. 2020 Mar 12;25(6):1285. doi: 10.3390/molecules25061285

Table 1.

Amino acid composition (g/100 g) of degreased walnut powder and walnut protein [13,15,16].

Amino Acids	DFWF	WPC	WPI	WHO/FAO/UNU (2007) *
Amino Acids	DFWF	WPC	WPI	1–2	3–10	11–14	Adults
Met	1.16 $\pm$ 0.02 ^b	0.99 $\pm$ 0.08 ^b	1.44 $\pm$ 0.10 ^a				1.6
Val	4.18 $\pm$ 0.21 ^b	3.50 $\pm$ 0.18 ^c	4.62 $\pm$ 0.10 ^a	4.2	4.0	4.0	3.9
Thr	3.58 $\pm$ 0.21 ^a	2.55 $\pm$ 0.09 ^b	3.30 $\pm$ 0.12 ^a	2.7	2.5	2.5	2.3
His	2.38 $\pm$ 0.13 ^a	1.89 $\pm$ 0.09 ^b	2.30 $\pm$ 0.10 ^a	1.8	1.6	1.6	1.5
Ile	3.28 $\pm$ 0.10 ^b	3.03 $\pm$ 0.09 ^b	3.99 $\pm$ 0.06 ^a	3.1	3.1	30	3.0
Leu	7.13 $\pm$ 0.07 ^a	5.64 $\pm$ 0.12 ^b	7.29 $\pm$ 0.08 ^a	6.3	6.1	6.0	5.9
Lys	2.58 $\pm$ 0.05 ^a	2.01 $\pm$ 0.07 ^b	2.13 $\pm$ 0.11 ^b	5.2	4.8	4.8	4.5
Cys	0.84 $\pm$ 0.06 ^a	0.70 $\pm$ 0.12 ^b	0.81 $\pm$ 0.15 ^a				0.6
Phe	4.94 $\pm$ 0.05 ^a	3.49 $\pm$ 0.07 ^b	4.61 $\pm$ 0.12 ^a				3.8 **
Tyr	2.76 $\pm$ 0.22 ^b	2.30 $\pm$ 0.13 ^b	3.21 $\pm$ 0.09 ^a				3.8 **
Trp	5.50 $\pm$ 0.02			7.4	6.6	6.5	6.0
Pro	4.22 $\pm$ 0.07 ^a	2.33 $\pm$ 0.04 ^c	3.18 $\pm$ 0.01 ^b
Ala	4.74 $\pm$ 0.05 ^a	3.31 $\pm$ 0.15 ^b	4.29 $\pm$ 0.11 ^a
Arg	14.73 $\pm$ 0.09 ^a	11.24 $\pm$ 0.18 ^b	14.81 $\pm$ 0.11 ^a
Gly	5.43 $\pm$ 0.15 ^a	3.54 $\pm$ 0.11 ^c	4.18 $\pm$ 0.08 ^b
Ser	5.84 $\pm$ 0.19 ^a	3.96 $\pm$ 0.22 ^c	5.15 $\pm$ 0.07 ^b
Glu	22.16 $\pm$ 0.12 ^a	15.78 $\pm$ 0.20 ^c	19.49 $\pm$ 0.11 ^b
Asp	10.04 $\pm$ 0.21 ^a	6.95 $\pm$ 0.19 ^c	9.38 $\pm$ 0.11 ^b

DFWF, defatted walnut flour; WPC, walnut protein concentrate, WPI, walnut protein isolate; Met, methionine; Val, valine; Thr, threonine; His, histidine; Phe, phenylalanine; Ile, isoleucine; Leu, leucine; Lys, lysine; Pro, proline; Cys, cysteine; Tyr, tyrosine; Trp, tryptophan; Ala, alanine; Arg, argnine; Gly, glycine; Ser, serine; Glu, glutamic acid; Asp, aspartic acid; * Values in these columnsrepresentthe WHO/FAO/UNU (2007) recommended patterns of essential amino acids for 1–2, 3–10, 11–14 year oldchildren and adults. ** The total amount of Phe and Tyr is 3.8g/100g. ^a,b,c Numerical values with different letters in the same row are significantly different(P-value < 0.05).