Formaldehyde dehydrogenase exists in most prokaryotes and all eukaryotes. It is an oxidoreductase that
converts formaldehyde. Formaldehyde dehydrogenase can catalyze formaldehyde and NAD+ to produce
NADH. The absorbance at 340 nm will increase. By measuring the change at 340nm, the activity of
formaldehyde dehydrogenase can be calculated.
Reagents and Equipment Required but Not Provided：
Ultraviolet spectrophotometer, desk centrifuge, pipette, 1 mL quartz cuvette, mortar/homogenizer, ice and
distilled water.
