Forgot your password?
New User?
Remember me
banner banner

You are here:Home » Culture Media » Media-Microbiological » Dextrose Tryptone Agar (Powder)

Dextrose Tryptone Agar (Powder)


  For pricing information, USA customers sign in.
  Outside USA? Please contact your distributor for pricing.


Detection of thermophilic, aerobic organisms in foods.
Catalog #D3222-20
DescriptionDextrose Tryptone Agar is recommended for the determination of mesophilic and thermophilic bacteria in sweetening agents used in frozen desserts. Bromcresol purple is used as a pH indicator. When isolating thermophilic bacteria use 55°C as a plating temperature.
Storage and StabilityStore powdered media at 4°C. Opened bottles should be capped tightly. Protect it from moisture and light. Prepared media should be kept at 4°C and used within a short period of time.
Light greenish-beige, homogeneous, free flowing powder.
Purple, clear to turbid.
pH (25°C)
Microbiological Analysis
Bacillus coagulans ATCC 7050Growth yellow colonies
Bacillus stearothermophilus ATCC 7953Growth yellow colonies
Important NoteThis product as supplied is intended for research use only, not for use in human, therapeutic or diagnostic applications without the expressed written authorization of United States Biological.

External Links