Method for preparing soluble globin
A globin and hemoglobin technology, applied in the fields of biotechnology and agriculture, can solve problems such as large gaps, backward processes, and environmental pollution
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[0045] The invention discloses a preparation method of globin, comprising the steps of:
[0046] (a) breaking the cell membrane of the blood cells in water to obtain a membrane-ruptured hemoglobin liquid, and centrifuging to remove the cell membrane to obtain a membrane-removed hemoglobin liquid;
[0047] (b) mixing and stirring the removed hemoglobin solution with the inorganic acid to obtain the heme and globin mixed solution I (the inorganic acid is used to adjust the pH value to 1-4);
[0048] (c) mixing and stirring the mixed solution I with activated carbon to obtain the mixed solution II;
[0049] (d) Microfiltration of the mixed solution II at least once (1-5 times, preferably 2-3 times) to obtain the permeate; the molecular weight of the membrane used for microfiltration is 10 ± 20,000 (preferably 10 ± 1 ten thousand) unit;
[0050] (e) Desalting the permeate by nanofiltration to obtain a retentate V; the molecular weight of the membrane used in the nanofiltration i...
Embodiment approach
[0070] As a preferred embodiment of the present invention, a method for preparing globin is disclosed, the method comprising the steps of:
[0071] (1) Mix blood cells with water three times the volume of blood cells, and stir for 1-3 hours to obtain hemoglobin liquid with ruptured membranes; the blood cells are from livestock; the blood cells are fresh and healthy blood cells; the water is pure water ;
[0072] (2) Centrifuge the membrane-ruptured blood cell liquid to remove the cell membrane; the centrifugation adopts a disc centrifuge with a rotating speed of 8000 rpm, and the discharge from the slag outlet at the lower end is the cell membrane;
[0073] (3) Mix the removed hemoglobin solution with inorganic acid, and stir at 30-40°C for 6-12 hours to obtain heme and globin mixed solution I; the inorganic acid can be citric acid, hydrochloric acid, etc., and the amount added depends on the pH depends.
[0074] (4) Mix the mixed solution I with activated carbon, stir at 40...
Embodiment 1
[0083] Embodiment 1, the preparation of soluble globin 1
[0084] (0) Separation of porcine anticoagulated whole blood to obtain plasma and blood cells respectively. Blood cells are used to produce globin. After the anticoagulated whole blood is centrifuged by a tubular centrifuge (12000 rpm), the obtained light liquid is plasma, and the heavy liquid is blood cells, which are used to prepare soluble globin.
[0085] (1) Mix 2 tons of blood cells with 6 tons of pure water, and stir for 2 hours to obtain a membrane-ruptured hemoglobin liquid; the blood cells are fresh and healthy blood cells; the water is pure water;
[0086] (2) Centrifuge the 8 tons of hemoglobin liquid that has ruptured the membrane with a disc centrifuge to remove the cell membrane; the centrifugal speed is 8000 rpm, and the discharge from the slag outlet at the lower end is the cell membrane;
[0087] (3) 15 kg of hydrochloric acid (concentration 38% (w / v)) was mixed with 42 kg of pure water (the final co...
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