Table 2.
Amino acid profiles of the total proteins in jellyfish samples of Aurelia sp.1, Cotilorhiza tuberculata and Rhizostoma pulmo. Data are expressed as mean of three replicates as mg/100 g of dry powder ± standard deviation (SD) and as percentage of total amino acids.
| Aurelia sp.1 | C. tuberculata | R. pulmo | ||||
|---|---|---|---|---|---|---|
| mg/100 g ± SD | % | mg/100 g ± SD | % | mg/100 g ± SD | % | |
| Alanine (Ala) | 7.1 ± 0.3 | 4.5 | 2.2 ± 0.2 | 4.3 | 3.5 ± 0.2 | 3.9 |
| Arginine (Arg) | 1.1 ± 0.0 | 0.7 | n.d. | - | 1.8 ± 0.0 | 2.0 |
| Aspartic acid + Asparagine (Asx) * | 3.2 ± 0.2 | 2.0 | 1.3 ± 0.1 | 2.5 | 2.9 ± 0.6 | 3.2 |
| Cysteine (Cys) | 4.1 ± 0.2 | 2.6 | n.d. | - | 1.2 ± 0.0 | 1.3 |
| Glutamic acid + Glutamine (Glx) ** | 13.6 ± 0.3 | 8.7 | 8.2 ± 0.6 | 16.0 | 13.7 ± 0.2 | 15.2 |
| Glycine (Gly) | 55.4 ± 1.1 | 35.2 | 3.0 ± 0.1 | 5.9 | 4.8 ± 0.5 | 5.3 |
| Histidine (His) e | n.d. | - | 4.0 ± 0.1 | 7.8 | 5.0 ± 0.4 | 5.6 |
| Isoleucine (Ile) e | 6.8 ± 0.3 | 4.3 | 2.9 ± 0.5 | 5.7 | 4.9 ± 0.7 | 5.5 |
| Leucine (Leu) e | n.d. | - | 3.8 ± 0.6 | 7.4 | 8.2 ± 0.4 | 9.1 |
| Lysine (Lys) e | 9.4 ± 0.3 | 6.0 | 3.1 ± 0.5 | 6.1 | 6.2 ± 0.4 | 6.9 |
| Methionine (Met) e | 5.9 ± 0.9 | 3.8 | 2.7 ± 0.5 | 5.3 | 4.1 ± 0.7 | 4.6 |
| Phenylalanine (Phe) e | 10.4 ± 0.3 | 6.6 | 4.1 ± 0.2 | 8.0 | 8.4 ± 0.8 | 9.3 |
| Proline (Pro) | 4.3 ± 0.3 | 2.7 | 2.6 ± 0.3 | 5.1 | 3.5 ± 0.2 | 3.9 |
| Serine (Ser) | 9.5 ± 0.4 | 6.0 | 2.8 ± 0.0 | 5.5 | 6.0 ± 0.8 | 6.7 |
| Threonine (Thr) e | 10.1 ± 0.9 | 6.4 | 3.8 ± 0.0 | 7.4 | 4.5 ± 0.1 | 5.0 |
| Tyrosine (Tyr) | 9.5 ± 0.2 | 6.0 | 3.6 ± 0.2 | 7.0 | 6.8 ± 0.6 | 7.6 |
| Tryptophan (Try) e | n.d. | - | n.d. | - | n.d. | - |
| Valine (Val) e | 6.8 ± 0.5 | 4.3 | 3.0 ± 0.3 | 5.9 | 4.4 ± 0.4 | 4.9 |
| ∑AA | 157.2 ± 6.2 | 100 | 51.1 ± 4.2 | 100 | 89.9 ± 7.0 | 100 |
| ∑EAA | 49.4 ± 3.2 | 31.4 | 27.4 ± 2.7 | 53.6 | 45.7 ± 3.9 | 50.8 |
| ∑CAA | 93.4 ± 2.3 | 59.4 | 20.2 ± 1.2 | 39.5 | 36.6 ± 2.3 | 40.7 |
| ∑AAA | 19.9 ± 0.5 | 12.7 | 11.7 ± 0.5 | 22.9 | 20.2 ± 1.8 | 22.5 |
* As sum of aspartic acid and asparagine; ** As sum of glutamic acid and glutamine; e essential amino acids; ∑AA, total amino acids; ∑EAA, sum of essential amino acids; ∑CAA, sum of conditionally essential amino acids; ∑AAA, sum of aromatic amino acids; SD, standard deviation; n.d., not detected.