Influência da aplicação de irradiação por feixe de elétrons na qualidade microbiológica de filés de corvina (Micropogonias furnieri) refrigerados

The proper handling of fish from capture to technological processing, as well as maintenance of sanitary conditions and the quality of water, can influence the initial microbial load presented. In order to slow down the deterioration process, the reduction of losses and eminent risk to public health as the spread of etiological agents of foodborne illness are different methods used for storage. Electron beams are used in several countries and lead to the destruction of microorganisms by changes in their structures, which occur by removing electrons from their atoms. The objective in the present study contributes to the evaluation of electron beam irradiation efficiency in microbiological quality of chilled croaker fillets (M. furnieri), landed in Niteroi - RJ, Brazil. Were performed Bacteria Count Heterotrophic aerobic mesophilic, psychrotrophic bacteria Heterotrophic Aerobic and enumeration of Enterococcus spp. and subsequently compared to the control group of samples with the groups irradiated at doses of 0.7 and 1.0kGy. Whole fish were purchased from the Itaipu pier, threaded on the market, vacuum packed and kept at +/- 4 degrees C. Although there was no statistically significant difference among the three groups ( P> 0.05) in any of the analyzes, it was concluded that the application of this technology was effective in reducing the growth of the three bacteria surveyed on day zero of both irradiated groups.