Y. H. Hui, the president of Science Technology System in West Sacramento, California and American Food & Nutrition Center, received his Ph.D. degree from the University of California at Berkeley. YH Hui is the president of Science Technology System in West Sacramento, California and American Food & Nutrition Center. He has authored, coauthored, edited, or coedited more than 70 professional books in food science, food technology, food engineering, and food laws. He has guest-lectured in universities in North, Central, and South America as well as Europe, and Asia and served as a consultant for the food industries, with an emphasis on food sanitation and food safety. E. Özgül Evranuz after graduating from the Chemical Engineering Department of Middle East Technical University (METU, 1971) in Ankara, Turkey, she began her academic career in the area of food technology. She holds M.S. degrees in chemical engineering (METU) and food science and management (University of London, Queen Elizabeth College) and a Ph.D. degree in chemical engineering (ITU). She is among the builders of Food Engineering Department of ITU and has served as Professor (1994-2012) of food processing in that department. Her main interests are preservation, storage, and packaging of food plant materials. She has served as a book editor and has several publications in the field.