Table 1.
Physicochemical composition of the different seaweeds studied (% w/w dry seaweed).
| Parameter | Gracilaria sp. | P. dioica | C. tomentosum | U. rigida | A. esculenta |
|---|---|---|---|---|---|
| Humidity | 8.54 ± 0.36 | 9.08 ± 0.03 | 9.61 ± 0.29 | 15.5 ± 0.13 | 13.0 ± 0.79 |
| Salt | 18.1 ± 1.21 | 21.2 ± 0.85 | 31.4 ± 1.48 | 14.7 ± 0.74 | 15.3 ± 0.21 |
| Ash | 24.8 ± 0.00 | 19.2 ± 0.01 | 45.5 ± 0.05 | 23.2 ± 0.01 | 31.1 ± 0.02 |
| Crude Protein | 28.2 ± 0.00 | 23.9 ± 0.23 | 14.2 ± 0.04 | 14.6 ± 0.35 | 12.6 ± 0.16 |
| Acid insoluble residue | 9.71 ± 0.86 | 10.1 ± 0.01 | 16.2 ± 0.90 | 19.6 ± 0.77 | 19.0 ± 0.75 |
| N | 5.27 ± 0.27 | 4.51 ± 0.30 | 3.03 ± 0.07 | 3.21 ± 0.24 | 2.33 ± 0.12 |
| C | 30.9 ± 0.50 | 38.1 ± 0.44 | 21.7 ± 0.09 | 28.6 ± 0.29 | 28.5 ± 0.83 |
| C/N | 5.86 | 8.47 | 7.17 | 8.94 | 12.2 |
| Carbohydrate | 9.59 ± 0.08 | 12.9 ± 0.20 | 33.3 ± 1.27 | 29.8 ± 2.06 | 12.2 ± 1.35 |
| Cellulose | 3.98 ± 0.13 | 1.55 ± 0.44 | 10.6 ± 0.11 | 13.7 ± 1.45 | 7.08 ± 1.16 |
| Agar | 2.58 ± 0.01 | 4.84 ± 0.39 | - | - | - |
| Arabinose | 3.02 ± 0.02 | 6.49 ± 0.17 | - | - | 4.77 ± 0.88 |
| Xylan | - | - | 22.7 ± 2.38 | 3.47 ± 0.48 | 0.394 ± 0.18 |
| Rhamnan | - | - | - | 12.6 ± 1.59 | - |
| Lipids | 2.09 ± 0.16 | 1.92 ± 0.15 | 6.39 ± 1.12 | 1.91 ± 0.33 | 2.01 ± 0.17 |
| Soluble proteins (g kg−1) | 1.49 ± 0.11 | 4.06 ± 0.20 | 0.905 ± 0.11 | 1.45 ± 0.06 | 0.213 ± 0.01 |
| Reducing sugars (g kg−1) | 1.86 ± 0.11 | 2.44 ± 0.25 | 1.47 ± 0.21 | 4.96 ± 0.51 | 2.43 ± 0.00 |
| Phenols (g GAE kg−1) | 1.80 ± 0.02 | 4.47 ± 0.37 | - | - | - |