Microbiology

Dextrose Tryptone Broth

Designed for detection and enumeration of mesophilic and thermophilic aerobic organisms in food.

RangeMicrobiology
CompositionFormula per liter of medium: Tryptone 10.00 gm; Dextrose 5.000 gm; Bromocresol purple 0.040 gm. Final pH at 6.7 + 0.2 at 25 °C
PreparationSuspend 30.04 grams in 1000 ml purified / distilled water. Adjust pH to 6.7 + 0.2 at 25 °C. Heat to boiling the medium completely. Sterilize by autoclaving at 15 lbs pressure (121°C) for 15 minutes. Cool to 45-50°C. Mix well and pour into sterile Petri plates.
StorageBioScien Dextrose Tryptone broth should be stored between 10-30°C in a firmly closed container and the prepared medium at 2-8°C. Use before expiry date on the label. On opening, product should be properly stored dry, after tightly capping the bottle in order to avoid lump development due to the hygroscopic nature of the product. Improper storage of the product may lead to lump formation. Store in a dry ventilated area protected from extremes of temperature and sources of ignition. Seal the container tightly after use. Product performance is best if used within stated expiry period.
AppearanceThe color of BioScien Dextrose tryptone broth is Light yellow to greenish yellow homogeneous free flowing powder. Purple coloured, clear solution in tubes. If there are any physical changes for powder or signs of deterioration (shrinking, cracking, or discoloration), and contaminations for hydrated media, discard the medium.
SpecimenFood and dairy samples.
Pack sizes3 options

Ordering information

Cat. No. (REF) Pack size Quote
BS.1/DTA01.100.0100 100 Gram Quote
BS.1/DTA01.250.0250 250 Gram Quote
BS.1/DTA01.500.0500 500 Gram Quote
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