| Description | 0.3% Beef extract, 0.5% Peptone, 0.5 % Lactose. | Listeria Enrichment Broth | 3.0% Tryptone, 2.0% Yeast Extract, 1.0% MOPS free acid, 2.0% Glucose. | 1.7% Tryptone, 0.3% Soytone, 0.5% Sodium Chloride, 0.25% Dextrose, 0.25% Potassium Phosphate. | 0.3% Yeast Extract, 0.3% Malt Extract, 0.5% Peptone, and 1.0% Glucose. |