Carrageenans
Molecular structure
Many red seaweeds contain polysaccharides made up of sulfated galactose units. In carrageenans, all the galactose units are in the D form. Their sulfate content is between 15 and 40 %.

Many red seaweeds contain polysaccharides made up of sulfated galactose units. In carrageenans, all the galactose units are in the D form. Their sulfate content is between 15 and 40 %.
