Main Reaction: Echinenone >> Canthaxanthin

Reference: PubMed ID: 9119049
Authors: Harker M, Hirschberg J
Title: Biosynthesis of ketocarotenoids in transgenic cyanobacteria expressing the algal gene for beta-C-4-oxygenase, crtO.
Published: 1997 Mar 10

Echinenone --> Canthaxanthin