Issmat I Kassem1, Marwan Osman2. 1. Center for Food Safety, Department of Food Science and Technology, University of Georgia, Griffin, Georgia. Electronic address: issmat.kassem@uga.edu. 2. Postdoctoral Fellow, Cornell Atkinson Center for Sustainability; Department of Public and Ecosystem Health, College of Veterinary Medicine, Cornell University, Ithaca, NY 14853, USA.