Dihydroflavonol Reductase Activity Assay kit

Dihydroflavonol-4-reductase (DFR) is a key enzyme in the biosynthetic pathway of phycocyanin,which catalyzes the production of different anthocyanin precursors from dihydroflavonols. Therefore, DFRdetermines the type and content of anthocyanins in plants, which in turn affects the color of thetissuesororgans of plants. DFR, NADPH and dihydroflavonols react to produce anthocyanin precursors. NADPHhasamaximum absorption peak at 340 nm. The magnitude of DFR activity can be obtained by detectingtherateof change of NADPH at 340 nm.