Broth medium for detection of DNAse-positive microorganisms
US4241181A · kind A · utility
7Cited by
1References
11Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | May 2, 1979 |
| Grant date | Dec 23, 1980 |
| Priority date | — |
| Expiry date | May 2, 1999 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01N2400/32
- WIPO fieldBiotechnology
- WIPO sectorChemistry
Abstract
A broth medium for the detection of DNAse-positive microorganisms. The medium contains conventional nutrients for growing the microorganisms, a source of essential divalent cations to insure activity of the DNAse and a biological indicator comprising DNA, toluidine blue and lambda carrageenan in sufficient quantity so that the medium turns from blue to a visually distinguishable reddish-pink or reddish-violet color in the presence of DNAse-positive microorganisms.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.