Triple Sugar Iron Agar (TSI) Medium (Dehydrated)

Differentiate gram-negative enteric bacilli such as Enterobacteriaceae on the basis of dextrose, lactose and sucrose fermentation and hydrogen sulfide production using Thermo Scientific™ Triple Sugar Iron Agar (TSI) (Dehydrated).

The sucrose content in this medium permits the recognition and exclusion of sucrose-fermenting species. These organisms may ferment lactose slowly, or not at all, during the incubation period, but they attack sucrose readily. Some Proteus and other species may give similar reactions to salmonellae and shigellae, and it is necessary to distinguish them by their ability to hydrolyse urea. Triple Sugar Iron Agar should be used in parallel with Urea Broth or Urea Agar.

TSI Agar is available as dehydrated culture medium or in ready-to-use prepared media tubes and in formats that meet international industrial guidelines for microbiological testing.

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