Polysaccharidic delipidated compounds, process for their preparation and compositions containing them.

摘要

Polysaccharide D 25 compound partially delipidated and its derivatives, characterised in that at least 85 % by weight, preferably 90 %, of the compound is in aqueous solution in monomeric form. Reference is made in particular to the polysaccharide compound of molecular weight 30 kD extracted from membrane proteoglycan of the bacteria Klebsiella pneumoniae. The content of palmitic fatty acids which are bonded to it in esterified form does not excees 0.01 % by weight of the compound and the content of palmitic fatty acids which are associated with it in free form does not exceed 0.1 % by weight of the compound.