title: N-Acetylneuraminic acid: a constituent of the lipopolysaccharide of Salmonella toucra.
abstract: The composition of lipopolysaccharide and polysaccharides isolated after acidic or alkaline degradation of lipopolysaccharide of Salmonella toucra has been investigated. The following analytical methods were used in this study: gel-filtration and ion-exchange techniques, paper and gas-liquid chromatography as well as spectrophotometric analysis. The products of the lipopolysaccharide degradation were fractionated on the Sephadex G-25 and Sephadex G-50 columns. Lipopolysaccharide and products of its degradation besides glucosamine, galactose, glucose, heptose(s) and 3-deoxy-D-manno-octulosonate described as 'basal' sugars, also contained N-acetylneuraminic acid and an unidentified amino sugar.
mesh_terms: D002241:Carbohydrates / Q000032:analysis; D002849:Chromatography, Gas; D008070:Lipopolysaccharides / Q000302:isolation & purification; D009438:Neuraminic Acids / Q000032:analysis*; D011135:Polysaccharides, Bacterial / Q000302:isolation & purification; D012475:Salmonella / Q000276:immunology*
chemical_list: D002241:Carbohydrates; D008070:Lipopolysaccharides; D009438:Neuraminic Acids; D011135:Polysaccharides, Bacterial