Home > Catalogo generale > Culture media and ISO confirmation tests > Kovacs Reagent – Test to detect the production of indole in tryptophanase positive bacteria acc. to ISO9308

Kovacs Reagent – Test to detect the production of indole in tryptophanase positive bacteria acc. to ISO9308

  • Brand: Bio-Rad
  • Format: 2 x 15 ml
  • Code: BR3555313
  • Technology: Culture media and ISO confirmation tests
  • Application: Food/Water microbiology
  • Tag/Filter: Escherichia coli and coliforms

Kovacs reagent is intended for the demonstration of indole production by bacteria possessing a tryptophanase (Gram negative bacteria, especially Enterobacteriaceae). Bacteria possessing a tryptophanase are able to breakdown tryptophan into indole. When reacting with this indole, Kovacs reagent turns a cherry red colour. The reagent must be added to a bacterial culture started from a colony isolate grown in Peptone Water indole free or Tryptophan broth.


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Kovacs Reagent – Test to detect the production of indole in tryptophanase positive bacteria acc. to ISO9308
  • Brand: Bio-Rad
  • Format: 2 x 15 ml
  • Code: BR3555313
  • Technology: Culture media and ISO confirmation tests
  • Application: Food/Water microbiology
  • Tag/Filter: Escherichia coli and coliforms


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