Figure 5From: The dynamic regulation of nitrogen and phosphorus in the early phase of fermentation improves the erythromycin production by recombinant Saccharopolyspora erythraea strainEffects of potassium dihydrogen phosphate on the fermentation process of condensed soy protein. Solid symbol, control; open symbol, feed KH2PO4. Black and red squares indicate soluble phosphate; black and red circles indicate amino nitrogen; black and red stars indicate PMV; and black and red triangles indicates erythromycin.Back to article page