HiMedia M2059, officially sold as Tryptone Soya Broth w/ polysorbate 20 & 0.5% Lecithin (Twin Pack), is a specialized liquid growth medium used for the sanitary examination of environmental surfaces.
This medium is recommended for sanitary examination of surfaces. Weber and Black had described the importance of a highly nutritional medium containing neutralizing agents for neutralizing quaternary ammonium compounds (4,5). It is further recommended for microbiological examination of food products, nutritional and dietary supplements..
Composition
Ingredients Gms / Litre
Tryptone 17.000
Soya peptone 3.000
Sodium chloride 5.000
Dextrose (Glucose) 2.500
Dipotassium hydrogen phosphate 2.500
Soya lecithin 5.000
Part B
Polysorbate 20 40.000
Final pH (at 25°C): 7.3±0.2
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