Effect of gamma irradiation on inactivation ofEscherichia coliO157:H7,SalmonellaTyphimurium andListeria monocytogeneson pistachios

This study evaluated the efficacy of gamma irradiation to inactivate food‐borne pathogens on pistachios (Pistacia vera L.). Pistachios inoculated with Escherichia coli O157:H7, Salmonella Typhimurium and Listeria monocytogenes were subjected to gamma irradiation in the range of 0, 0·5, 1, 3 and 5 kGy, and colour change was evaluated after treatment and during storage at room temperature. Pathogen populations decreased with increasing treatment...