I am assuming that you mean "plant" enzymes instead of plany enzymes.
DIGESTIVE ENZYMES are made by our body's organs. They are secreted by the Salivary Glands, Stomach, Pancreas, and the Small Intestine. Obviously, their function to digest our food so it can be absorbed through the walls of the small intestine into the blood stream. Mainly, its only sources is from inside our body or from the food we eat. Cooking our food at temperatures over 118 degrees, microwaving and processing kills all the enzymes in that food. We can eat all the healthy food and take in all the vitamins and supplements we want but unless the enzymes are there they are not very effective in maintaining a healthy body.
PLANT BASED ENZYMES are the most effective source of supplemental digestive enzymes.
Plant enzymes versus animal or fruit derived enzymes like Papain, Pancreatin, Oxbile! First of all, plant enzymes are active in a broad pH range of 2 to 12 and temperature ranges of 75 to 122°F, well within the human body's normal temperature and pH ranges. Animal derived enzymes do not activate until they reach the higher pH of the small intestinal tract so they are not going to be very effective at aiding the body in pre-digestion or be active in the upper alkaline portion of the stomach. Papain's optimum temperature of activity is between 140° and 158" F, way too high above the body's temperature to be utilized in aiding in digestion.