METHOD OF PRODUCING CULTURE MEDIUM FOR INVESTIGATING MICROBIAL CONTAMINATION OF AIR Russian patent published in 2012 - IPC C12N1/20 C12Q1/04 

FIELD: chemistry.

SUBSTANCE: dry enzymatic peptone, glucose, dialysate of baker's yeast and microbiological agar are mixed in given quantities. The obtained mixture is added to 1 litre of distilled water and boiled until complete dissolution of the agar. While hot, the mixture is poured into vials, sterilised in an autoclave and cooled to 47-55°C. The cooled medium is poured into Petri dishes and held until complete setting of the gel. Weighed zinc nanopowder in a physiological solution in amount of 0.005 mcg of zinc nanopowder per 0.1 ml of the physiological solution per Petri dish is deposited on the solid surface of the gel in aseptic conditions.

EFFECT: invention increases accuracy of results of investigating microbial contamination of air.

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