Escherichia coli (e.coli) test method
US4923804A · kind A · utility
19Cited by
1References
5Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Apr 17, 1987 |
| Grant date | May 8, 1990 |
| Priority date | — |
| Expiry date | Apr 17, 2007 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S435/849
- WIPO fieldBiotechnology
- WIPO sectorChemistry
Abstract
The present invention provides a method which is specific to determining and is capable of enumerating Escherichia coli (E. coli) in a sample water or sewage specimen. The method comprises adding to a cultured specimen a chromogenic reagent which when subjected to in situ E. coli .beta.-glucuronidase activity produces clearly defined vivid colorization of any individual colonies derived from E. coli cells in the test specimen.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.