Deactivation of microorganisms by an oscillating magnetic field
US4524079A · kind A · utility
88Cited by
10References
8Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Nov 10, 1983 |
| Grant date | Jun 18, 1985 |
| Priority date | — |
| Expiry date | Nov 10, 2003 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC02F2303/04
- WIPO fieldFood chemistry
- WIPO sectorChemistry
Abstract
Material having relatively high electrical resistivity, such as food products and containers, is disposed within a magnetic coil and subjected to one or more pulses of an oscillating magnetic field having an intensity of between about 2 and about 100 Tesla and a frequency of between about 5 and about 500 kHz. A single pulse of the magnetic field generally decreases the microorganism population by at least about two orders of magnitude, and substantially complete sterility is more closely approached by subjecting the material to additional pulses.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.