Culture Media Assure Adequate Disinfection

Media specialist Lab M provides an extensive range of neutralising media for use in both monitoring the effectiveness of a CIP sanitisation programme, and determining the bactericidal activity of disinfectants.

Letheen media are formulated to neutralise all commonly used antiseptics and disinfectants quaternary ammonium compounds, phenols, hexachlorophene, formalin and ethanol. Culturing from routine hygiene swabs taken from surfaces and processing or packaging machinery offers a straightforward assessment of the effectiveness of the sanitisation and prevents the risk of disinfectant carry-over from the hygiene swab affecting the results.

Lab M Letheen Agar and Broth (LAB185/LAB184) are supplied in dehydrated form. Reconstitution and preparation is uncomplicated, resulting in a straw coloured medium with a clear appearance that aids visual inspection.

In addition, for manufacturers preparing the antiseptics and disinfectants used in the food industry, Lab M's Dey & Engley Neutralising Agar, Broth and Broth Base (LAB188/LAB187/LAB186) provides a comprehensive solution for the determination of bactericidal activity and setting target concentrations for these compounds. By completely neutralising a broad spectrum of antimicrobial chemicals, Lab M's media avoid false negatives arising from disinfectant carry-over. Consequently, Lab M media delivers more reliable results than traditional alternatives such as thiosulphate-based Ringer's media