Streptococcus Thermophilus Isolation Agar (DM630) is recommended for determining the ratio of Streptococcus thermophilus and Lactobacillus bulgaricus in yoghurt.
| Ingredients | Gms / Liter |
| Casein enzymic hydrolysate | 10.00 |
| Yeast extract | 5.00 |
| Sucrose | 10.00 |
| Dipotassium phosphate | 2.00 |
| Agar | 15.00 |
| Final pH: 6.8 ± 0.2 at 25°C | |
| Formula may be adjusted and/or supplemented as required to meet performance specifications | |
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