Digestive Enzyme Potency

Does anybody have any clue as to the potency of digestive enzymes for all macronutrients?

For instance, if a product contains 15,000 HUT Protease, what does this actually mean in terms of protein digestion? How much protein would this level of potency actually digest?

I have Googled this back and forth and found nothing specific.

Below is a list of some digestive enzymes and the measuring units they use to ascertain the potency of each.

Alpha-Galactosidase-GALU (Galactosidase units)
Amylase-DU (Dextrinizing Units)
Catalase - Baker Units
Cellulase - CU (Cellulase unit)
Glucoamylase - AG (Amyloglucosidase Units)
Hemicellulase - HCU (Hemicellulase Units)
Invertase - INVU (Invertase Activity unit)
Lactase - LacU (Lactase unit)
Lipase - FCCFIP (Federation Internationale Pharmceutique)
Maltase - DP (Degrees of Diastatic Power)
Pectinase - AJDU (Apple Juice Depectinizing Units)
Phytase - PU Phytase Units
Protease-HUT (Hemoglobin Unit Tyrosine base)
Xylanase - XU (Xylanase Units

Any links or info would be much appreciated