Abstract
A WATER-SOLUBLE polysaccharide containing galactose and glucose residues has been isolated from perennial rye grass pasture. Repeated fractional precipitation from aqueous solution by alcohol and acid-alcohol followed by prolonged dialysis did not effect appreciable reduction of the high ash content (more than 30 per cent) of the polysaccharide. Since the ash consisted of calcium sulphate, it is suggested that the polysaccharide may occur as the calcium salt of the sulphuric ester of a polygalactose with one or more glucose residues incorporated in the carbohydrate moiety.
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References
Jones, W. G. M., and Peat, S., J. Chem. Soc., 225 (1942).
Bird, G. M., and Haas, P., Biochem. J., 25, 403 (1931).
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MCILROY, R. A New Water-Soluble Polysaccharide from Perennial Rye Grass Pasture. Nature 152, 724 (1943). https://doi.org/10.1038/152724a0
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DOI: https://doi.org/10.1038/152724a0
