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. 2004 Sep;70(9):5081–5088. doi: 10.1128/AEM.70.9.5081-5088.2004

FIG. 4.

FIG. 4.

Influence of an elevated concentration of the separate components of the complex nutrient source of standard MRS (•), 4× bacteriological peptone (▪), 4× Lab Lemco (▴), or 4× yeast extract (□) on the production of biomass (in grams of CDM per liter) (a) and the production of lactic acid (in grams of lactic acid per liter) (b) as a function of time. The symbols represent experimental values; lines are drawn according to the model.