Peptone Water 0.1%, buffered, 1 l, 10 x 100 ml

Buffered peptone water 0.1% is recommended by Ph. Eur. for microbiological testing of non-sterile products and as a diluent for homogenisation of samples, effectiveness of culture media and validity of the counting method.

Pancreatic digest of casein provides nitrogen, vitamins, minerals and amino acids essential for growth. Potassium phosphates act as buffer system and sodium chloride supplies essential electrolytes for transport and osmotic balance.