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Amino acid content of collagen from body and foot of Donax cuneatus
| Amino acids | Body (%) | Foot (%) |
|---|---|---|
| Hydroxyproline | 5.4 | 6.2 |
| Aspartic acid | 1.1 | 6.6 |
| Threoninea | 7.1 | 5.2 |
| Serine | 5.2 | 5.6 |
| Glutamic acid | 15.7 | 15.3 |
| Proline | 6.4 | 6.4 |
| Glycine | 20.5 | 19.2 |
| Alanine | 3.8 | 2.4 |
| Valinea | 4.7 | 6.2 |
| Methioninea | 1.5 | 0.9 |
| Isoleucinea | 2.7 | 2.6 |
| Leucinea | 5.8 | 4.7 |
| Tyrosine | 4.9 | 3.6 |
| Phenylalaninea | 1.1 | 0.7 |
| Lysinea | 4.0 | 2.2 |
| Histidine | 1.0 | 3.1 |
| Arginine | 9.1 | 9.1 |
| Total | 100 | 100 |
| Imino acids | 11.8 | 12.6 |
a Essential amino acids
