Description

Tryptophan Broth is used in water analysis for the identification of Escherichia coli by indole production. It is recommended by UNI EN ISO 6579:2008 and ISTISAN 96/35 for salmonella detection in food specimens and by UNI EN ISO 9308-1:2002 e R.ISTISAN 07/5 (Method ISS A 006 C) for Choliforms isolation and enumeration in water.

The indolo production  test is important in Enterobacteriaceae differentiation and it allows the differentiation of Escherichia coli (indole +) to Klebsiella-Enterobacter-Hafnia-Serratia (indole -).

Packing:

• Cod. 70.410 Pack. 500 g
• Cod. 71.410 Pack. 100 g
• Cod. 18.0119 Pack. 10 test-tubes 9 ml
• Cod. 22.047 Pack. 6 bottles 100 ml

Bibliography:

• American Public Health Association (1980) Standard Methods for the Examination of Water and Wastewater. 15th EdN. APHA Inc. Washington. DC.
• UNI EN ISO 9308-1 :2002 Qualità dell’acqua _ Ricerca ed enumerazione di Escherichia coli e batteri coliformi _ Metodo di filtrazione su membrana
• Rapporti ISTISAN 07/5 “Metodi analitici di riferimento per le acque destinate al consumo umano ai sensi del DL.vo 31/2001. Metodi microbiologici” (Metodo ISS A 006 C pag 58)
• Rapporti ISTISAN 96/35 Prima parte_ Met. 10 – 11-12-13 Ricerca di Salmonella spp negli alimenti.
• ISO 6579:2002/Amd 1:2007 Annex D: Detection of Salmonella spp. in animal faeces and in environmental samples from the primary production stage 7
• UNI EN ISO 6579:2008 Microbiologia di alimenti e mangimi per animali – Metodo orizzontale per la ricerca di Salmonelle