Method for preparing fibrinolysis enzyme
A technology of fibrinolysis and peptone, applied in the field of food biology, can solve the problems of high price, shortage of sources, and difficulty in exerting drug effects, and achieve the effect of low cost and strong feasibility
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[0014] Bacillus is fermented under the following conditions,
[0015] Seed culture: seed culture medium (by mass volume percentage) is: peptone 1%, glucose 1%, yeast extract 0.5%, Na 2 HPO 4 12H2O 1.2%, MgSO 4 7H 2 O 0.03%, adjusted to pH 7.2, sterilized at 121°C for 20 minutes, culture conditions: shaker speed 180rpm, culture temperature 37°C, culture time 16-18 hours;
[0016] Liquid fermentation culture: liquid fermentation medium (in terms of mass volume percentage) is: peptone 1.5%, glucose 1.5%, Na 2 HPO 4 12H 2 O 1.5%, NaH 2 PO 4 2H 2 O 0.13%, MgSO 4 7H 2 O 0.1%, defoamer polyoxyethylene oxypropylene triglyceride 0.03%, sterilized at 121°C for 20 minutes, and adjusted to pH 7.2; the seed culture medium was inserted into 15 liters of liquid fermentation medium by volume percentage 5% In a 25-liter fermenter, the culture conditions are: stirring speed 180rpm, control ventilation: 9L / min for 0-12 hours, 10.5L / min for 12-24 hours, 12L / min for 24-36 hours; co...
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