Home > Catalogo generale > Culture media and ISO confirmation tests > Tryptophane Broth – medium for Escherichia coli identification with indole test acc. to ISO9308

Tryptophane Broth – medium for Escherichia coli identification with indole test acc. to ISO9308

  • Brand: Sifin
  • Format: 100 g
  • Code: TN1258
  • Technology: Culture media and ISO confirmation tests
  • Application: Food/Water microbiology
  • Tag/Filter: Escherichia coli and coliforms

Liquid culture medium, used in the analysis of waters. This tryptophan broth enables detection of indole production at 44°C in order to distinguish Escherichia coli bacteria from other coliforms according to ISO9308. Indole can be detected by means of Kovacs reagent (red coloration). Escherichia coli is (oxidase – and indole +) other coliforms are (oxidase – and indole -).


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Tryptophane Broth – medium for Escherichia coli identification with indole test acc. to ISO9308
  • Brand: Sifin
  • Format: 100 g
  • Code: TN1258
  • Technology: Culture media and ISO confirmation tests
  • Application: Food/Water microbiology
  • Tag/Filter: Escherichia coli and coliforms


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