| 摘要 |
Process for the preparation of the polysaccharides K4 and K5 comprising the fermentation in a submerged culture of a strain of <i>Escherichia coli</i> which produces the polysaccharide K4 or of a strain of <i>Escherichia coli</i> which produces the polysaccharide K5, in which the culture medium for said fermentation is composed of defatted soya flour, mineral salts and glucose, or of the dialysed portion of yeast autolysate, mineral salts and glucose. |
