Structure characterization of a fucose-containing exopolysaccharide produced by Enterobacter cloacae Z0206

► A novel polysaccharide was extracted and purified by column chromatography from Enterobacter cloacae Z0206. ► The EPS was partially hydrolyzed. ► Oligasaccharides were purified by GPC to obtain hexasaccharide. ► The structure of the hexasaccharide was investigated. ► The EPS comprised a heptasaccharide repeating unit.