food irradiation

(redirected from Cold pasteurization)
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The use of low levels—e.g., < 1 mrad—of ionizing radiation to retard spoilage, so named as it has the same effect as pasteurisation—i.e., it improves shelf life and inactivates bacteria that cause food spoilage

food irradiation

The preservation of foods with ionizing radiation. Radiation extends the shelf life of foods by decreasing the number of germs and insects present in them. The process is expensive and has met with considerable resistance from consumers.
See also: irradiation

food irradiation

Deliberate exposure of food to strong ionizing radiation, such as gamma rays, to kill bacteria and insect pests and delay natural changes. Irradiation does not eliminate bacterial poisons (toxins) already formed or kill viruses, but irradiation of food tightly sealed in a suitable container, such as a polythene bag, will kill contained bacteria and further contamination does not occur. Food irradiation by gamma rays does not induce radioactivity; the effects are chemical only and may include changes in flavour and some loss of vitamins.
References in periodicals archive ?
46 logarithmic cycles instantly after cold pasteurization in compare with control samples.
05 (95% probability) and it was statistically significant, but no interaction was observed between studied variants in cold pasteurization process.
Comparing averages of three types frequencies was used in liquid egg yolk cold pasteurization and reduction of TAMC, showed that killing ability of waves has decreased by increasing frequency from 2950 MHz to 3950 MHz, and then by increasing frequency to 4500 MHz efficiency of electromagnetic method in reduction of microbial population in pasteurized product significantly increased (figure.
Maximum doses approved for cold pasteurization of poultry and meat are 3 kGy and 7 kGy, respectively.
To be legally used in cold pasteurization, existing packaging materials that are approved for food use, but not specifically for irradiation processing, require a separate petition or premarket notification (PMN).
45(c) specifies one material--ethylene-vinyl acetate copolymers (EVA)--for use with any of the three irradiation sources approved for cold pasteurization up to a dose of 30 kGy.
In essence, cold pasteurization is relatively simple.
consumers will see evidence of cold pasteurization as early as February 2000.
s Sterilization and Ionization business, headquartered in Oak Brook, Illinois, which provides sterilization, laboratory and cold pasteurization services to the Life Sciences, Food, Laboratory and Materials industries on a global scope.
However, this cold pasteurization is different in that it uses electron beam (E-beam) technology, is fast, requires no heat and destroys E.
The x-ray process is expected to be the preferred cold pasteurization method for many of the processed food providers once Food and Drug Administration (FDA) and United States Department of Agriculture (USDA) approve the Food Irradiation Coalition's petition submitted in August 1999.
Final processing guidelines from the USDA are anticipated this year that will allow the nation's meatpackers and processors to market safer fresh and frozen raw meats through the use of cold pasteurization.