Sabouraud Dextrose Agar with Lecithin, Tween 80, Histidine & Sodium Thiosulphate (VHP) (USP) – Irradiated
This is a selective medium for the isolation of yeasts and fungi and is particularly suitable for use in sterility testing. The low pH (5.6) of the medium is inhibitory to most bacteria and many diagnostic features such as spores and pigmentation are well developed on this medium. The formulation of this medium conforms to the requirements of the United States Pharmacopoeia. Lecithin, Polysorbate 80 (Tween 80), Histidine and Sodium Thiosulphate are added to inactivate surface disinfectants (Lecithin neutralises quaternary ammonium compounds, Tween 80 and Histidine neutralises phenols, formalin, hexachlorophene and in combination with the Lecithin ethanol and Sodium Thiosulphate inactivate mercurials). This product is wrapped in barrier film to allow for use in Vaporised Hydrogen peroxide sterilisation systems.
NB: Final sterilisation of this medium is by Gamma irradiation and it is triple wrapped. Dose Range: Min: 8.0kGy Max: 15.0kGy