Electron beam carcass irradiation system
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United States of America Patent
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Issued Date -
May 26, 2005
app pub date -
Nov 24, 2004
filing date -
Nov 26, 2003
priority date (Note) -
Abandoned
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Abstract
The invention is a method and system for irradiating carcasses with low energy electrons (between 500 keV and 4.0 MeV) and carcasses generated by the same. Pathogens on a carcass dwell in the outermost tissue layers. The invention accelerates electrons to an energy sufficient to penetrate the outermost tissue layers, which mostly comprise skin and/or fat tissue, but insufficient to penetrate the deeper layers that contain the majority of muscle tissue. The irradiation kills the pathogens. The irradiated tissue can then be removed to expose non-irradiated, pathogen free, muscle tissue which can then be cut and processed. Alternatively, the carcass can be cut into portions that contain minimal irradiated tissue. In this manner, minimal electron beam energy produces maximal pathogen reduction. In addition, it may not be necessary to label meat derived from this method and system as 'irradiated'--because only outer layers that are removed or represent a small portion the product are irradiated.
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