Fig. 5. Extracted ion chromatograms at m/z 187.2 from GC-MS analyses of the Zmn14-catalyzed reduction of octanal with NADH. The top chromatogram is for the authentic standard of BSA-derivatized octanol. The middle chromatogram is for the BSA-derivatized product of the enzymatic reaction. The bottom chromatogram corresponds to the BSA-derivatized product of the negative control using boiled enzyme.