Phytase is made from the strain of Pichia Paseoris through cultivation and extraction technique. It can degrade phytic acid into inositol or phosphoinositide andphosphoric acid. The products can eliminate the simple stomach animal's anti-nutrient action due to non-decompose of phytic acid so as to improve the utility ofnutrition. The products can also reduce the environmental pollution caused byusing of phosphorus.Specifications/ physical and chemical properties:1) Appearance: Powder, Granular, or Micro-Granular2) pH: 2-7, optimum 5.0-5.53) Activity temperature: 30-80oC, favorable 40-45oC4) Enzymatic activity: 200,000u/g5) Shelf life:6 months under 25oC6) Storage: Should be stored in ashady and cool place.