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Normas DIN – AENOR
DIN ISO 16649-1:2020-07

DIN ISO 16649-1:2020-07

Microbiology of the food chain - Horizontal method for the enumeration of beta-glucuronidase-positive Escherichia coli - Part 1: Colony-count technique at 44 °C using membranes and 5-bromo-4-chloro-3-indolyl beta-D-glucuronide (ISO 16649-1:2018)

Microbiologie de la chaîne alimentaire - Méthode horizontale pour le dénombrement des Escherichia coli bêta-glucuronidase positive - Partie 1: Technique de comptage des colonies à 44 °C au moyen de membranes et de 5-bromo-4-chloro-3-indolyl bêta-D glucuronide (ISO 16649-1:2018)

Mikrobiologie der Lebensmittelkette - Horizontales Verfahren für die Zählung von beta-Glucuronidase-positiven Escherichia coli - Teil 1: Koloniezählverfahren bei 44 °C mit Membranen und 5-Brom-4-Chlor-3-Indol-beta-D-Glucuronid (ISO 16649-1:2018)

Fecha:
2020-07 /Active
Equivalencias internacionales:

ISO 16649-1 (2018-04)

Relación con otras normas DIN:
Resumen:
This document specifies a horizontal method for the enumeration of beta-glucuronidase-positive Escherichia coli. It uses a colony-count technique after resuscitation using membranes and incubation at 44°C on a solid medium containing a chromogenic ingredient for the detection of the enzyme ß-glucuronidase. It is applicable to - products intended for human consumption; - products intendedfor feeding animals; - environmental samples in the area of food production and food handling; - samples from the primary production stage such as animal faeces, dust, and swabs.
Keywords:
Animal feed, Biochemical methods of analysis, Coli bacteria, Colony count techniques, Definitions, Efficiency, Escherichia coli, Food inspection, Food products, Horizontal, Investigations, Membranes, Microbiological analysis, Microbiology, Micro-organisms, Microorganisms, Samples, Sampling methods, Specimen preparation, Testing, Verification
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