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Fig. 3 | Biotechnology for Biofuels

Fig. 3

From: Linking genotype and phenotype in an economically viable propionic acid biosynthesis process

Fig. 3

Fermentation profile of 2-L bioreactors with P. acidipropionici WGS7. a Batch culture with 130 g/L of sucrose. b Fed-batch culture with a feeding solution of 5× the PAM media and a constant feeding rate of 0.0066 L/h from time 40 h (start) to 64 h (end). For both figures: continuous line indicates model simulation and markers indicate experimental data. Absorbance: blue; propionic acid: light green; sucrose: red; succinic acid: light blue; acetic acid: orange; pyruvate: purple; lactate: green. Experimental absorbance: blue circle; experimental propionic acid: light green lozenge; experimental sucrose: red square; experimental succinic acid: light blue asterisk; experimental acetic acid: orange plus sign; experimental pyruvate: black multiplication sign. oaa: organic acids; experimental lactic acid: light green circle. No simulation data are shown for lactic acid

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