Carbohydrate sulphates

Structural analysis and antiviral activity of a sulfated galactan from the red seaweed Schizymenia binderi (Gigartinales, Rhodophyta)

“…1) is similar to those reported for the desulfated polysaccharides from Champia novae-zealandiae and Plocamium costatum. 34,35 Both polysaccharides showed a backbone structure of alternating 3-linked-b-D D-galactopyranosyl and 4-linked a-galactopyranosyl residues. The galactose in the latter was present in L L-and D D-configuration in variable proportions.…”

Anti-herpes simplex virus activity of sulfated galactans from the red seaweeds Gymnogongrus griffithsiae and Cryptonemia crenulata

“…Extra reducing agent (N-methylmorpholine borane) was used to quantify the sugar components of the galactans from C. crenulata [19]. The alditol products of the hydrolysis were acetylated and analysed by GC and GC-MS as alditol acetates.…”

The system of galactans from Cryptonemia crenulata (Halymeniaceae, Halymeniales) and the structure of two major fractions. Kinetic studies on the alkaline cyclization of the unusual diad G2S→D(L)6S

“…51 It is worth noting that the concentration of Ca 2+ and Mg 2+ increased about 10 times in the extract (C2) obtained under the harshest conditions (Table 2). Present evidence suggests that the presence of both carrageenan and agaran structures in red seaweeds is not exceptional but a general fact 5,7,11,18,22,23,25,[52][53][54][55][56][57][58][59][60][61][62][63] and that the traditional division of the red seaweeds in carrageenophytes and agarophytes can be maintained only if it refers to the major type (and not the only one) of polysaccharides biosynthesized by the seaweed.…”