Table 4.

Volatile compounds of Protaetia brevitarsis larvae

No	Compound name	Retention time	Relative peak area %
1	Butylated hydroxytoluene	4.913	0.28
2	Cyclododecene, 1-methyl-	7.221	0.25
3	Tetradecanoic acid	8.626	2.9
4	Tetradecanoic acid, ethyl ester	9.187	0.33
5	cis-11-Hexadecenal	9.405	0.34
6	Tetradecanal	9.596	0.33
7	Dodecanoic acid	9.741	2.39
8	Pentadecanoic acid	9.867	0.43
9	2,4-Diphenyl-4-methyl-2(E)-pentene	10.038	0.34
10	Pentadecanoic acid, ethyl ester	10.308	0.37
11	Undecanoic acid, 2,8-dimethyl-, methyl ester	10.454	0.23
12	4-t-Butyl-2-(.alpha.,.alpha.dimethylbenzyl)phenol	11.166	0.25
13	Hexadecanoic acid, methyl ester	11.542	0.37
14	9-Hexadecenoic acid	12.004	16.75
15	Hexadecenoic acid, Z-11-	12.083	0.26
16	n-Hexadecanoic acid	12.36	11.06
17	Hexadecanoic acid, ethyl ester	12.776	5.76
18	Octadecanal	13.237	0.68
19	Phenol, 2-(1,1-dimethylethyl)-4-(1-methyl-1-phenylethyl)-	13.495	0.59
20	10,18-Bisnorabieta-8,11,13-triene	13.745	0.37
21	Phenol, 2,6-bis(1,1-dimethylethyl)-4-(1-methyl-1-phenylethyl)-	14.332	1.63
22	Heptadecanoic acid, ethyl ester	14.504	0.4
23	8-Octadecenoic acid, methyl ester, (E)-	14.642	0.75
24	Unknown	14.893	0.35
25	6-Octadecenoic acid, (Z)-	15.434	14.88
26	Unknown	15.632	0.55
27	Linoleic acid ethyl ester	15.704	0.45
28	Ethyl oleate	15.823	9.16
29	Octadecanoic acid, ethyl ester	16.252	0.22
30	Heptadecane	16.324	0.44
31	Eicosane	17.98	1.44
32	Heneicosane	19.596	2.45
33	2,4-Diphenyl-4-methyl-1-pentene	20.968	0.2
34	Tricosane	21.146	2.68
35	Phenol, 2,4-bis(1-methyl-1-phenylethyl)-	21.285	2.05
36	2,4-Bis(dimethylbenzyl)-6-t-butylphenol	21.648	3.51
37	1,2-Benzenedicarboxylic acid, mono(2-ethylhexyl) ester	21.918	1.8
38	Hexacosane	22.65	2.67
39	Heptacosane	24.095	2.35
40	Tetracosane	25.493	1.96
41	Octadecane	26.846	1.88
42	Triacontane	28.158	1.22
43	Phenol, 2,4,6-tris(1-methyl-1-phenylethyl)-	28.462	0.34
44	Unknown	28.963	0.3
45	Unknown	29.306	0.23
46	Heptadecane, 8-methyl-	29.425	0.88
47	Tetratriacontane	30.658	0.61
48	Tetratetracontane	31.85	0.32