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Fig. 3 | Biotechnology for Biofuels

Fig. 3

From: Growth-uncoupled isoprenoid synthesis in Rhodobacter sphaeroides

Fig. 3

13C metabolic flux ratio analysis of R. sphaeroides with different initial C/N in the medium. The values are obtained from parallel labelling cultivation experiment. The isoprenoid flux ratios obtained were multiplied for the yield on biomass obtained for some of the strains of Fig. 2. a Nitrogen excess conditions: enough nitrogen is provided to support cell division until depletion of glucose. b Nitrogen limitation: nitrogen will be depleted from the medium before glucose, and cell division is expected to stop and allow PHB accumulation

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