The main effect of the irradiation is to the death of microorganisms, such as high-energy rays, gamma rays, and so on. The United Nations Food and Agriculture Organization, the International Atomic Energy Agency and the World Health Organization. To achieve anti-corrosion. According to the regulations, the product must be labeled after irradiation, but the reporter visited found that many of the irradiated foods are not marked. Insiders: almost all the vacuum packed chicken legs are irradiated with.

Radiation processing, refers to the electron accelerator (0.2MeV~10MeV occurred in the electronic line, or radioactive isotopes (Cs-137 and Co-60 gamma ray energy transfer to be irradiated material, the role of ionizing radiation to be irradiated material, ionization and excitation, release the electron orbit, forming free radicals, by controlling the radiation condition to be irradiated material physical properties and chemical composition changes and make it become the people need a kind of new material, or by unrecoverable loss and damage the organisms (microorganisms), reach people need to target. This new processing technique called the radiation processing technology. For example, the polymer materials respectively, graft polymerization, fission or crosslinking, inhibition or soothing biological growth, effectively kill insects, eggs, bacteria, etc.

With the development of technology and economy, the improvement of material civilization and the improvement of the regulations of the time, with the improvement of people's understanding of the superiority of irradiation sterilization, it is a global trend, and has a bright future. By irradiation of food, for example, the development of food irradiation technology began in the 1940s, all over the world, many experts and scholars in the radiation process, radiation chemistry, radiation biology, microbiology, nutrition and toxicology etc. are carried out a large amount of experimental work related to irradiated food safety study on the effect of speech of thousands of. Food irradiation is a kind of physical process, which belongs to cold work, low energy consumption, no need to add chemical drugs, no drug residues, can keep the original color, smell and taste, which is very important for food and not suitable for high temperature sterilization.

Established in 1963 the irradiated food safety joint committee of experts on the Committee from 1963 to 1980 has held a number of meetings, according to years of research results, the accumulation, in 1980 officially to the rest of the world put forward: any food is 10KGy following irradiation dose irradiation, not due to radiation induced toxicity. Therefore, dispose of irradiated food is safety and health is no longer required toxicology test, also in nutrition and microbiology is safe in 1997, the Committee for the high dose group declared beyond 10KGy high doses of radiation is safe, the conclusion has greatly promoted the development of irradiation industry around the world, now for the international accepted.