Hi Guys
Enzymes are the most powerful cleaning agents going, working at very low concentrations.
There are however H&S issues and I strongly recommend they are only used in localised areas, for specialist stain removal such as above.
It is very important to thoroughly rinse out.
Different enzymes will break down proteins, (proteases), fats, (lipolases) and (carbohydrates), amylases.
Cheers
Doug