The composition and structural characteristics of polysaccharides of the brown alga Eisenia bicyclis
- The composition and structural characteristics of polysaccharides of the brown alga Eisenia bicyclis
- Men'shova, R. V.; S. P. Ermakova; 엄병헌; T. N. Zvyagintseva
- brown algae; Eisenia bicyclis; polysaccharides; laminaran; fucoidan; alginate
- Issue Date
- Russian journal of marine biology
- VOL 39, NO 3, 208-213
- The present study examines the polysaccharide composition of the brown alga Eisenia bicyclis.
The major polysaccharide of E. bicyclis is shown to be sodium alginate (15.8% of the dry defatted alga weight). The yields of laminaran and fucoidan were 1.4% and 1.3% of the dry defatted alga weight, respectively.
The alga contains laminaran (1,3;1,6-β-D-glucan) that has a unique structure, a high content of 1,6-linked D glucose residues (the ratio of 1,3 : 1,6 linkage is 1.5 : 1), and an unusually high molecular weight (19–27 kDa). The fucoidan fractions isolated from E. bicyclis are sulfated and acetylated heteropolysaccharides that differ in their sulfate content and monosaccharide composition.
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