抄録
The preparation of crystalline rennin is summerized in the scheme mentioned above. Under this, conditions rennin crystallizes in the form of needles. The melting point of the crystals is 225-227°C (decompose). The cristals are easily dissolved in water, diluted hydrochloric acid or dilute salt solutions into a watery, clear, colorless and viscous solution. The milkclotting power of crystalline rennin is 1.0×107 units, buthas little proteolytic power.
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