Fig. 2From: A novel biocatalyst, Enterobacter aerogenes LU2, for efficient production of succinic acid using whey permeate as a cost-effective carbon sourceEffects of different fermentation conditions on succinic acid production by strain Enterobacter aerogenes LU2: a temperature; b pH value; c yeast extract; and d inoculum size. The values are the means of three independent samples. Bars represent the standard deviations. Different letters above the posts indicate significant differences (p ≤ 0.05) among the succinic acid concentration (g/L)Back to article page