Letheen Agar Base, Modified
Starting at $113.54
|Acumedia||BD / Difco||BD / BBL||Oxoid||Merck|
|Letheen Agar Base, Modified (7495)||263110||N/A||N/A||1.10404|
Letheen Agar Base, Modified is used with Tween 80 (Polysorbate 80) for the isolation of microorganisms from cosmetics.
Product Summary and Explanation
In 1948, Weber and Black described the value of a highly nutritional solid medium containing neutralizing agents for quaternary ammonium compounds in sanitizers. The addition of Lecithin and Tween 80(Polysorbate 80) to Tryptone Glucose Extract (TGE) Agar resulted in a medium that effectively neutralizes quaternary ammonium compounds in testing of germicidal activity. Total neutralization of disinfectants is critical. Disinfectant residues can result in a false negative (no-growth) test.
Letheen Agar Base, Modified is based on the formula described in FDA Bacteriological Analytical Manual, and a modification of Letheen Agar Base.2 Letheen Agar Base, Modified is recommended by the FDA for usein the microbiological testing of cosmetics.