Seasonal variations of the composition and structural characteristics of polysaccharides from the brown alga Costaria costata
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- Imbs, T.I., Shevchenko, N.M., Sukhoverkhov, S.V. et al. Chem Nat Compd (2009) 45: 786. doi:10.1007/s10600-010-9507-7
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Seasonal variations of the polysaccharide composition of the brown alga Costaria costata were studied. It was found that the alga synthesized in April-May a high-molecular-weight (200–800 kDa) low-sulfated heterofucan; in July, primarily a low-molecular-weight (20–300 kDa) sulfated and acetylated galactofucan. A small amount (<0.01% of total alga mass) of laminaran (1,3;1,6-β-D-glucan) was observed in mature alga.