Table 2.
Chemical Composition | SC1 2 | SC2 2 | SC3 2 |
---|---|---|---|
Total sugar (%) | 46.43 ± 0.80 b | 41.74 ± 1.26 a | 56.41 ± 0.35 c |
Uronic acid (%) | 12.68 ± 0.25 a | 15.83 ± 0.90 b | 23.55 ± 1.99 c |
Fucose (%) | 28.77 ± 2.02 a b | 25.06 ± 1.75 a | 31.09 ± 1.00 b |
Sulfate (%) | 23.84 ± 0.08 a | 23.59 ± 0.41 a | 22.08 ± 0.55 a |
Protein (%) | 5.08 ± 0.32 b | 3.05 ± 0.48 a | 2.79 ± 0.17 a |
Polyphenols (%) | 3.52 ± 0.12 b | 2.63 ± 0.16 a | 2.77 ± 0.12 a |
Alginate (%) | 9.54 ± 0.41 a | 9.60 ± 0.68 a | 8.84 ± 0.49 a |
Sulfate/fucose (molar ratio) 1 | 1.42 ± 0.09 b | 1.62 ± 0.10 c | 1.22 ± 0.04 a |
Monosaccharide Compositions (Molar Ratio) | SC1 | SC2 | SC3 |
Fucose | 1 | 1 | 1 |
Mannose | 0.13 | 0.17 | 0.29 |
Rhamnose | 0.13 | 0.17 | 0.29 |
Glucose | ND 3 | ND | ND |
Glucuronic acid | 0.38 | 0.67 | 0.71 |
Galactose | 0.75 | 1.16 | 1.00 |
Xylose | 0.13 | 0.17 | 0.14 |
1 Sulfate/fucose (molar ratio) = (weight of sulfate/molecular weight of sulfate)/(weight of fucose/molecular weight of fucose); 2 Values are mean ± SD (n = 3); values in the same row with different letters (in a, b, and c) are significantly different (p < 0.05); 3 ND: not detected.