Table 2.
Typical amino acid profile expressed per 100 g protein.
| Amino Acids (AA) | Whey Protein Isolate (%) | Rice Protein Concentrate (%) | Potato Protein Isolate (%) |
|---|---|---|---|
| Histidine * | 2.0 | 2.2 | 1.8 |
| Isoleucine *,+ | 5.6 | 4.2 | 5.9 |
| Leucine *,+ | 12.7 | 8.3 | 9.8 |
| Lysine * | 10.2 | 2.9 | 7.6 |
| Methionine * | 2.3 | 3.0 | 1.1 |
| Phenylalanine * | 3.5 | 5.6 | 7.0 |
| Threonine * | 4.7 | 3.7 | 4.7 |
| Tryptophan * | 2.9 | 1.5 | 1.5 |
| Valine *,+ | 5.4 | 5.6 | 8.6 |
| Arginine | 2.4 | 8.3 | 4.8 |
| Cysteine | 2.8 | 2.4 | 2.4 |
| Glutamic Acid/Glutamine | 16.1 | 17.9 | 7.9 |
| Glycine | 1.7 | 4.5 | 5.7 |
| Proline | 4.7 | 4.8 | 5.4 |
| Tyrosine | 3.6 | 5.6 | 5.4 |
| Alanine | 4.9 | 5.7 | 2.5 |
| Aspartic Acid/Asparagine | 11.4 | 8.9 | 13.1 |
| Serine | 3.3 | 5.1 | 4.8 |
| Total EAA | 49.3 | 37 | 48 |
| Total BCAA | 23.7 | 18.1 | 24.3 |
* Essential Amino Acid (EAA), + branch-chain amino acids (BCAA).