Tryptone Glucose Extract (TGE) Agar

Item No.  NCM0158A

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Minimum quantity required: 1
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Tryptone Glucose Extract (TGE) Agar is used for the cultivation and enumeration of microorganisms in dairy and bottled water products. Tryptone Glucose Extract (TGE) Agar is not intended for use in the diagnosis of disease or other conditions in humans.

In the 1930’s, Bower and Hucker developed a medium for detecting bacteria in milk and other dairy products. Prickett used a glucose agar containing tryptone to study thermophilic bacteria in milk. This medium is known as Yeast Dextrose Agar. In 1948, the American Public Health Association (APHA) adopted Tryptone Glucose Extract Agar for use in testing milk and dairy products. Currently, APHA specifies Tryptone Glucose Extract Agar for the heterotrophic plate count procedure in testing bottled water. Tryptone Glucose Extract Agar is also known as Yeast Dextrose Agar.

Analyte TVC
Brand NEOGEN® Culture Media
Formula Liter
Beef Extract 3.0 g/L
Enzymatic Digest of Casein 5.0 g/L
Dextrose 1.0 g/L
Agar 15.0 g/L
Grams per Litre 24.00
Litres per 500g 21.00
Mass 500 g
Package Dimensions 4.60 IN x 2.90 IN x 8.60 IN
Package Weight 1.35 LB
Plates per 500g 1,140.00
  1. Suspend 24 g of the medium in one liter of purified water.
  2. Heat with frequent agitation and boil for one minute to completely dissolve the medium.
  3. Autoclave at 121ºC for 15 minutes.
  4. Cool to 45-50ºC.
Previous Item Number Product was previously known as Acumedia Product: 7242 Tryptone Glucose Extract (TGE) Agar; and LabM Product: LAB063 Tryptone Glucose Extract (TGE) Agar



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