Patent ID: 7338791

Claim:
A method of producing a flavonoids in a host cell comprising the steps of: a) introducing into the host cell an exogenous nucleic acid comprising a set of genes encoding for enzymes sufficient to direct the synthesis of a desired flavonoid from a substrate, wherein the set of genes comprises Malus domestica Flavanone 3-hydroxylase (FHT), Dianthus gratianovolitanus or Anthurium andraeanum Dihydroflavonol 4-reductase (DFR), Malus domestica Anthocyanidin synthase (ANS) and Petunia x hybrida UDP-glucose:flavonoid 3-O-glucosyltransferase (3-GT); b) providing the substrate to the cells, wherein the substrate is a flavanone; c) culturing the cell under conditions permitting the synthesis of the flavonoid by the cells; and d) isolating said flavonoids from said cell, wherein the flavonoids is an anthocyanidin selected from the group of anthocyanidins consisting of pelargonidin 3-O-glucoside and cyanidin 3-O-glucoside.