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. 2022 Nov 26;16:100524. doi: 10.1016/j.fochx.2022.100524

Table 2.

Gas chromatography–mass spectrometry result for the chemical compositions of essential oil from fresh leaves of Oyama sieboldii.

No.a Compounds RIb ID Molecular formula RAe(%)
SOSFMRDf SOSFMD SFMD MHD HD
1 3-Furfural 831 RIc, MSd C5H4O2 0.85 ndg nd nd nd
2 Acetylfuran 904 RI, MS C6H6O2 0.50 nd nd nd nd
3 5-MethyIfurfural 970 RI, MS C6H6O2 2.85 nd nd nd nd
4 β-Phellandrene 1007 RI, MS C10H16 1.81 5.13 3.41 1.55 0.72
5 α-Terpinene 1016 RI, MS C10H16 0.52 nd nd nd nd
6 β-Cymene 1022 RI, MS C10H14 0.31 nd nd nd nd
7 Limonene 1030 RI, MS C10H16 0.57 0.86 0.55 0.25 nd
8 3,6,6-trimethyl-Bicyclo[3.1.1]hept-2-ene MS C10H16 3.92 5.34 3.84 1.69 0.97
9 Cyclofenchene 1037 RI, MS C10H16 0.42 0.62 0.35 nd nd
10 γ-Terpinene 1056 RI, MS C10H16 0.71 nd nd nd nd
11 4-Terpinenol 1180 RI, MS C10H18O 0.83 0.29 nd 0.22 nd
12 Geraniol 1254 RI, MS C10H18O nd nd 0.39 0.43 nd
13 Eugenol 1359 RI, MS C10H12O2 1.24 nd nd nd nd
14 E)-3,7-Dimethylocta-2,6-dienyl ethyl carbonate MS C13H22O3 nd 0.90 nd 0.84 0.36
15 Guaia-10(14),11-diene MS C15H24 nd 0.30 nd nd 0.39
16 β-Elemene 1380 RI, MS C15H24 1.87 3.56 3.26 2.87 8.48
17 Caryophyllene 1415 RI, MS C15H24 0.78 1.65 1.51 1.00 1.79
18 α-Guaiene 1426 RI, MS C15H24 nd 0.58 0.33 0.22 0.51
19 cis,cis,cis-1,1,4,8-Tetramethyl-4,7,10-cycloundecatriene MS C15H24 0.98 2.18 1.81 1.42 2.01
20 β-Copaene 1430 RI, MS C15H24 1.87 6.61 6.11 6.50 6.35
21 Humulene 1434 RI, MS C15H24 1.48 0.82 0.51 nd nd
22 cis-α-Bergamotene 1435 RI, MS C15H24 3.27 1.33 4.74 3.56 1.72
23 Bicylogermacrene 1467 RI, MS C15H24 0.50 2.57 1.28 1.22 0.41
24 Guaia-10(14),11-diene MS C15H24 nd 0.87 0.86 0.73 0.37
25 β-Selinene 1485 RI, MS C15H24 3.45 9.45 10.92 9.71 8.78
26 1,1,4,5,6-Pentamethyl-2,3-dihydro-1H-indene 1522.6 RI, MS C14H20 0.85 nd nd nd nd
27 γ-Cadinene 1524 RI, MS C15H24 nd 0.33 0.35 nd 0.24
28 δ-Cadinene 1530 RI, MS C15H24 2.14 2.03 2.58 2.78 3.39
29 α-Nerolidol 1551 RI, MS C15H26O 0.38 0.45 1.37 2.04 0.61
30 Germacren D-4-ol 1569 RI, MS C15H26O 0.69 3.71 4.77 8.48 4.60
31 τ-Cadinol 1639 RI, MS C15H26O 1.00 1.51 1.96 3.63 2.78
32 τ-Muurolol 1645 RI, MS C15H26O 3.59 2.84 2.49 4.36 3.89
33 Eremophilone 1756.4 RI, MS C15H22O 2.48 3.82 3.80 5.18 4.47
34 Thujopsenal MS C15H22O 0.31 0.38 0.50 0.85 0.63
35 Longifolenaldehyde MS C15H24O 0.82 3.11 1.90 4.02 6.19
36 Neophytadiene 1806 RI, MS C20H38 2.38 0.91 0.67 1.77 2.42
37 Dehydrosaussurea lactone 1838.4 RI, MS C15H20O2 1.44 1.18 0.80 nd 0.69
38 Dihydrodehydrocostus lactone 1953.9 RI, MS C15H20O2 2.42 0.52 nd 0.22 0.29
39 Eremanthin MS C15H18O2 6.71 0.36 nd nd nd
40 Eudesma-5,11(13)-dien-8,12-olide MS C15H20O2 2.22 nd nd nd nd
41 Dehydrocostuslactone 2006.7 RI, MS C15H18O2 30.23 25.93 32.85 21.13 23.35
42 Phytol 2105 RI, MS C20H40O 0.82 1.17 2.23 5.39 3.81
Total identified compounds 87.21 91.31 96.14 92.06 90.23
Total terpene hydrocarbons 26.67 45.14 43.07 35.28 38.55
Total oxygenated terpenes 54.80 46.17 53.07 56.78 51.68
Non-terpene aliphatics 3.36 0.00 0.00 0.00 0.00
Total aromatics 2.39 0.00 0.00 0.00 0.00
a

Compounds listed in order of elution from HP-5MS capillary column.

b

Retention indices relative to C11–C21 n-alkanes on HP-5MS capillary column.

c

Tentative identification by comparison with RI on HP-5MS capillary column with literature data.

d

Confirmed by comparison with mass data obtained from NIST02 mass spectra library.

e

Relative area percentage (peak area relative to the total peak area, %).

f

SOSFMRD: salting-out solvent-free microwave rotary distillation; SOSFMD: salting-out solvent-free microwave distillation; SFMD: solvent-free microwave distillation; MHD: microwave hydrodistillation; HD: hydrodistillation.

g

Not detected.