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Copper chelating activity of sulfated polysaccharides from the brown algae (seaweed) D. justii. Each value is the mean ± standard deviation of three determinations: Different letters (a, b, c, d, e) indicate a significant difference (p < 0.05) between each concentration of the same sulfated polysaccharide. Different numbers (1, 2, 3) indicate a significant difference (p < 0.05) between the same concentrations of different sulfated polysaccharides.
