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Fig. 2 | Biotechnology for Biofuels

Fig. 2

From: Enhanced malic acid production from glycerol with high-cell density Ustilago trichophora TZ1 cultivations

Fig. 2

Fermentation of Ustilago trichophora TZ1 with different initial glycerol concentrations. a OD600, b malate production for fermentations in MTM containing 3.2 g L−1 NH4Cl at 30 °C and pH 6.5 with DO kept at 80 %. Colors indicate different initial glycerol concentrations: 300 g L−1 (circles, blue), 250 g L−1 (diamonds, green), 200 g L−1 (squares, red), 150 g L−1 (triangles, black). Additional 160 g glycerol was added when the concentration dropped below 50 g L−1. Error bars indicate deviation from the mean (n = 2)

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