Tryptone Soya Broth w/ polysorbate 20 & 0.5% Lecithin (Twin pack) 500G

This medium is recommended for sanitary examination of surfaces. It is also used for neutralizing quaternary ammonium compounds. The medium contains Tryptone and soya peptone which provides nitrogenous and carbonaceous compounds, long chain amino acids, and other essential nutrients for the growth of the organisms. Sodium chloride maintains osmotic balance. Dextrose is the carbohydrate source. Soya lecithin neutralizes the quaternary ammonium compounds while polysorbate 20 neutralizes phenolic disinfectants, hexachlorophene and formalin.