Table 3
Change of free amino acid of Yakju brewed at different fermentation temperatures (15℃, 20℃, and 25℃)
(unit: mg/L)

		Control			Y297
		15℃	20℃	25℃	15℃	20℃	25℃
Essentialaminoacid	Isoleucine	8.35±2.231)	6.85±0.20	8.61±1.63	17.04±7.59	28.55±2.96	6.96±0.18
	Leucine	25.15±3.59	26.32±2.20	26.68±3.13	50.24±7.19	101.70±8.18	28.97±0.81
	Methionine	5.95±3.33	2.51±0.21	2.07±0.65	7.61±0.95	10.25±1.75	1.36±0.25
	Valine	15.54±1.67	16.67±0.71	19.90±5.31	24.93±5.05	57.82±4.70	14.77±0.73
	Threonine	3.47±0.38	3.19±0.21	3.30±1.62	7.69±3.60	24.08±4.22	4.21±0.71
	Phenylalanine	17.63±1.96	20.34±1.67	17.26±0.64	36.31±7.10	71.21±5.90	20.75±1.07
	Lysine	14.06±0.48	9.55±0.21	5.87±0.35	20.70±2.75	28.79±3.40	15.20±0.25
	Total	90.15±13.48	86.00±5.50	86.04±14.01	154.20±29.65	322.40±25.23	92.23±2.90
Nonessentialamino acid	Arginine	73.36±1.62	34.32±3.22	22.88±4.36	73.90±17.96	69.51±4.41	39.76±1.73
	Histidine	11.01±0.87	2.83±0.33	1.06±0.12	11.16±8.55	12.13±0.81	5.93±0.14
	Asparticacid	8.17±0.69	13.11±2.39	7.46±0.05	26.37±7.95	39.00±5.80	9.93±0.41
	cysteine	11.21±3.33	3.05±0.89	3.52±0.26	12.43±1.01	19.65±1.54	23.79±1.97
	Serine	7.37±0.93	6.85±0.51	5.96±0.83	19.52±8.48	54.89±5.98	10.96±1.27
	Glutamineacid	32.21±1.03	20.82±0.61	44.00±30.65	52.42±19.56	95.76±0.11	35.11±0.23
	Tyrosine	12.96±2.08	16.61±0.63	10.60±1.92	25.16±4.36	58.16±4.55	15.53±1.00
	Total	156.30±9.00	104.07±10.54	128.07±17.70	202.05±49.87	355.03±24.84	137.88±1.39
Aminoacid derivative	γ -Amino-n-butyricacid	6.88±1.14	0.90±0.23	3.14±1.27	5.65±2.66	38.16±4.60	8.20±1.04
	Ethanolamine	3.43±0.78	1.87±0.22	1.48±0.04	5.07±0.70	6.33±0.81	8.18±0.57
	Ammonia	3.75±0.26	6.44±0.46	6.70±0.37	6.95±1.04	12.54±0.37	4.28±1.23
	Ornithine	21.35±0.90	7.71±0.87	6.74±0.15	34.16±4.11	50.34±6.74	26.00±3.49
	3-Methylhistidine	2.08±1.80	ND2)	ND	4.75±0.80	ND	ND
	Phospho-serine	7.02±0.19	7.70±0.21	7.62±0.54	7.21±0.66	10.71±0.10	7.99±0.15
	Taurine	72.11±1.52	56.45±0.94	57.74±1.09	72.24±4.26	54.43±1.91	47.91±0.33
	Urea	15.67±2.08	ND	ND	ND	9.62±0.544	ND
	Glycin	17.53±1.33	14.02±0.42	9.39±4.17	22.70±5.36	47.92±3.77	13.56±2.28
	Alanine	45.93±0.66	36.56±1.20	27.28±3.70	92.18±21.33	125.07±6.54	57.26±4.65
	Citruline	1.22±0.13	ND	ND	4.22±5.72	5.57±2.67	ND
	L-Cystathionine	5.13±2.22	0.77±0.11	0.55±0.41	6.51±3.24	2.34±0.76	1.16±0.18
	Total	202.09±6.90	132.42±0.91	126.47±20.16	251.34±32.28	363.04±16.63	174.55±12.07
	Total	448.53±29.00	322.49±16.08	349.41±50.27	607.58±111.79	1,040.48±64.20	404.66±16.24

¹⁾Values are mean±SD (n=3).
²⁾ND, Not detected.