Kijjoa received his Bachelor of Science from Chulalongkorn University in 1974 and a Doctor of Philosophy degree in Organic Chemistry from the University of São Paulo in 1980.
Kijjoa began his career as an assistant professor at the Faculty of Science at the University of Porto in 1980. Then in 1984, he moved to the Biomedical Sciences Institute of Abel Salazar of the same university and in 1985 he spent three months working on Plant Cell Culture with Professor Hans Becker at the Faculty of Pharmacy of the University of Heidelberg.
In 1986, Kijjoa won a post-doctoral fellowship from the Ministry of Science and Technology of Portugal to work with Professor Werner Herz in the Department of Chemistry at the Florida State University at Tallahassee.
In 1990, Anake was appointed Associate Professor at the Biomedical Sciences Institute of Abel Salazar (ICBAS) of the University of Porto. Since 1994 he has been a Professor of Chemistry at the same Institute.
Anake is an Associate Editor of Marine Drugs and member of the Editorial Advisory Board of various journals.
On September 15, 1950 Anake Kijjoa married Madalena Maria Magalhoes Pinto. They have a child.