Fig. 5From: Metabolic engineering of Escherichia coli for the utilization of ethanolIdentification of mevalonic acid lactones by GC–MS. Total ion chromatograms of mevalonic acid lactones produced from ethanol (a) and ethanol-D6 (b) (the peaks of mevalonic acid lactones were indicated with arrows); mass spectra of mevalonic acid lactones produced from ethanol (c) and ethanol-D6 (d)Back to article page