A glucan from the cell wall of the cyanobacterium Spirulina platensis

A polysaccharide was isolated from the cell wall of the cyanobacterium Spirulina platensis. Hydrolysis of the polysaccharide only yielded glucose. Curie-point pyrolysis mass spectrometry of the polysaccharide resulted in a spectrum very similar to that of beta-1,2-glucan. Probably the glucan originates from the fibrillar inner layer of the cell wall.