ISO 16649-2

Horizontal method for the enumeration of -glucuronidase-positive Escherichia coli — Part 2: Colony-count technique at 44 °C using 5-bromo-4-chloro-3-indolyl -D-glucuronide

Posted - Author Annemarie
Recommended CRM for process control
  • WDCM 00013
Process control CRM-EC - TBX
Can also be used for performance testing
  • WDCM 00012
Process control CRM-ECO.00012MM - TBX
Can also be used for performance testing
Alternative CRM’s
    CRM-BLES
  • Escherichia coli
  • Staphylococcus aureus
  • Bacillus cereus
  • Lactiplantibacillus plantarum
  • WDCM 00013
  • WDCM 00034
  • Wild strain
  • Wild strain 2
Process control alternatives CRM-BLES - TBX
 -
TBX
  • WDCM 00202

PR ≥ 0,5
Bleu colonies

  • WDCM 00013
Performance testing CRM-EC - TBX

PR ≥ 0,5
Bleu colonies

  • WDCM 00009

Total inhibition (0)

  • WDCM 00006
Performance testing CRM-CFREU - TBX

White to green-beige colonies

For performance testing of TBX, Escherichia coli WDCM 00202 is the strain to be used as a minimum. Escherichia coli WDCM 00202 is not available in the Biosisto collection. If you need this strain, please get in touch with us.

Escherichia coli WDCM 00013 is a strong β-glucuronidase producer, and WDCM 00202 is a weak β-glucuronidase producer.

Lactiplantibacillus plantarum, previously known as Lactobacillus plantarum.

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