FIELD: food industry.
SUBSTANCE: nutritive medium contains a dry concentrate of salmon fish milt decoction, microbiological agar, sodium chloride, glucose, yeast extract, activated carbon (powder), distilled water at preset quantities and 30% egg yolk emulsion introduced after the nutritive medium sterilisation in an amount of 50 ml/l of the sterile medium.
EFFECT: invention allows to reduce the period of identification of listeria lecithinase activity.
3 dwg, 2 ex
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