Rhodomelaceae Seaweed 6 algae 6 article 6 priority journal 6 seaweed 6 structure analysis 6 Ceramiales 4 Chemical structure 4 Magnetic Resonance Spectroscopy 4 Methylation 4 Methylation analysis 4 NMR spectroscopy 4 Sulfated galactans 4 controlled study 4 extraction 4 methylation 4 nonhuman 4 sulfate 4 sulfation 4 unclassified drug 4 water 4 xylose 4 2 o methyl alpha galactose 2 3,6 anhydro alpha galactose 2 3,6 anhydro alpha galactose 2 sulfate 2 Acanthophora 2 Acanthophora spicifera 2 Agarans 2 Algae 2