Flavones are widely found in plants. They are pharmacodynamic compounds and have been widely used in the treatment of cancer and various diseases. Unfortunately, for some people, it's hard for them to digest certain kinds of flavones, which is detrimental to their health. In this project, we put FLR gene into E. coli to produce a strain secreting FLR enzyme. The strain degrades flavonoids to produce DAT and stimulate the immune system to achieve the purposes of anti-inflammatory, antibacterial and anti-cancer. Through this project, we hope to help those people assimilate certain flavones and improve their physical state.