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In this section: Laboratory Methods (Food)

BAM Media M161: Tryptone Broth and Tryptone Salt Broths (T1N0, T1N1, T1N3, T1N6, T1N8, T1N10)

Media Index for BAM

January 2001

Trypticase or tryptone	10 g
NaCl	0, 10, 30, 60, 80, or 100 g
Distilled water	1 liter

Dissolve ingredients in distilled water.

For T₁N₀, add no NaCl.
For T₁N₁, use 10 g NaCl [1% (w/v) NaCl].
For T₁N₃, use 30 g NaCl/liter [3% (w/v) NaCl], etc.

Dispense into 16 × 125 mm screw-cap tubes. Tighten caps to maintain correct salt concentration in tube. Autoclave 15 min at 121°C. Final pH, 7.2 ± 0.2.

Original Source: Bacteriological Analytical Manual, 8th Edition, Revision A, 1998.

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