Table 1.
Yield, molecular weight, and M/G ratio of sodium alginates (SAs) A.
| Sample B | Yield (%) C | Mw (kDa) | M (%) | G (%) | M/G |
|---|---|---|---|---|---|
| SA | 100.00 a | 861 ± 22 c | 85.08 ± 0.27 b | 14.92 ± 0.16 c | 5.70 ± 0.05 d |
| SA-M1 | 94.04 ± 2.82 b | 221 ± 11 d | 85.85 ± 0.41 a | 14.15 ± 0.22 d,e | 6.07 ± 0.06 c |
| SA-M2 | 89.76 ± 1.31 c | 126 ± 6 e | 86.26 ± 0.33 a | 13.74 ± 0.12 e,f | 6.28 ± 0.05 a |
| SA-M4 | 86.21 ± 1.66 d | 98 ± 5 f | 86.46 ± 0.46 a | 13.54 ± 0.13 f | 6.38 ± 0.06 a |
| SA-M6 | 84.75 ± 0.71 d | 89 ± 5 g | 86.25 ± 0.39 a | 13.75 ± 0.23 e,f | 6.27 ± 0.06 a,b |
| SA-M8 | 80.00 ± 0.98 e | 85 ± 8 h | 86.07 ± 0.21 a | 13.93 ± 0.16 e | 6.18 ± 0.04 b |
| SA-C1 | - | 993 ± 46 a | 82.72 ± 0.45 c | 17.28 ± 0.16 b | 4.79 ± 0.06 f |
| SA-C2 | - | 911 ± 24 b | 85.74 ± 0.30 a | 14.26 ± 0.13 d | 6.01 ± 0.05 c |
| SA-C3 | - | 938 ± 33 a,b | 79.89 ± 0.26 d | 20.11 ± 0.14 a | 3.97 ± 0.04 g |
A The date were reported as the mean value ± standard deviation, date with different superscript letters (a–h) in the same column were significantly different (p < 0.05). B SA: Sodium alginate; SA-M1-8: Sodium alginate moidfied for 1, 2, 4, 6 and 8 h; SA-C1-3: Three commercial sodium alginates. C SA-C1, SA-C2 and SA-C3 were commercial products and their yields were not obtained.