FIG. 1.
Mass spectra of the silylated putative metabolites H29-pentadecanoic acid from consortium cultures incubated with unlabeled hexadecane (A), H25-tridecanoic acid from consortium cultures incubated H34-hexadecane (B), d27-pentadecanoic acid from cultures incubated with d34-hexadecane (C), d24- and d25-tridecanoic acids from cultures incubated with d34-hexadecane (D), [1-13C]pentadecanoic acid from cultures incubated with H34-hexadecane and NaH13CO3 (E). Chemical structures represented by the mass spectra are shown in insets. (*) indicates 13C-labeled carbon atoms. OTMS, trimethylsilyl ester.