FAEO Overview (IMAGE) Technical University of Munich (TUM) Caption The precursor of the HDMF aroma compound (orange and red spheres) binds to the enzyme FaEO (green). The co-enzyme NADPH, depicted here as a multi-colored ball-and-stick model, provides the necessary electrons for the formation of HDMF, the key aroma compound of ripe strawberries. Credit A. Schiefner/TUM Usage Restrictions Free for use for coverage on Technische Universitaet Muenchen with appropiate credit License Licensed content Disclaimer: AAAS and EurekAlert! are not responsible for the accuracy of news releases posted to EurekAlert! by contributing institutions or for the use of any information through the EurekAlert system.