Loeffler Medium Base (DM733) is recommended for cultivation of Corynebacterium diphtheriae from clinical specimens and for detection of chromogenesis, proteolysis and production of ascospores in pure cultures.
| Ingredients | Gms / Liter |
| Peptone, special | 2.50 |
| Beef extract | 2.50 |
| Sodium chloride | 1.25 |
| Dextrose | 2.50 |
| Final pH: 7.3 ± 0.2 at 25°C | |
| Formula may be adjusted and/or supplemented as required to meet performance specifications | |
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