Table 3.

Comparison of indispensable amino acid (IAA) content and ratios in casein and β-conglycinin

		Caseinb		β-conglycininb		β-conglycinin+Metb,c
Indispensable Amino Acid (IAA)	IAAa Req. (mg/g)	IAA (mg/g)	IAA ratio	IAA (mg/g)	IAA ratio	IAA (mg/g)	IAA ratio
Arginine	36	36	0.99	91	2.53	88.8	2.48
Histidine	26	30	1.16	21	0.82	20.6	0.80
Isoleucine	48	53	1.10	50	1.05	49.1	1.03
Leucine	86	92	1.06	80	0.93	78.5	0.91
Lysine	73	98	1.34	72	0.99	70.7	0.97
Met + Cysd	46	49	1.04	18	0.39	36.3	0.78
Phed + Tyrd	101	106	1.04	101	0.99	98.6	0.97
Threonine	38	40	1.07	25	0.67	24.5	0.65
Tryptophan	12	13	1.06	6	0.51	5.9	0.50
Valine	56	67	1.19	42	0.74	40.7	0.73

^aBased on AIN-93G indispensable amino acid requirements for growing rodents

^bIAA content were from Hashidume et al. [73]

^c,dMet, methionine; Cys, cysteine; Phe, phenylalanine; Tyr, tyrosine