Several glycolipids were isolated from Spirulina maxima, an edible blue-green algae, by systematic fractionation with different solvents. Structural investigation by using methylation, GC- MS, and enzymic techniques indicated that the major glycolipids are O-β-D-galactosyl-(1→1')- 2', 3'-di-O-acyl-D-glycerol, O-α-D-galactosyl-(1→6)-O-β-D-galactosyl-(1→1')-2', 3'-di-O-acyl-D- glycerol and 6-sulfo-O-α-quinovosyl-(1→1')-2', 3'-di-O-acyl-D-glycerol. Main fatty acid components of these glycolipids were identified as palmitic acid and linoleic or linolenic acid. Based on these fatty acid compositions, Spirulina glycolipids were compared with those in higher plants.

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