Skip to main content
. 2014 Dec 3;23(2):253–259. doi: 10.1016/j.jfda.2014.10.006

Table 1.

Volatile extract composition of Dendranthema nankingense seeds.

No. Retention time on DB-WAX (min) Compounds RIs Identification and MS ions (EI)a Total area (%) Approximate concentration (μg/mL extract)b
DB-WAX HP-1
1 2.63 3-Methyl butanal 924 <700 ++++; M+ 86 (16.67), 44 4.5 B
2 3.10 2-Ethylfuran 962 <700 ++++; M+ 96 (32.46), 81 0.3 C
3 3.45 Pentanal 985 <700 ++++; M+ 86 (6.59), 44 1.7 C
4 4.06 α-Pinene 1021 921 ++++; M+ 136 (7.67), 93 0.2 D
5 4.78 2-Methylbutanoic acid ethyl ester 1059 841 ++++; M+ 130 (2.03), 57 0.2 D
6 4.91 Camphene 1065 942 +++; M+ 136 (15.98), 93 0.4 C
7 5.41 Hexanal 1086 779 ++++; M+ 100 (1.21), 44 19.8 A
8 5.59 2-Methyl-1-propanol 1093 <700 ++++; M+ 74 (15.32), 43 1.1 C
9 5.81 β-Pinene 1102 967 ++++; M+ 136 (8.83), 93 0.6 C
10 5.96 3-Pentanol 1110 <700 ++++; M+ 88 (0.65),59 0.4 C
11 6.19 Sabinene 1120 966 +++; M+ 136 (12.19), 93 1.9 C
12 6.27 2-Pentanol 1124 <700 ++++; M+ 88 (1.03), 45 1.0 C
13 6.61 2-Butylfuran 1139 880 +++; M+ 124 (13.46), 81 0.1 D
14 6.84 1-Butanol 1148 <700 ++++; M+ 74 (1.86), 56 0.1 D
15 7.25 2-Ethyl-hexanal 1165 937 +++; M+ 128 (2.17), 57 0.2 D
16 7.36 β-Myrcene 1169 984 +++; M+ 136 (5.24), 41 0.5 C
17 7.62 α-Terpinene 1178 1007 ++++; M+ 136 (42.98), 121 0.1 D
18 7.80 2-Heptanone 1185 872 ++++; M+ 114 (6.60), 43 0.3 C
19 8.11 D-limonene 1195 1032 ++++; M+ 136 (23.41), 68 1.4 C
20 8.22 3-Methyl-2-butenal 1199 759 +++; M+ 84 (100.00), 55 (77.16) 0.1 D
21 8.30 1,8-Cineole 1202 1020 ++++; M+ 154 (37.13), 43 1.0 C
22 8.45 3-Methyl-1-butanol 1208 721 ++++; M+ 88 (0.61), 55 5.2 B
23 8.71 (E)- 2-Hexenal 1219 829 +++; M+ 98 (22.10), 41 0.4 C
24 9.12 2-Pentyl-furan 1236 981 +++; M+ 138 (18.35), 81 3.4 B
25 9.38 (Z)-Ocimene 1246 1025 +++; M+ 136 (5.87), 93 0.2 D
26 9.59 1-Pentanol 1254 759 ++++; M+ 88 (1.16), 42 1.8 C
27 9.74 Styrene 1259 875 +++; M+ 104 (100.00), 103 (48.72) 0.5 C
28 10.06 β-Cymene 1271 998 +++; M+ 134 (26.37), 119 0.6 C
29 10.35 Terpinolen 1281 1078 +++; M+ 136 (62.05), 93 0.4 C
30 10.62 Octanal 1290 980 ++++; M+ 128 (1.20), 43 0.3 C
31 11.07 2-Ethenyl-2-butenal 1307 n.d. ++; M+ 96 (43.07), 67 0.1 D
32 11.50 (Z)-2-Heptenal 1324 932 ++++; M+ 112 (6.85), 41 0.8 C
33 11.66 2-Methyl-3-octanone 1331 1068 +++; M+ 142 (4.55), 43 0.1 D
34 11.92 6-Methyl-5-hepten-2-one 1341 n.d. +++; M+ 126 (11.16), 43 0.1 D
35 12.32 1-Hexanol 1356 862 ++++; M+ 102 (0.58), 56 3.4 B
36 13.12 (Z)- 3-Hexen-1-ol 1385 835 +++; M+ 100 (3.35), 67 0.1 D
37 13.38 Nonanal 1394 1083 ++++; M+ 142 (1.01), 57 0.3 C
38 13.42 3-Octanol 1395 988 +++; M+ 130 (2.38), 59 0.1 D
39 13.70 (E)-3-Octen-2-one 1406 1014 +++; M+ 126 (14.38), 43 0.2 D
40 13.96 Thujone 1417 1101 +++; M+ 152 (6.57), 110 0.2 D
41 14.08 2-Octanol 1422 995 +++; M+ 130 (0.63), 45 0.1 D

EI = electron impact; GC–MS = gas chromatography–mass spectrometry; RI = retention index.

a

The reliability of the proposed identification has been indicated according to the following: ++++, mass spectrum and retention indices both on polar and nonpolar columns agreed with those of the standards, mass spectral libraries and literature; +++, mass spectrum and retention indices both on polar and nonpolar columns agreed with mass spectral libraries and the literature; ++, mass spectrum and retention index on a polar column agreed with the values from the mass spectral libraries and the literature. MS ions (EI) were given by GC-MS on a DB-WAX column. They consisted of molecular ion M+ (relative abundance) and the base peak ion, or the peak ion with the second-highest relative abundance if the molecular ion was the base peak.

b

A: 500–1000; B: 100–500; C: 10–100; and D: 1–10.