Abstract
Lipopolysaccharides (LPS) were isolated by phenol-water extraction from 34 strains of Veillonella, and examined by paper chromatography and colorimetric methods for the presence of neutral sugars, amino sugars and 2-keto-3-deoxy-octonate (KDO). Several preparations were also examined for neutral sugars by GLC. The LPS had in common glucosamine, galactosamine, L-glycero-D-manno-heptose, glucose and KDO. Most LPS contained galactose, and a few rhamnose. D-glycero-D-manno-heptose was found in LPS from 1 of the strains. Based on the sugar composition of the LPS, the Veillonella strains could be classified into 4 chemotypes.

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