Table 2.

Threshold and odor activity values of aromatic compounds of melon juice.

ID	Aromatic compounds	Threshold (μg/kg)	OAV 1
			Control	UHT	HP2-1	HP2-2	HP4-1	HP4-2	HP6-1	HP6-2
1	2-Methyl-1-butyl acetate	8	1.06	0.48	1.02	1.22	1.15	0.89	0.43	0.39
2	Ethyl acetate	5	4.21	0.48	3.74	4.32	4.60	3.32	2.12	1.11
3	(E,Z)-3,6-Nonadien-1-ol	3	10.95	4.51	10.87	17.23	5.42	5.27	2.41	1.93
4	(Z)-3-Nonen-1-ol	1	127.55	33.26	120.96	183.21	46.21	40.75	15.02	12.96
5	Acetal	4.9	1.53	–	1.69	2.16	1.80	1.99	0.87	0.68
6	Nonanal	1.1	19.04	3.87	13.26	38.34	7.74	6.56	1.63	1.99
7	Octanal	0.587	103.66	–	117.01	165.02	130.85	122.31	1.34	1.10
8	β-Ionone	0.007	353.98	404.70	467.51	587.87	491.79	530.64	259.38	296.50
	Total		621.99	447.30	736.06	999.37	689.55	711.72	283.20	316.66

^aEach value is the mean of triplicate biological samples.

“–”is not detected.