By Johannes Friedrich Diehl
This paintings examines the exaggerations, misunderstandings and muddled terminology that frequently signify the controversies in regards to the defense of nutrients irradiation. It units out to untangle the conflicting claims asserted by means of the proponents and rivals of this contemporary approach to foodstuff processing. info is drawn from foreign medical and political our bodies. This variation: offers effects from contemporary stories at the wholesomeness of irradiated meals; considers functional features of foodstuff irradiation, law, keep an eye on and client recognition; discusses advancements within the identity of irradiated meals; and extra.
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Extra info for Safety of irradiated foods
Agric. Fd. , 1:93122 (1993). 24. Diehl, J. , Bibliography on Irradiation of Foods, No. 38, Federal Research Center for Nutrition, Karlsruhe, 1994. Suggested Readings Urbain, W. , Food Irradiation, Academic Press, Orlando, FL, 1986. WHO/FAO, Food Irradiation. A Technique for Preserving and Improving the Safety of Food, World Health Organization in collaboration with the Food and Agriculture Organization, Geneva, 1988. , Food Irradiation, Elsevier, Amsterdam, 1991. , Food Irradiation: A Guidebook, Technomic, Lancaster, PA, 1993.
A 60Co irradiator as shown in Figure 3 may be loaded with 3 MCi of 60Co (or 111 PBq) or even more. How much product can be irradiated with such a facility per hour or per year? 33 MeV. 5 MeV. 775 × 1017 MeV/sec. The energy dose absorbed by the irradiated product is measured in Gy. 242 × 1012 MeV/kg. 44 tons in 1 sec or 10 kGy in 16 t in 1 h. Realistically we may assume 25% efficiency, and that means 4 t irradiated with a dose of 10 kGy in 1 h. If this facility was in operation 10 months per year, 24 h per day, it could irradiate about 29,000 t at the dose level of 10 kGy, or 290,000 t at the dose level of 1 kGy.
Page 13 As mentioned in the previous chapter, many experiments on food irradiation in the 1950s were carried out with spent-fuel rods from nuclear reactors. Such fuel rods contain a mixture of many fission products, with greatly differing half-lives, emitting different types of radiation with different energies. The composition of fuel rods changes all the time because the radionuclides with short half-lives disappear quickly, whereas those with longer half-lives remain. Although fuel rods are primarily a source of gamma radiation (the less penetrating alpha and beta radiation are absorbed by the steel hull of the rods) they do give off some neutrons.