PP1134 – Primary Tryptone Bile X – Glucuronide (TBX) Agar

///PP1134 – Primary Tryptone Bile X – Glucuronide (TBX) Agar

PP1134 – Primary Tryptone Bile X – Glucuronide (TBX) Agar

Tryptone Bile X (TBX) – Glucuronide Agar
Recent developments in culture media have given rise to the use of chromogenic substrates as a means of differentiating bacteria particularly among the coliform group of organisms. This is one such medium and has been developed as a selective medium for the isolation and enumeration of Escherichia coli in food samples. Based on Tryptone Bile Agar it incorporates the chromogenic agent X-glucuronide, which detects glucuronidase activity, the same enzyme as is detected by MUG reagent. Escherichia coli can be differentiated from other coliform organisms by the presence of glucuronidase resulting in the colonies being blue/green while the other coliforms are colourless. For information on the full technical detail as to the functionality of this medium reference should be made to the many publications available.

SKU: PP1134 Category:

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Organisms Ref. No Result
Enterobacter aerogenes NCTC 10003 Cream colonies
Escherichia coli NCTC 12241 Blue / green colonies with black centre
Enterococcus faecalis NCTC 12697 / ATCC 29212 Inhibited