Dr. Kitagaki has graduated the Faculty of Agriculture of the University of Tokyo of Japan. He earned a Ph.D. in the university and worked as a researcher in National Research Institute of Brewing, Japan, and a post-doctoral researcher in Medical University of South Carolina, USA. He became an independent associate professor in Saga University. He has been awarded from Commendation of the Minister of Education, Culture, Science, Sports and Technology, Agricultural Foundation of Japan and Society for Biotechnology, Japan. His publications reflect his versatile majors including Journal of Biological Chemistry, Molecular Microbiology, Journal of Agricultural and Food Chemistry, Applied Microbiology and Biotechnology, Eukaryotic Cell, Biochimica Biophysica Acta, FEBS Letters, and European Journal of Biochemistry.