Table 2.
Influence of the extraction temperature on the sulphate and monosaccharide composition of the extracts obtained after alginate precipitation. Data values represent mean ± standard deviation (n ≥ 3); columns with different superscript letters are significantly different at the p ≤ 0.05 level.
| Tmax (°C) | Sulphate Content (%) | Glu (%) | Xyl+Gal+ Man (%) | Rha (%) | Fuc (%) | Mannitol (%) | Acetyl Groups (%) |
|---|---|---|---|---|---|---|---|
| 70 | 3.71 ± 0.08 a | 16.69 ± 0.88 a | 15.31 ± 0.21 b | 2.29 ± 0.01 d | 6.00 ± 0.14 c | - | 2.52 ± 0.21 c |
| 80 | 1.95 ± 0.03 c | 7.15 ± 0.25 c | 9.39 ± 0.55 c | 3.17 ± 0.39 c | 3.91 ± 0.20 d | - | 2.60 ± 0.59 c |
| 90 | 1.26 ± 0.02 d | 5.71 ± 0.48 d | 10.43 ± 0.48 c | 4.49 ± 0.23 b | 8.54 ± 0.20 b | 4.02 ± 0.20 | 3.90 ± 0.24 b |
| 100 | 2.23 ± 0.07 b | 10.70 ± 0.98 b | 20.61 ± 0.77 a | 6.86 ± 0.20 a | 18.01 ± 0.02 a | - | 6.30 ± 0.29 a |
Fuc: fucose; Gal: galactose; Glu: glucose; Man: mannose; Rha: rhamnose; Xyl: xylose.