The influence of ultraviolet radiation on sanitary and hygiene indicators of polyethylene film for dairy products filled with inorganic components

The research objective was receiving new experimental data about the influence of ultra-violet radiation on sanitary and hygienic characteristics of polymeric polyethylene films filled with CaCO3 for dairy and food products after the impact on them ultra-violet radiation. The research problems were to develop experimental model installation on the basis of the source of UF-radiation of continuous burning; to conduct the researches on the influence of ultra-violet radiation from a mercury bactericidal lamp of continuous burning from a long wave of 247 nanometers on the intensity of migration of volatile organic compounds. The object of the research was the film polyethylene, filled with carbonate of calcium (CaCO3) in the concentration 50 and 70 % mass. It was established that at the impact of UF-radiation on it in various model environments there was selective migration of volatile organic compounds depending on the used model environment. In the extract on the basis of lemon acid at all the modes of radiation the greatest values of migration of volatile organic compounds are observed. However, its contents does not exceed the norms of AMA, mg/dm3, and conforms to the requirements of TR TS 005/2011. The intensity of volatile organic compounds migration was not influenced by the distance from the radiation source to the surface of the sample which made in the real research from 1 to 10 cm. UF-radiation in certain modes had the impact on sanitary and hygienic indicators of high-filled polymeric film materials of the class of polyolefins. At the impact of radiation of the surface of polymeric materials with the contents CaCO3 50.0 and 70.0 % mass within 15 minutes there was the increase in the concentration of some substances (methanol and acetone) to 0.08-0.11 mg/dm3 in comparison with unirradiated materials. It can indirectly testify to the material destruction process initiation that will allow to predict the decrease in environmental pressure and to facilitate the process of the processing or utilization on the ground after the termination of "vital" cycle of packing.