Table 3
Free amino acid compositions of Korean and Chinese buckwheats (mg/100 g samples).

Amino acids	Korean		Chinese
	Common buckwheat	Tartary buckwheat	Common buckwheat	Tartary buckwheat
Aspartic acid	1,198.1±6.36	1,105.1±3.60	1,306.9±16.32	1,403.5±8.53
Threonine	496.6±0.56	449.3±1.02	554.9±7.73	578.4±8.27
Serine	618.3±1.18	568.9±3.79	668.3±5.38	720.9±12.10
Glutamine	2,612.1±13.89	2,250.9±2.24	2,923.8±31.17	2,996.1±78.87
Proline	359.5±8.62	322.3±9.92	396.3±4.40	408.2±11.77
Glycine	748.9±4.18	675.0±2.18	852.0±8.92	876.3±8.73
Alanine	552.9±5.04	503.9±1.62	605.2±9.84	638.9±4.54
Valine	461.4±6.71	487.9±2.56	609.5±6.28	684.2±13.98
Methionine	152.9±7.62	169.8±4.36	202.2±8.45	204.8±4.91
Isoleucine	344.9±2.19	379.8±2.20	458.2±10.81	546.2±4.42
Leucine	790.7±5.35	750.9±6.57	912.9±23.68	979.9±4.51
Tyrosine	287.2±16.54	292.2±6.92	354.1±13.57	416.7±9.08
Phenylalanine	568.8±2.23	533.0±2.99	664.9±3.85	718.7±5.39
Lysine	727.3±7.31	669.1±1.51	803.1±12.07	807.0±8.68
Histidine	268.3±4.63	264.1±1.32	313.9±4.46	359.2±1.20
Arginine	1,061.0±13.15	932.5±8.70	1,267.8±30.09	1,388.6±1.11