Table 4. Free amino acids content (mg/100 g) of longissimus lumborum muscle by cattle breeds

Items	Cattle breed
Items	Chikso	BHW	JBC	Hanwoo
Glutamic acid	4.57±1.73^b	3.81±1.29^bc	3.03±0.36^c	6.78±0.83^a
Aspartic acid	1.81±0.42^b	2.28±0.20^a	2.18±0.02^a	1.33±0.00^c
Asparagine	1.02±0.44^b	1.65±0.20^a	1.45±0.09^a	0.53±0.22^c
Glutamine	13.91±5.96^a	6.66±2.78^b	7.70±2.56^b	18.86±7.95^a
∑ Umami taste	21.32±6.80^b	14.41±2.96^c	14.37±2.97^c	27.49±7.44^a
Glycine	3.07±2.66^b	0.70±0.42^c	0.56±0.26^c	4.96±2.14^a
Alanine	15.28±7.36^ab	9.20±3.00^c	11.04±2.37^bc	18.89±4.07^a
Serine	3.03±0.48^ab	3.46±0.82^a	2.56±0.25^b	3.15±0.57^ab
Proline	2.56±0.67	2.22±0.39	2.18±0.32	2.25±0.51
Threonine	3.14±0.74	2.96±0.53	2.58±0.23	2.92±0.53
∑ Sweet taste	27.09±11.33^a	18.54±3.90^b	18.91±3.05^b	32.17±7.62^a
Lysine	3.57±0.87	3.84±0.94	3.74±0.47	3.51±0.58
Valine	3.22±1.41^ab	2.68±0.82^b	2.26±0.40^b	3.93±0.93^a
Leucine	5.35±2.69^b	4.58±2.09^bc	2.94±0.54^c	7.74±2.17^a
Isoleucine	1.99±0.57	2.19±0.69	1.81±0.27	2.03±0.50
Arginine	5.56±1.53	5.41±0.97	6.15±0.57	5.84±1.40
Phenylalanine	3.51±0.76^ab	3.69±1.06^a	2.74±0.23^b	3.88±0.87^a
Tyrosine	4.02±0.66^ab	4.10±0.77^a	3.39±0.20^b	4.44±0.86^a
∑ Bitter taste	27.23±7.78^ab	26.49±6.57^ab	23.03±2.48^b	31.37±7.21^a

Means in a same row with different superscripts differ significantly (p<0.05).
BHW, black Hanwoo; JBC, Jeju black cattle.