Volatile Components’ Variation Analysis on Ginseng Stems and Leaves at Different Growth Ages by HS-SPME-GC-MS

Table 1

Identification of common differential compounds of GSLs with the cultivation years 3–7.

No.	t (min)	Formula	RIx	RI	Identification	Fold change
						GSL4 vs. 3	Trends	GSL5 vs. 3	Trends	GSL6 vs. 3	Trends	GSL7 vs. 3	Trends
1	4.48	C6H10O	832.14	832	2-Hexenal	−0.4173	↓	−0.7684	↓	−0.2313	↓	0.66097	↑
2	4.52	C8H14O3	834.52	833	2-Hexenal, (E)-	−0.5939	↓	−0.4313	↓	1.1642	↑	−5.7134	↓
3	4.76	C6H12O	848.81	845	3-Hexen-1-ol	−0.3425	↓	−0.2809	↓	1.28703	↑	0.27624	↑
4	7.28	C8H16O	994.86	995	Octanal	0.23339	↑	0.79992	↑	2.08758	↑	−3.4447	↓
5	9.15	C9H18O	1106.41	1107	Nonanal	−0.3755	↓	−0.9359	↓	1.20856	↑	−4.6067	↓
6	10.9	C10H16	1219.86	1219	1-Cyclohexene-1-carboxaldehyde, 2,6,6-trimethyl-	0.01689	↑	0.79479	↑	3.19713	↑	3.28437	↑
7	13.34	C15H24	1392.7	1393	Cyclohexane,1-ethenyl-1-methyl-2,4-bis(1-methylethenyl)-, [1S-(1α,2β,4β)]-	−0.1963	↓	0.8731	↑	1.9101	↑	−0.706	↓
8	13.38	C15H24	1395.62	1397	γ-Elemene	−0.4119	↓	0.98547	↑	1.97849	↑	0.84634	↑
9	13.73	C15H24	1422.48	1423	Tricyclo[2.2.1.0(2,6)]heptane,1,7-dimethyl-7-(4-methyl-3-pentenyl)-, (-)-	−0.3977	↓	0.72522	↑	−1.5615	↓	3.13969	↑
10	13.9	C15H24	1435.66	1435	Bicyclo[2.2.1]heptane,2-methyl-3-methylene-2-(4-methyl-3-pentenyl)-, (1S-endo)-	−0.5645	↓	1.112	↑	1.18175	↑	−0.424	↓
11	14.09	C8H10	1450.39	1450	(E)-β-Farnesene	−0.3332	↓	1.03452	↑	2.27293	↑	−3.4411	↓
12	14.26	C15H24	1463.57	1462	α-Farnesene	−0.3393	↓	0.50874	↑	1.14356	↑	−3.7874	↓
13	14.33	C15H24	1468.99	1468	Alloaromadendrene	−0.6932	↓	0.23713	↑	2.11348	↑	−1.3898	↓
14	14.47	C15H24	1479.84	1476	Spiro[4.5]dec-7-ene,1,8-dimethyl-4-(1-methylethenyl)-,[1S-(1π4π5π]-	−0.5067	↓	0.56542	↑	2.12905	↑	0.70809	↑
15	14.57	C15H24	1487.6	1485	1,6-Cyclodecadiene,1-methyl-5-methylene-8-(1-methylethyl)-,[S-(E,E)]-	−0.4456	↓	1.44055	↑	1.85713	↑	2.04415	↑
16	14.68	C13H20O	1496.12	1496	3-Buten-2-one,4-(2,6,6-trimethyl-1-cyclohexen-1-yl)-	−0.4164	↓	1.06994	↑	1.1758	↑	−0.6165	↓
17	14.7	C15H24	1497.67	1497	Naphthalene,1,2,3,4,4a,5,6,8a-octahydro-4a,8-dimethyl-2-(1-methylethenyl)-,[2R-(2α,4aα,8aβ)]-	−0.5278	↓	1.55448	↑	−0.0697	↓	−0.2368	↓
18	14.73	C15H32	1500	1500	Pentadecane	−0.5662	↓	0.57197	↑	1.95523	↑	0.02009	↑
19	14.78	C15H24	1504.1	1502	Naphthalene,1,2,4a,5,6,8a-hexahydro-4,7-dimethyl-1-(1-methylethyl)-	−0.8071	↓	0.74587	↑	1.39404	↑	−1.1603	↓
20	14.93	C15H24	1516.39	1513	(+)-Valencene	−0.452	↓	0.35627	↑	1.75483	↑	1.15871	↑
21	14.95	C11H16 O2	1518.03	1520	2(4H)-Benzofuranone,5,6,7,7a-tetrahydro-4,4,7a-trimethyl-, (R)-	−0.4897	↓	−0.1801	↓	−2.5388	↓	−2.2159	↓
22	15.47	C15H26O	1560.66	1559	1,6,10-Dodecatrien-3-ol, 3,7,11-trimethyl-	−0.5177	↓	0.07881	↑	−1.6998	↓	−5.8015	↓
23	15.55	C16H34	1567.21	1570	Pentadecane, 3-methyl-	−0.6434	↓	0.99403	↑	3.41088	↑	2.65057	↑
24	15.74	C15H24O	1582.79	1584	1H-Cycloprop[e]azulen-7-ol,decahydro-1,1,7-trimethyl-4-methylene-,[1ar-(1aα,4aα,7β,7aβ,7bα)]-	−0.5835	↓	−0.3625	↓	0.77657	↑	−4.1101	↓
25	15.78	C15H26O	1586.07	1587	1H-Cycloprop[e]azulen-4-ol, decahydro-1,1,4,7-tetramethyl-, [1aR-(1aπ4π4aπ7π7aπ7bπ]-	−0.3069	↓	0.32129	↑	1.80712	↑	−4.8364	↓
26	15.9	C15H26O	1595.9	1595	Ledol	−0.2061	↓	0.06467	↑	1.80252	↑	−1.2078	↓
27	15.98	C16H34	1602.56	1600	Hexadecane	−0.9242	↓	−0.7128	↓	0.37984	↑	0.94954	↑
28	16.29	C15H24O	1629.06	1624	α-Santalol	0.61358	↑	−0.128	↓	0.46372	↑	0.86582	↑
29	16.75	C15H24O	1668.38	1668	β-Santalol	−0.2857	↓	0.34556	↑	−0.9167	↓	0.58392	↑
30	16.83	C15H24O	1675.21	1672	Aromadendrene oxide-(1)	−1.0618	↓	1.5634	↑	1.02732	↑	−0.4852	↓
31	16.85	C15H24O	1676.92	1678	Aromadendrene oxide-(2)	−1.4179	↓	1.85217	↑	3.10534	↑	−1.6804	↓
32	17.10	C17H36	1698.29	1700	Heptadecane	−1.4769	↓	1.11836	↑	3.17258	↑	−0.5075	↓

Trends “↑” means upregulation and “↓” means downregulation.