Yeast Nitrogen Base is recommended for classification of Yeasts on the basis of their ability to assimilate carbon compounds.
Composition*
| Ingredients | g/L |
| Ammonium Sulphate | 5.0 |
| L-Histidine Hydrochloride | 0.01 |
| DL-Methionine | 0.02 |
| DL-Tryptophan | 0.02 |
| Biotin | 0.000002 |
| Calcium Pantothenate | 0.0004 |
| Folic Acid | 0.000002 |
| Inositol | 0.002 |
| Niacin | 0.0004 |
| p-Amino Benzoic Acid (PABA) | 0.0002 |
| Pyridoxine Hydrochloride | 0.0004 |
| Riboflavin (Vitamin B2) | 0.0002 |
| Thiamine Hydrochloride | 0.0004 |
| Boric Acid | 0.0005 |
| Copper Sulphate | 0.00004 |
| Potassium Iodide | 0.0001 |
| Ferric Chloride | 0.0002 |
| Manganese Sulphate | 0.0004 |
| Sodium Molybdate | 0.0002 |
| Zinc Sulphate | 0.0004 |
| Monopotassium Phosphate | 1.0 |
| Magnesium Sulphate | 0.5 |
| Sodium Chloride | 0.1 |
| Calcium Chloride | 0.1 |
*Adjusted to suit performance parameters.
Final pH (at 25°C): 5.4 ± 0.2
g/L: Suspend 6.75 g of the powder in 100 mL purified / distilled water.
