Table 2.
Amino acid composition of different body parts of commercial tuna species
| Amino acids | Yellowfin tuna (Thunnus albacares) | Bigeye tuna (Thunnus obesus) | Atlantic bluefin tuna (Thunnus thynnus) | Pacific bluefin tuna (Thunnus orientalis) | Skipjack tuna (Katsuwonus pelamis) |
|---|---|---|---|---|---|
| Serine | 3.23 | 3.12 | 3.72 | 26.7 | 2.69 |
| Tyrosine | 3.19 | 3.14 | 1.95 | 19.8 | 2.54 |
| Proline | 3.08 | 2.99 | 5.19 | 2.7 | – |
| Aspartic acid | 8.29 | 8.11 | 12.45 | 5.2 | 7.35 |
| Glutamic acid | 12.45 | 11.28 | 10.90 | 73.7 | 11.22 |
| Glycine | 3.75 | 3.66 | 13.96 | 3.2 | 4.83 |
| Alanine | 5.14 | 5.02 | 22 | 32.3 | 5.04 |
| Cystine | 0.44 | 0.49 | – | – | – |
| Arginine | 5.11 | 4.96 | 1.98 | 34.2 | 4.85 |
| Threonine | 3.85 | 3.75 | 6.85 | 24.8 | 3.30 |
| Valine | 4.54 | 4.63 | 8.2 | 19.1 | 4.25 |
| Methionine | 2.55 | 2.76 | 2.04 | 15.4 | 2.16 |
| Isoleucine | 4.06 | 4.01 | 9.15 | 15.5 | 3.89 |
| Leucine | 6.99 | 6.86 | 17.75 | 38.7 | 5.89 |
| Phenylalanine | 3.30 | 3.32 | 5.88 | 21.1 | 3.23 |
| Lysine | 8.19 | 7.93 | 14.86 | 41.3 | 6.29 |
| Tryptophan | 0.88 | 0.86 | – | 7.0 | – |
| Histidine | 5.49 | 5.26 | 6.10 | 17.4 | 6.72 |
| References | Peng et al. 2013 | Peng et al. 2013 | Balestrieri et al. 1978 | Cho et al. 2022 | Doe et al. 2020 |