... and powder 3.For Animal Feed,Alcohol,Ethanol Protease is an Acid Protease enzyme derived from Aspergillus niger through submerged fermentation ... 50,000u/g; 100,000u/gDefinition of unitOne unit of Protease equals to 1 g of enzyme, which hydrolyzes casein to ... increase feed utilization, reduce production cost. Dosage recommendation20-30g of Protease (50,000u/mL) per ton of feedstuff or related material ...