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. 1999 Sep;65(9):4211–4215. doi: 10.1128/aem.65.9.4211-4215.1999

FIG. 4.

FIG. 4

l-(+)-Lactic acid production from the homolactic PMI/C1(pEPL2) transformed strain in a bioreactor. The fermentation pH was controlled at 4.5 throughout the fermentation. Production of lactic acid (LA) (●, grams per liter), residual glucose (Glu) (▵, grams per liter), and optical density of the biomass at 660 nm (OD660) (○) are shown.