Enzymes are proteins that catalyze biochemical reactions. They are specific in nature and only catalyze certain types of reactions. They are not living so do not reproduce. Over time they are broken down or digested as a food source so enzymes only work for a short period of time.
It is better to have bacteria that are living, reproducing and producing the complete complement of enzymes for all the steps necessary to carry out the breakdown of specific materials. Enzymes are also the byproducts of active microbial action enabling them to break down and use the food. They are the catalysts the bacteria use to help absorb food through the cell membranes. The bacteria produce enzymes, much like we do in our own mouths, stomachs and intestines, in the digestive process.
Where enzymes are beneficial is in speeding up what would be the “rate-limiting” step in a sequence of reactions, as we do with the cellulase enzyme in the ML Autumn/Winter Prep and Spring/ Summer Cleaner.