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Table 1 Volatile organic compounds composition emitted from champak flowers

From: Integrated metabolome and transcriptome analysis of Magnolia champaca identifies biosynthetic pathways for floral volatile organic compounds

No.a Compound RT (min)b RIc Formula ng.g−1 flower.h-1 d RA (%)
1 Ethyl propanoate 6.492 703 C5H10O2 1.96 ± 0.13 0.56
2 2-Methylbutanoate 6.593 713 C5H10O2 4.14 ± 0.40 1.19
3 Methyl 2-methylbutanoate 7.188 744 C6H12O2 80.69 ± 4.34 23.16
4 Ethyl butanoate 7.383 792 C6H12O2 1.93 ± 0.40 0.55
5 Ethyl 2-methylbutanoate 8.048 841 C7H14O2 32.66 ± 3.64 9.38
6 3-Methylbutanal oxime 8.189 851 C5H11NO 0.57 ± 0.01 0.16
7 Methyl tiglate 8.297 859 C6H10O2 0.43 ± 0.01 0.12
8 Methyl hexanoate 9.122 906 C7H14O2 5.17 ± 0.57 1.48
9 Propyl 2-methylbutanoate 9.477 937 C8H16O2 1.44 ± 0.02 0.41
10 β-Myrcene 10.261 982 C10H16 0.84 ± 0.01 0.24
11 Ethyl hexanoate 10.338 989 C8H16O2 2.16 ± 0.53 0.62
12 (Z)-β-Ocimene 11.045 1031 C10H16 7.71 ± 0.78 2.21
13 (E)-β-Ocimene 11.25 1043 C10H16 16.10 ± 1.42 4.62
14 (Z)-Furanoid linalool oxide 11.763 1063 C10H18O2 2.91 ± 0.1 0.84
15 (E)-Furanoid linalool oxide 12.047 1079 C10H18O2 27.07 ± 0.92 7.77
16 β-Linalool 12.168 1092 C10H18O 24.71 ± 1.54 7.09
17 Phenylethyl alcohol 12.497 1103 C8H10O 17.12 ± 1.83 4.91
18 Neo-allo-ocimene 12.656 1125 C10H16 1.91 ± 0.26 0.55
19 Benzyl nitrile 12.912 1140 C8H7N 0.68 ± 0.14 0.19
20 (E)-Pyranoid linalool oxide 13.461 1173 C10H18O2 6.34 ± 0.29 1.82
21 α-Terpineol 13.809 1185 C10H18O 0.61 ± 0.04 0.17
22 Geranyl methyl ether 14.225 1219 C11H20O 0.99 ± 0.03 0.28
23 Geranyl ethyl ether 1 15.225 1264 C12H22O 0.73 ± 0.02 0.21
24 Indole 15.519 1285 C8H7N 30.03 ± 2.81 8.62
25 δ-Elemene 16.194 1342 C15H24 11.13 ± 0.71 3.19
26 Methyl anthranilate 16.25 1346 C8H9NO2 0.54 ± 0.01 0.15
27 α-Copaene 16.382 1355 C15H24 0.41 ± 0.01 0.12
28 α-Ylangene 16.771 1380 C15H24 2.50 ± 0.23 0.72
29 β-Bourbonene 17.021 1396 C15H24 4.89 ± 0.30 1.40
30 Isogermacrene-D 17.518 1430 C15H24 7.99 ± 0.32 2.29
31 β-Copaene 17.67 1441 C15H24 5.38 ± 0.26 1.55
32 γ-Amorphene 17.898 1456 C15H24 1.72 ± 0.14 0.49
33 γ-Muurolene 18.048 1466 C15H24 2.28 ± 0.18 0.65
34 (Z)-Muurola-4(14),5-diene 18.172 1475 C15H24 1.73 ± 0.07 0.50
35 β-Cubebene 18.443 1478 C15H24 29.87 ± 3.42 8.57
36 δ-Guaiene 18.542 1500 C15H24 0.84 ± 0.05 0.24
37 α-Muurolene 18.622 1506 C15H24 1.48 ± 0.04 0.43
38 δ-Cadinene 18.717 1513 C15H24 1.3 ± 0.06 0.37
39 γ-Cadinene 18.862 1523 C15H24 0.99 ± 0.03 0.28
40 β-Cadinene 18.939 1529 C15H24 1.22 ± 0.02 0.35
41 Methyl palmitate 23.836 1908 C17H34O2 0.58 ± 0.06 0.17
42 Methyl linoleate 25.792 2080 C19H34O2 2.83 ± 0.30 0.81
43 Methyl linolenate 25.872 2087 C19H32O2 1.83 ± 0.17 0.52
  1. aCompounds are listed in the same order as their elution from HP-5MS column
  2. bRetention Time in minutes
  3. cRetention Indices calculated using C7-C30 n-alkanes on HP-5MS column
  4. dCalculated from three independent readings