Table 1.
Amino acid composition in the raw material (g kg−1; n = 2) and substrate specific nitrogen-to-protein conversion factor data of salmon (Salmo salar) and Cod (Gadus morhua) backbones.
| AA (g/kg) ** | Cod Backbone | Salmon Backbone |
|---|---|---|
| Alanine | 11.0 | 9.9 |
| Arginine | 11.0 | 9.0 |
| Asparagine * | 7.1 | 6.3 |
| Aspartate | 8.9 | 7.7 |
| Glutamate | 16.1 | 12.0 |
| Glutamine * | 7.9 | 7.0 |
| Glycine | 17.0 | 14.0 |
| Histidine | 3.3 | 3.6 |
| Isoleucine | 6.4 | 5.7 |
| Leucine | 12.0 | 9.6 |
| Lysine | 13.0 | 11.0 |
| Methionine | 5.4 | 4.6 |
| Phenylalanine | 5.9 | 5.2 |
| Proline | 8.8 | 7.8 |
| Serine | 8.6 | 6.5 |
| Threonine | 6.9 | 6.2 |
| Tyrosine | 6.9 | 4.0 |
| Valine | 7.4 | 6.7 |
| Hydroxyproline | 3.8 | 3.5 |
| Nitrogen | 27 | 25 |
| NH3 (acid digest) | 1.8 | 1.6 |
| Total AA | 167.4 | 140.3 |
| Total n | 27.0 | 25.0 |
| fN *** | 5.5 | 5.2 |
* Calculated based on released NH3, and assuming 1:1 ratio of released NH3 between Asp and Glu [29]. ** Amino acid. *** Nitrogen-to-protein conversion factor.