Preparation:
Because the outer plastic papaya papain, chymopapain also has one of the enzyme, protein, resin, rubber material, fat and other impurities to get the process of separation and cleaning plastic papain from papaya there are effective processes papaya soluble resin to remove impurities. doing the following:
Mix 180g to 100g plastic papaya 150g cetile and clean sand, crushed in a mortar level at room temperature with a solution of cysteine 200-300mL 0.04M (6.3g cysteine hydrochloride dissolved in 1000ml 0.054M NaOH, alkaline pH is used to extract sufficient to 5.7)
When plastic forming suspension is decanted layer floating above. The process is repeated crushing and extracted with 300ml cysteine solution. Wash bowl with cysteine solution to adjust the volume potentiometer to 11.
Translate slurry finally filtered air (can absorb light) on Whatman filter paper No. 1, the filter time can be very long. Filtered water is white milk or green gold, pH close to 5.7.
The remaining steps of enzyme purification process is carried out in cold conditions.
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