Abstract
The lipopolysaccharide (LPS) of Hafnia alvei strain PCM 1195 was obtained by the hot phenol/water method. The O-specific polysaccharide was released by mild acidic hydrolysis and isolated by gel filtration. The structure of the O-specific polysaccharide was investigated by 1H, 13C, and 31P NMR spectroscopy, MALDI-TOF MS, and GC–MS, accompanied by monosaccharide and methylation analysis. It was concluded that the O-specific polysaccharide is composed of a hexasaccharide repeating units interlinked with a phosphate group: {→4-α-d-Glcp-(1→3)-α-l-FucpNAc-(1→3)-[α-d-Glcp-(1→4)]-α-d-GlcpNAc-(1→3)-α-l-FucpNAc-(1→4)-α-d-Glcp-(1→P}n.
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