... . 0~4.5. Appearance Yellowish Powder or Particle Enzyme activity 50,000μ/g to 150,000μ/g Moisture ... than or equal to 0.4mm. Enzyme livability: In six months, the enzyme livability is no less than the ... 90% of enzyme livability. 2. Definition of enzyme activity unit: 1 unit activity equals ... to the amount of enzyme get from 1 g glucoamylase to hydrolyze soluble ...