| Product Code | Description | Product Size | Quantity |
| CM0191B | LYSINE MEDIUM 500g | – | 500g |
Lysine Medium 500g
Brand:
Thermo ScientificTM OxoidTM
Isolate and enumerate wild yeasts encountered in brewing while suppressing pitching yeasts with Thermo Scientific™ Oxoid™ Lysine Medium (Dehydrated). This complex, synthetic medium is based on the original formula of Morris & Eddy which utilizes the susceptibility of pitching yeasts to lysine to differentiate it from the wild yeast.
Lysine Medium, Oxoid Composition
| Typical Formula* | gm/litre |
| Glucose | 44.5 |
| Potassium dihydrogen phosphate | 1.78 |
| Magnesium sulphate | 0.89 |
| Calcium chloride fused | 0.178 |
| Sodium chloride | 0.089 |
| Adenine | 0.00178 |
| DL-methionine | 0.000891 |
| L-histidine | 0.000891 |
| DL-tryptophane | 0.000891 |
| Boric acid | 0.0000089 |
| Zinc sulphate | 0.0000356 |
| Ammonium molybdate | 0.0000178 |
| Manganese sulphate | 0.0000356 |
| Ferrous sulphate | 0.0002225 |
| Lysine | 1.0 |
| Inositol | 0.02 |
| Calcium pantothenate | 0.002 |
| Aneurine | 0.0004 |
| Pyridoxine | 0.0004 |
| p-aminobenzoic acid | 0.0002 |
| Nicotinic acid | 0.0004 |
| Riboflavin | 0.0002 |
| Biotin | 0.000002 |
| Folic acid | 0.000001 |
| Agar | 17.8 |
| pH (see directions) |
Lysine Medium, Oxoid Preparation:
Suspend 6.6g in 100ml distilled water containing 1.0ml Potassium lactate SR0037. Bring to the boil to dissolve completely. Agitate frequently to prevent superheating. Cool to 50°C and add 0.1ml of lactic acid 10% SR0021 to adjust to pH 4.8 ± 0.2. Dispense into Petri dishes and remove surface moisture by drying at 37°C.
Storage conditions and Shelf life
Store the dehydrated medium at 10-30°C and use before the expiry date on the label.
Store the prepared medium at 2-8°C.
100% Authentic Guarantee Description
Additional information
| Dimensions | 10 cm |
|---|---|
| Brand | Oxoid |
| Estimated Delivery Time | 1-2 weeks |
