Table 5.
Volatile compounds identified from gochujang (salt conc. 20%) (unit: peak area %)

		Fermentation period (mon)
No.	Compounds name	0	1	2	3	4	5	10
Alcohols
3	ethanol	13.06	9.60	9.33	19.61	13.37	14.45	3.57
10	2-methyl-1-propanol	0.71	-	0.74	-	-	0.98	-
21	3-methyl-1-butanol	4.91	2.80	4.77	3.09	2.78	3.36	4.90
22	1-pentanol	4.71	-	-	-	2.74	-	-
36	1-hexanol	0.18	2.61	2.26	1.10	1.89	1.60	2.66
Aldehydes
48	benzaldehyde	-	1.12	1.13	0.78	1.47	2.52	0.86
Esters
2	ethyl acetate	42.37	23.78	13.59	9.82	5.83	7.42	10.30
11	3-methyl-1-butyl	1.54	-	2.61	0.46	1.24	0.55	1.12
	acetate
19	ethyl hexanoate	0.29	-	-	4.89	6.23	1.92	4.89
40	ethyl octanoate	0.27	-	-	0.64	0.89	0.69	0.88
65	2-phenylethyl acetate	10.78	-	-	-	-	-	-
Ketones
29	3-hydroxy-2-butanone	-	14.24	12.51	-	-	1.22	0.10
Furans
9	vinyl furan	-	-	-	-	-	-	0.54
23	2-pentyl furan	-	2.79	2.57	-	2.31	2.28	3.91
43	furfural	-	-	-	-	2.80	2.39	1.55
Pyrazines
44	tetramethyl pyrazine	0.56	2.46	2.37	2.62	3.14	2.50	3.36
Acids
41	acetic acid	2.61	1.78	2.07	-	3.33	2.36	2.44
58	3-methylbutanoic acid	-	4.59	1.63	2.28	4.18	3.27	4.15
Sulfur-containing
compounds
45	diallyl disulphide	0.33	3.66	3.14	4.58	4.39	1.60	4.51
Others
6	toluene	-	1.77	1.58	5.61	4.28	1.44	5.78
12	p-xylene	-	1.12	1.12	0.74	2.13	1.12	1.88
26	styrene	0.34	2.69	2.57	1.37	1.51	2.12	2.84