bestrålede

Bestrålede is a Danish term used as a past participle and adjective meaning irradiated or exposed to ionising radiation. It describes objects that have undergone irradiation, typically with the intent to sterilize, disinfect, or modify material properties. Although closely tied to Danish-language usage, the concept is widely used in science and industry, including food processing, medicine, and materials science. The root verb bestråle means to irradiate; the form bestrålede is used for things that have been irradiated.

Irradiation methods include gamma irradiation using radioactive isotopes such as cobalt-60 or cesium-137, electron-beam irradiation (high-energy electrons), and X-ray irradiation. Doses are measured in grays (Gy) and vary by application, from disinfection to sterilization or polymer modification.

Applications are diverse. In medicine, bestrålede equipment and single-use items are sterilized to ensure sterility without heat or moisture. In food processing, irradiation reduces pathogenic bacteria, delays sprouting in tubers, and extends shelf life. In materials science, irradiation can alter polymer properties, for example by cross-linking.

Safety and regulation: Irradiation doesn’t make the product radioactive; the process is tightly regulated to ensure safety and proper labeling. In many jurisdictions, irradiated foods or products must be clearly labeled, and doses are kept to levels approved for their purpose. Nutritional and sensory changes can occur, especially at higher doses, and radiolytic byproducts are monitored.

See also: irradiation, food irradiation, sterilization, radiolysis.