Flavonoids widely found in bee products are excellent antioxidants. The structural features
are important in evaluating the antiradical activity of flavonoid. In this work, the density
functional theory (DFT) methods were applied to investigate the influence of C2double
bondC3 double bond on the antiradical activity of flavonoid based on three prevalently
accepted radical scavenging mechanisms from the thermodynamic aspect. It is found that
the hydroxyl groups in different rings are affected variously by the C2double bondC3 double …

Flavonoids widely found in bee products are excellent antioxidants. The structural features
are important in evaluating the antiradical activity of flavonoid. In this work, the density
functional theory (DFT) methods were applied to investigate the influence of C2C3 double
bond on the antiradical activity of flavonoid based on three prevalently accepted radical
scavenging mechanisms from the thermodynamic aspect. It is found that the hydroxyl groups
in different rings are affected variously by the C2C3 double bond and the 3OH group is most …