1. Professor of food safety and analysis Nutrition Department, HIPH - Alexandria University, Egypt.
2. Currently, prof. of food safety and analysis at-Faculty of Meteorology, Environment and Arid Land Agriculture- KAU, Jeddah.
3. Worked as a Consultant Chemist at public health laboratories, MOH, Sultanate of Oman from 1991 to 1997.
4. WHO consultant to the Food Control Department of the MOH of Yemen in a short assignment to train nationals on procedures in instrumental analysis, 1989.
5. Prepared the Arabic version of the ICD- WHO training course “Food Safety for Nutritionist and other Health Professionals" in collaboration with Industry Council for Development (ICD),2003.
6. Prepared ...