1. Department of Biochemistry, Faculty of Science, King Abdulaziz University. Jeddah, Saudi Arabia
2. Modern Sciences and Arts University (MSA), Giza, Egypt
3. Production of natural products for industrial purposes Research Group, King Abdulaziz University, Saudi Arabia
4. Experimental Biochemistry Unit, King Fahd Medical Research Centre, King Abdulaziz University, Saudi Arabia
5. Director of R and D Department, Opticon Hygiene Consulting, Oechsli, Zurich, Switzerland
6. Bioactive natural products Research Group, King Abdulaziz University, Jeddah, Saudi Arabia
7. Department of Biochemistry, Faculty of Science, Ain Shams University, Cairo, Egypt