Norm

NEN-EN-ISO 16649:2013 Ontw. en

Microbiologie van voedingsmiddelen en diervoeders - Horizontale methode voor de telling van het aantal beta-glucuronidase-positieve Escherichia coli - Deel 3: Bepaling van het meest waarschijnlijke aantal met gebruik van 5-bromo-4-chloro-3-indolyl-beta-D-glucuronide

  • Deze norm is ingetrokken sinds 10-06-2015

25,62

Over deze norm

Status Ingetrokken
Aantal pagina's 16
Commissie Microbiologie van de voedselketen
Gepubliceerd op 01-05-2013
Taal Engels
This International Standard specifies a horizontal method for the detection and enumeration of ?-glucuronidase positive Escherichia coli, by means of the liquid-medium culture technique and calculation of the most probable number (MPN) after incubation at 37 °C, then at 44 °C. This International Standard is applicable to: - products intended for human consumption and the feeding of animals; and - environmental samples in the area of food production and food handling The method is suitable for the enumeration of cells of Escherichia coli that may have been subjected to stress arising from dehydration, freezing, exposure to a saline (such as marine) environment or damage by disinfectants such as chlorine-containing products. A limitation of the applicability of this International Standard is imposed by the susceptibility of the method to a large degree of variability. The method should be applied and the results interpreted in the light of the information given in 11. This method has not been fully evaluated for all matrices, e.g. for milk and milk products. ISO 7251 should be used for milk and milk products.

Details

ICS-code 07.100.30
Nederlandse titel Microbiologie van voedingsmiddelen en diervoeders - Horizontale methode voor de telling van het aantal beta-glucuronidase-positieve Escherichia coli - Deel 3: Bepaling van het meest waarschijnlijke aantal met gebruik van 5-bromo-4-chloro-3-indolyl-beta-D-glucuronide
Engelse titel Microbiology of food and animal feeding stuffs - Horizontal method for the enumeration of beta-glucuronidase-positive Escherichia coli - Part 3: Detection and most probable number technique using 5-bromo-4-chloro-3-indolyl-beta-D-glucuronide
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