Lecithin Tween-80 Nutrient Agar

Item Code: HCM136
Packaging: 500g
Supplement: 029226 TTC solution
 
Usages:
For the determination of total bacteria in cosmetics.
 
Principle:
Peptone and beef extract powder provides carbon and nitrogen sources, vitamins and growth factors; sodium chloride to maintain osmotic equilibrium; Tween 80 can neutralize phenol, hexachlorophene, formalin, and ethanol can be a combination of both; agar as a medium coagulant.
 
Formulation?per liter?:
Peptone 20g
Beef extract powder 3g
Sodium chloride 5g
Agar 15g
Lecithin 1g
Tween 80   7g
Final pH7.3 ± 0.2
 
How to use?
1. Suspend 51g in 1 L of distilled water, stirring heated to boiling until completely dissolved, distribute into a flask, autoclave at 121? for 15 minutes.
2. Diluted and treated samples.
 
Storage: Keep container tightly closed, store in a cool, dry place, away from bright light. Storage period of 3 years.