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Modified Letheen Broth For Dilution And Enrichment in Microbiological Testing For Cosmetics, Final pH7.2 ± 0.2, 500g/bottle

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Modified Letheen Broth

Usages:
For dilution and enrichment in microbiological testing for cosmetics.
 
Principle:
Peptone, tryptone, beef extract powder and yeast extract powder provides carbon and nitrogen sources, vitamins and growth factors; sodium chloride maintains osmotic equilibrium.
 
Formulation（per liter）:
Peptone 20g
Tryptone 5g
Beef extract powder 5g
Yeast extract powder 2g
Sodium chloride 5g
Lecithin 0.7g
Tween 80  5g
Sodium metabisulfite 0.1g
Final pH7.2 ± 0.2
 
How to use：
1.Suspend 42.8g in 1 L of distilled water , stirring heated to boiling until completely dissolved, distribute into 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.
 
Specifications: 500g/bottle