Abstract
Among the bacteria isolated from the polluted water and the viscid sludges in the factories manufacturing sweet potato starch, the eight strains were capable of producing a new series of viscous acidic polysaccharides in high yields from starchy materials.
These strains, C-1_??_C-8, being considered to belong to the same species, the strain C-8 was designated to a representative strain. The strains were the coryneform bacteria showing snapping cell division, and having lysine as a principal amino acid in cell wall and a high GC content in DNA.
The chemical compositions of the polysaccharides produced were estimated to be Man:Gal:Glc:GlcUA:pyruvic acid=1:1:1_??_1.7:2.1_??_3.7:1_??_1.7, differing in ratios of glucose and especially of acidic moieties among the strains.
