | Alkane | 92 | 13187-99-0 | Natural light |
2,6,10-Trimethyltridecane | 16.119 | C16H34 | Alkane | 92 | 3891-99-4 | Natural light |
Hexadecane, 1-iodo | 16.232 | C16H33I | Iodine-containing compounds | 93 | 544-77-4 | Natural light; blue; magenta; red |
2,4-Di-tert-butylphenol | 16.658 | C14H22O | Phenol | 95 | 96-76-4 | All treatments except natural light |
Nonadecane | 19.060 | C19H40 | Alkane | 93 | 629-92-5 | Natural light; magenta |
Eicosane | 21.377 | C20H42 | Alkane | 92 | 112-95-8 | All treatments |
Tetracosane | 22.379 | C24H50 | Alkane | 91 | 0-0-0 | Blue |
Cyclononasiloxane, octadecamethyl- | 23.284 | C18H54O9Si9 | Alkane | 89 | 556-71-8 | 75 µmol m−2 s−1, 12:12; 75 µmol m−2 s−1, 6:6:6:6; magenta |
Neophytadiene | 24.438 | C20H38 | Terpenes | 96 | 504-96-1 | All treatments |
3,7,11,15-Tetramethyl-2-hexadecene | 24.575 | C20H40 | Alkene | 93 | 2437-93-6 | All treatments except natural light |
2-Hexadecen-1-ol,3,7,11,15-tetramethyl | 24.964 | C20H40O | Diterpene | 90 | 102608-53-7 | All treatments except red |
Triacontane, 1-iodo | 26.018 | C30H61 | Iodine-containing compounds | 88 | 0-0-0 | Natural light; 150 µmol m−2 s−1, 12:12; 75 µmol m−2 s−1, 6:6:6:6; blue; magenta; red |
Cyclodecasiloxane, eicosamethyl | 26.414 | C20H60O10Si10 | Alkane | 87 | 18772-36-6 | 75 µmol m−2 s−1, 6:6:6:6 |
7,10,13-Hexadecatrienoic acid (Z,Z,Z) | 26.490 | C16H26O2 | Fatty acid | 91 | 7561-64-0 | Natural light; 75 µmol m−2 s−1, 12:12; 150 µmol m−2 s−1, 6:6:6:6 |
l-(+)-Ascorbic acid 2,6-dihexadecanoate | 27.055 | C38H68O8 | Vitamin | 88 | 28474-90-0 | All treatments |
Phytol | 29.976 | C20H40O | Diterpene | 96 | 150-86-7 | All treatments except blue |
Hexacosane, 1-iodo | 30.223 | C26H53I | Iodine-containing compounds | 90 | 0-0-0 | Natural light; 75 µmol m−2 s−1, 6:6:6:6; 150 µmol m−2 s−1, 6:6:6:6; blue; magenta |
10 (E), 12(Z)-Conjugated linoleic acid | 30.375 | C18H32O2 | Fatty acid | 91 | 2420-56-6 | 75 µmol m−2 s−1, 12:12; 150 µmol m−2 s−1, 6:6:6:6 |
9,12,15-Octadecatrienoic acid, (Z,Z,Z)- | 30.520 | C18H30O2 | Fatty acid | 95 | 463-40-1 | All treatments |
Octadecanoic acid | 30.974 | C18H36O2 | Fatty acid | 92 | 57-11-4 | 75 µmol m−2 s−1, 12:12; 150 µmol m−2 s−1, 12:12; 75 µmol m−2 s−1, 6:6:6:6; 150 µmol m−2 s−1, 6:6:6:6 |
2-Methyltetracosane | 31.045 | C25H52 | Alkane | 80 | 1560-78-7 | All treatments except magenta |
Hexadecanoic acid, 2-hydroxy-1-(hydroxymethyl) ethyl ester | 37.079 | C19H38O4 | Fatty acid ester compound | 87 | 23470-0-0 | All treatment except natural light |
Gamma-Sitosterol | 37.160 | C29H50O | Sterols | 69 | 83-47-6 | Natural light; 150 µmol m−2 s−1, 6:6:6:6 |
1-Linoleoyl glycerol @ 9,12-Octadecadienoic acid (Z,Z)- | 39.847 | C18H32O2 | Fatty acid | 91 | 2277-28-3 | 75 µmol m−2 s−1, 12:12; 75 µmol m−2 s−1, 6:6:6:6; 150 µmol m−2 s−1, 6:6:6:6 |
9,12,15-Octadecatrienoic acid, methyl ester | 39.959 | C19H32O2 | Fatty acid ester compound | 87 | 301-0-8 | 75 µmol m−2 s−1, 12:12; 75 µmol m−2 s−1, 6:6:6:6; blue |
Methyl (Z)-5,11,14,17-eicosatetraenoate | 39.982 | C21H34O2 | Fatty acid methyl ester | 77 | 59149-1-8 | 75 µmol m−2 s−1, 12:12; 150 µmol m−2 s−1, 12:12; 150 µmol m−2 s−1, 6:6:6:6; blue; magenta; red |
Octadecanoic acid, 2,3-dihydroxypropyl | 40.338 | C21H42O4 | Fatty acid | 90 | 123-94-4 | All treatments except natural light |
13-Docosenamide, (Z)- | 41.202 | C22H43NO | Fatty amide | 91 | 112-84-5 | All treatments except red |
Phenol,2,4-bis(1,1-dimethylethyl) phosphite | 42.776 | C42H63O3P | Phenol | 86 | 31570-4-4 | Natural light; magenta; red |
1-Heptacosanol | 43.267 | C27H56O | Fatty alcohol | 95 | 2004-39-9 | All treatments |
Vitamin E | 48.305 | C29H50O2 | Vitamin | 95 | 59-2-9 | All treatments |