“…Also, it has been the subject of increasing attention, because stereoselective enzymatic reduction is useful for the preparation of chiral building blocks in the synthesis of optically active drugs. [2][3][4][5] In addition, the reduction of bioactive compounds can enhance their physicochemical stability, and improve their bio-and pharmacological properties. We recently reported that cultured Marchantis polymorpha cells reduced curcumin [1,7-bis(4 -hydroxy-3-methoxyphenyl)-1,6-heptadien-3,5-dione] to tetrahydro-curcumin.…”