Table 2.

Analyzed amino acid composition of raw walnuts.

		Crude protein estimate, g protein/100 g walnut
		N ×5.30	N ×6.25
		13.2	15.6
Amino acid	mg AA/g walnut	mg AA/g protein	mg AA/g protein
Indispensable
Arginine	22.30	168.94	143.22
Histidine	2.87	21.74	18.43
Isoleucine	5.81	44.02	37.32
Leucine	10.50	79.55	67.44
Lysine	4.02	30.45	25.82
Methionine	2.38	18.03	15.29
Phenylalanine	6.40	48.48	41.10
Threonine	4.96	37.58	31.86
Tryptophan	1.41	10.68	9.06
Valine	6.47	49.02	41.55
Dispensable
Alanine	6.24	47.27	40.08
Aspartic acid	14.00	106.06	89.92
Cystine	2.12	16.06	13.62
Glutamic acid	27.30	206.82	175.34
Glycine	7.13	54.02	45.79
Proline	5.39	40.83	34.62
Serine	7.57	14.01	48.62
Tyrosine	5.06	38.33	32.50
Sulfur amino acids (Met + Cys)	43.98	333.18	282.47
Aromatic AA (Phe, Tyr, Trp)	12.87	97.50	82.66

N, nitrogen; AA, amino acid; Met, methionine; Cys, cystine; Phe, phenylalanine; Tyr, tyrosine; Trp, tryptophan.