These experiments were carried out with rather high concentrations of hydrogen peroxide.
When you apply hydrogen peroxide to a blood stain, an enzyme in blood called catalase triggers an oxidizing reaction that breaks down many of the chemical compounds that make blood stains so stubborn.
In our bodies hydrogen peroxide is broken down by the enzyme called catalase. Sorry I don't do liver - I just I don't like it. What happens when the catalase in liver comes into contact with ...