Patent · US Expired

Rapid coliform detection system

US5972641A · kind A · utility

10Cited by

22References

32Claims

0Family size

Assignee

Colifast Systems ASA · NO

Inventors

Gro .O slashed.fjord · Hagan, NO
Kari Skjanes · Oslo, NO
Nina Aalen · Oslo, NO
James D. Berg · Oslo, NO

Key dates

Filing date	Aug 28, 1998
Grant date	Oct 26, 1999
Priority date	—
Expiry date	Aug 28, 2018

Classification

Technology area (CPC Y)Emerging Cross-Sectional Technologies
CPC primaryY10S435/968
WIPO fieldBiotechnology
WIPO sectorChemistry

Abstract

A rapid method for detecting the presence or absence of coliform bacteria in a liquid or liquified dairy sample, for example skimmed milk. A growth medium containing a fluorogenic substrate is combined with the sample and is incubated for a brief period of about 7-9 hours after which a single fluorescence value is measured. Total or thermotolerant coliform bacteria are determined to be present in the sample if the single fluorescent measurement exceeds a predetermined threshold value.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.