Fluid Casein Digest Soya Lecithin- Polysorbate 20 Medium (Twin Pack) is supplied by Micromaster. It consists of two packs, part A and part B. Part A is available in the form of a cream to yellow homogeneous free flowing powder whereas part B is available in the form of a colourless to yellow viscous liquid. It is advisable to store this product below 30C in tightly closed container.

Quantity provided: 500 g/pack

Fluid Casein Digest Soy Lecithin-Polysorbate 20 Medium is recommended for sanitary examination of surfaces in compliance with USP. This medium is also recommended by NASA for the microbiological sampling of environmental surfaces sanitized with quaternary ammonium compounds. The importance of a highly nutritional medium containing neutralizing agents for neutralizing quaternary ammonium compounds has been described by Weber and Black. The medium contains pancreatic digest of casein which provide the necessary nutrients for the growth of the organisms. Soy lecithin neutralizes the quaternary ammonium compounds while polysorbate 20 neutralizes phenolic disinfectants, hexachlorophene and formalin.