FIELD: biotechnology.
SUBSTANCE: invention relates to the field of biotechnology. Disclosed is a method of extracting natural antimicrobial peptides (AMP) from leukocyte-erythrocyte-platelet blood mass. Used is a leukocyte-erythrocyte-platelet blood mass pre-exposed to trypsin haemolysis. Separation of AMP is carried out by liquid chromatography on a separating column with three-fold use of Sephadex G-25.
EFFECT: invention enables to optimize the technology of extracting the most complete fraction of natural low-molecular weight peptides containing AMP, to use Sephadex G-25 several times after washing, regeneration and drying, to increase their biological value and to reduce the cost of production thereof.
1 cl, 2 tbl, 3 dwg
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