Enzymes catalyzing the glycosylation of polyphenols

The invention relates to enzymes catalyzing the glycosylation of polyphenols, in particular flavonoids, benzoic acid derivatives, stilbenoids, chalconoids, chromones, and coumarin derivatives. In one aspect the invention provides for an enzyme catalyzing the glycosylation of polyphenols,wherein the enzyme a) comprises an amino acid sequence according to one of the sequences of SEQ ID NO: 7-12, or b) is encoded by a nucleic acid comprising a nucleotide sequence of one of the sequences of SEQ ID NO: 1-6, or c) is homologous to one of the enzymes defined in a) or b) above, or d) is encoded by a nucleic acid hybridizing under stringent conditions with a nucleic acid complementary to a sequence comprising a nucleotide sequence of one of the sequences of SEQ ID NO: 1-6.