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Fucoidan, a complex sulfated polysaccharide containing substantial percentages of L-fucose and sulfate ester groups, is a constituent of brown algae and some marine invertebrates. Besides L-fucose, it frequently contains D-xylose, D-galactose, D-mannose and D-glucuronic acid. Fucoidan has no determined molecular formula, and its structure built up mainly of (1→2)-linked, 4-O-sulfated fucopyranose residues has been generally accepted for fucoidan from Laminaria Japonica/Undaria Pinnatifida.
Test items | Spcification |
Total sugar content,% | ≥20 |
L-fucose,% | ≥10 |
Moisture,% | ≤15.0 |
Lead, mg/kg | ≤1 |
Inorganic arsenic, mg/kg | ≤1.5 |
Methylmercury, mg/kg | ≤0.5 |
Polychlorinated biphenyls, mg/kg | ≤2.0 |
Aerobic bacterial count, cfu/g | ≤1000 |
Mould, cfu/g | ≤300 |
Coli group, MPN/100g | ≤30 |
Pathogenic bacteria | Can’t be detected |
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