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Fig. 3 | Biotechnology for Biofuels

Fig. 3

From: Butanol production in S. cerevisiae via a synthetic ABE pathway is enhanced by specific metabolic engineering and butanol resistance

Fig. 3

Deletion of ADH1 in strains with the butanol production pathway leads to accumulation of side-pathway intermediates. a A Gas-chromatograph from a GC-MS analysis of media from the BR + 5 g (green) and adh1Δ BR + 5 g (red) yeast strains. Standards of butanol, isobutanol and ethanol were also run and are shown for comparison (blue). Specific peaks where a compound was identified by mass spectrometry are labelled. b A schematic diagram of the pathway of glucose fermentation to ethanol connected to the added butanol production pathway with potential side pathways activated in an adh1Δ mutant shown in red

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