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Skim Milk

Skim Milk is dehydrated skim milk for use in preparing microbiological culture media in a laboratory setting. Skim Milk is not intended for use in the diagnosis of disease or other conditions in humans.

Skim Milk is soluble, spray-dried skim milk. When prepared in a 10% solution, it is equivalent to fresh skim milk. Skim Milk is added to enhance growth of Mycobacterium tuberculosisand Corynebacterium diphtheria in culture media. Skim Milk is used for differentiating organisms based on coagulation and proteolysis of casein in foods and dairy products. Indicators of pH, Litmus and Bromcresol Purple, are used with Skim Milk to determine acid production. Methylene Blue and Resazurin may be used with Skim Milk as oxidation-reduction indicators.