| abstract |
Disclosed are recombinant microorganisms, plants, and plant cells engineered to express zeaxanthin-degraded dioxygenase either alone or in combination with a recombinant gene encoding UDP-glycosyltransferase (UGT). The microorganism, plant, or plant cell may produce a compound from saffron, such as crocetin, crocetin dialdehyde, crocin, or picrocrocin. |