| abstract |
A process for converting lipid-containing bacterial capsular polysaccharide, such as lipo-polyribosyl ribitol phosphate, lipo-PRP, into lipid-free, endotoxin-free polysaccharide, such as polyribosyl ribitol phosphate, PRP, by solubilizing polysaccharide-containing powder derived from culture media of bacteria, such as Haemophilus influenzae type b, cleaving covalently bound fatty acids from the polysaccharide, and removing the lipids, and endotoxin. <IMAGE> |