Table 4.
Volatile compounds identified from gochujang (salt conc. 15%)

		Fermentation period (mon)
No.	Compounds name	0	1	2	3	4	5	10
Alcohols
3	ethanol	17.51	10.08	12.46	28.05	28.24	10.33	8.03
10	2-methyl-1-propanol	0.88	-	0.82	2.60	2.56	0.52	0.04
21	3-methyl-1-butanol	9.61	5.77	4.05	12.77	10.93	4.18	7.05
22	1-pentanol	-	6.68	-	-	12.27	-	0.20
36	1-hexanol	0.42	2.55	0.27	1.61	1.35	0.13	1.24
Aldehydes
48	benzaldehyde	-	-	-	0.20	0.36	-	0.12
Esters
2	ethyl acetate	23.87	10.16	37.33	8.39	5.33	29.03	8.32
11	3-methyl-1-butyl acetate	2.72	-	0.59	1.07	2.12	0.26	1.43
19	ethyl hexanoate	-	-	-	3.40	5.40	0.77	5.89
40	ethyl octanoate	0.55	-	-	0.58	1.06	0.33	1.06
65	2-phenylethyl acetate	14.79	-	-	-	0.13	0.08	0.10
Ketones
29	3-hydroxy-2-butanone	0.52	18.40	0.61	-	-	0.32	-
Furans
9	vinyl furan	-	-	-	-	-	-	0.49
23	2-pentyl furan	0.45	2.57	0.64	1.05	0.82	0.31	1.98
43	furfural	-	-	-	0.32	0.49	-	0.10
Pyrazines
44	tetramethyl pyrazine	0.61	2.57	0.57	1.00	1.76	0.90	0.98
Acids
41	acetic acid	4.17	1.50	1.42	0.69	0.72	1.17	2.21
58	3-methylbutanoic acid	-	2.77	-	1.26	1.32	0.48	2.10
Sulfur-containing
compounds
45	diallyl disulphide	0.67	3.50	0.63	2.86	2.12	-	2.29
Others
6	toluene	-	5.46	0.52	9.40	4.80	0.46	18.04
12	p-xylene	-	-	-	0.81	1.06	-	0.99
26	styrene	0.91	4.11	1.29	2.11	2.31	0.75	4.25