food irradiation


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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 ?
Establish a documentation system to support the controls on the food irradiation process.
Food irradiation facilities have already contaminated the environment, according to the Organic Consumers Association, which describes one incident in 1988, where radioactive water escaped from an irradiation facility in the state of Georgia.
In addition, The World Health Organization, and many other national and international bodies, have endorsed food irradiation as safe.
In 1998," says a Food & Water Watch report, "he went so far as to write a letter to Florida residents promoting food irradiation, a letter that Food Technology Service since began using in its marketing material.
Food irradiation, designed to reduce bacteria, exposes food to ionizing radiation through gamma rays (produced by radioactive materials), X-rays, or electron-beams.
There are deep concerns over the human and environmental impacts of irradiation technology and last year the Senate called for a halt to further food irradiation approvals until more research is done into the health effects.
Over 40 years of research on food irradiation has found that foods exposed to low levels of irradiation are safe, wholesome, and retain their quality.
I haven't heard much about food irradiation lately.
What is said to be the first food irradiation refit in the USA at a refrigerated food warehouse has been opened at CFC Logistics, Milford Township, Quakertown, Pennsylvania, a USDA-approved 4.
To learn more about food irradiation, read Epstein's "Preventing Pathogenic Food Poisoning: Sanitation, Not Irradiation," in the International Journal of Health Services, Volume 31(1): 187-192, 2001 or type irradiation + Samuel Epstein into your Yahoo search engine.
Chapters added for the second edition cover arsenic, gasoline and its additives, food irradiation, metals (including chromium, manganese, and nickel), chemical/biological terrorism, and environmental threats specific to developing countries.
Irradiated food has been available to the general public since 1999, and food irradiation technology is similar to what is used to sterilize surgical devices to prevent infection.

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