A genetically engineered micro-organism comprising an engineered operative metabolic pathway producing resveratrol, or an oligomeric or glycosidically-bound derivative thereof, wherein the engineered operative metabolic pathway produces:
- a) 4-coumaric acid from L-phenylalanine catalysed by a phenylalanine ammonia lyase and a cinnamate 4-hydroxylase expressed in the micro-organism or from tyrosine catalysed by a phenylalanine ammonia lyase or a tyrosine ammonia lyase expressed in said micro-organism;
- and
- b) 4-coumaroyl-CoA from 4-coumaric acid catalysed by a 4-coumarate-CoA ligase expressed in the micro-organism;
- wherein the micro-organism further comprises a more than a native expression level of an acetyl coenzymeA carboxylase (ACC1) enzyme.