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. 2023 Jul 15;28(14):5431. doi: 10.3390/molecules28145431

Table 2.

Amino acid profiles (% w/w) of faba bean flour and protein and selected non-faba-bean products for comparison.

Amino Acids Faba Bean Protein Concentrate Protein Isolate Other Protein Casein e FAO/WHO Requirement
Whole Seeds a Dehulled Seeds a FBC b FBI c SPI d 2–5-Year-Old f Adult f
Histidine 2.56 2.43 2.39 2.80 2.81 2.70 1.90 1.60
Isoleucine 4.1 3.97 3.73 3.80 4.35 4.90 2.80 1.3
Leucine 7.5 7.25 7.10 8.0 6.79 8.40 6.60 1.90
Lysine 6.43 6.16 6.34 7.0 5.23 7.10 5.80 1.60
Methionine 0.89 0.79 0.60 0.100 0.92 2.60 - -
Phenylalanine 4.25 4.07 4.13 4.90 5.14 4.50 - -
Threonine 3.65 3.45 3.54 3.70 3.98 3.70 3.40 0.90
Valine 4.75 4.56 4.14 4.10 4.28 6.0 3.50 1.30
Alanine 3.97 3.78 3.85 4.40 3.72 2.7 - -
Arginine 9.73 10.21 10.48 10.00 7.35 3.3 - -
Aspartic acid 11.2 10.71 10.30 13.30 11.47 6.3 - -
Cysteine 1.18 1.13 - 5.00 0.05 0.04 -
Glutamic acid 16.78 16.05 16.25 19.90 20.67 19.0 - -
Glycine 4.38 4.06 3.81 4.90 3.74 1.60 - -
Serine 4.98 4.74 4.87 6.30 5.32 4.60 - -
Tyrosine 3.67 3.50 3.05 2.63 3.61 5.50 -
Proline 4.22 4.09 4.24 3.40 5.13 - - -

Note: tryptophan was not quantified due to analytical challenges and low quantities. Data obtained from a [11]; b [51]; c [33]; d [52]; e [53]; f [50].