1. Department of Biological Sciences, Faculty of Sciences, King Abdulaziz University (KAU), Jeddah 21589, Saudi Arabia
2. Chemistry of Natural and Microbial Products Department, National Research Centre, Dokki, Giza 12622, Egypt
3. Department of Microbiology, Faculty of Science, Ain-Shams University, Cairo 11566, Egypt
4. National Institute of Occupational Safety & Health (NIOSH), Cairo 2208, Egypt