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No isoamyl acetate production from cellular metabolites by banana biosynthetic system

We designed and constructed a system for banana odor production from intracellular metabolites (BBa_J45900). We analyzed cultures with the banana odor biosynthetic system for isoamyl acetate production but did not measure detectable levels of isoamyl acetate by gas chromatography (A). The banana odor generator (BBa_J45200) in the absence of exogenous isoamyl acetate does not produce measurable quantities of isoamyl acetate (B). For reference, we analyzed a sample with 100 ppm pure isoamyl acetate as well (E). Most E. coli strains produce indole. Octyl acetate was used as an internal standard for all samples containing isoamyl acetate.