Table 2.
Concentration of free amino acids in brewer’s spent grain (BSG).
| Non-Essential AAs | Concentration (mg/kg dm) |
Essential AAs | Concentration (mg/kg dm) |
Essential AAs for Adults (mg/kg/day) 1 |
|---|---|---|---|---|
| Aspartic acid | 20 ± 1 | Histidine | 24 ± 1 | 10 |
| Glutamic acid | 43 ± 1 | Threonine | 15 ± 0 | 15 |
| Asparagine | 20 ± 0 | Methionine | 13 ± 1 | 10.4 |
| Serine | 18 ± 0 | Tryptophan | 14 ± 0 | 4 |
| Glutamine | 70 ± 2 | Valine | 38 ± 1 | 26 |
| Alanine | 29 ± 1 | Phenylalanine | 44 ± 1 | 25 |
| Arginine | 125 ± 2 | Isoleucine | 20 ± 1 | 20 |
| Glycine | 9 ± 0 | Leucine | 58 ± 1 | 39 |
| Tyrosine | 32 ± 1 | Lysine | 63 ± 1 | 30 |
| TOTAL | 335 ± 7 | TOTAL | 320 ± 7 | 184 |
| TAAs | 655 ± 14 | |||
Abbreviations: AAs = amino acids; TAAs = total free amino acids; dm = dry matter. 1 Ref. [25].