Fig 3.

Consumption of ammonium and amino acids by strain EC1118 during fermentation in SM200. Residual concentrations of Lys, Asp, Thr, Glu, Leu, His, Met, Ile, Ser, Gln, and Phe are shown by solid lines and the symbols indicated in the key. The residual concentrations of NH₄⁺, Val, Arg, Ala, Trp, Tyr, and Gly are shown by dashed lines (and the symbols indicated in the key). Residual concentrations are expressed as percentages of the initial concentrations. Results of one representative experiment of two are shown.