FIELD: technology of production and cleaning of biologically-active substances of natural origin, in particular, mumiyo-like, used in farm feeding of farm animals, fur animals, poultry; may be used in veterinary science, medicine and perfume for preparation of cremes, ointments, etc. SUBSTANCE: natural raw material, containing mumiyo-like component, is ground, extracted by water at temperature 40-50 C, centrifuged, filtered, boiled down; and ultrafiltration and drying is conducted. Ultrafiltration is conducted immediately after filtration. EFFECT: higher efficiency. 1 tbl
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Authors
Dates
1997-12-10—Published
1995-12-27—Filed