Letheen Agar (Modified) intended for use in the isolation of microorganisms from cosmetics. Total neutralisation of disinfectants is critical as disinfectant residues can result in a false negative result. Sodium Bisulfite, Lecithin and Polysorbate 80 (Tween 80) inactivate quaternary ammonium compounds , Tween 80 neutralises phenols, formalin, hexachlorophene and in combination with the Lecithin ethanol.
PP4284 – Tween Modified Letheen Agar
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Product Description
| Organisms | Ref. No | Result |
| Escherichia coli | ATCC 8739 | Opaque/grey colonies |
| Pseudomonas aeruginosa | ATCC 9027 | Cream Colonies |
| Staphylococcus aureus (MRSA) | ATCC 6538 | White colonies |
