Magnesium medium used for accumulation of salmonellas, due to their ability to grow in the presence of magnesium chloride in relatively high concentrations. During cultivation (37 ° C, 24 hours) number of viable cells opponent microflora sharply decreases and increases respectively of Salmonella. Inhibitors of the medium are magnesium chloride and malachite green.
Purpose: Selective environment for the accumulation of salmonella
Principle of action: High magnesium concentration inhibits the development of most bacteria other than salmonella, through which selectivity is achieved.
Magnesium chloride - 20 g / l
The peptone is enzymatic - 7 g / l
Sodium chloride - 7 g / l
Potassium dihydrogenphosphate - 2 g / l
Malachite green - 0.07 g / l
Instructions for use:
1. Dissolve 36 g medium while heating in 1 liter of purified water.
2. Boil 2-3 minutes, until the components are completely dissolved.
3. Autoclaving for 20 min at 112 ° C
PH level: 5.2-0.2 ° at 25 ° C
Delivery time: 5 d.
Magnesium medium (Rappaporta-Vassiliadis), 250 gr
- Brands ООО "Фармактив" Украина
- Product Code: 250 гр
- Availability: 2-3 Days