METHOD OF ENUMERATING COLIFORM COLONIES

A method of enumerating gas-producing coliform bacteria present in a cultured dairy product is provided. The method can comprise forming a mixture that comprises a predefined quantity of the dairy product and a predefined volume of a diluent; inoculating a thin film culture device with the mixture t...

Ausführliche Beschreibung

Gespeichert in:
Bibliographische Detailangaben
1. Verfasser: MACH, Patrick A
Format: Patent
Sprache:eng ; fre ; ger
Schlagworte:
Online-Zugang:Volltext bestellen
Tags: Tag hinzufügen
Keine Tags, Fügen Sie den ersten Tag hinzu!
Beschreibung
Zusammenfassung:A method of enumerating gas-producing coliform bacteria present in a cultured dairy product is provided. The method can comprise forming a mixture that comprises a predefined quantity of the dairy product and a predefined volume of a diluent; inoculating a thin film culture device with the mixture to form a hydrogel comprising a nutrient medium for growing coliform bacteria, an effective concentration of lactose, and an effective concentration of MOPS; incubating the inoculated thin film culture device under conditions that facilitate growth of a coliform bacterium; and identifying and counting a gas-producing colony present in the inoculated culture device.