Main Reaction: phoenicoxanthin >> astaxanthin

Reference: PubMed ID: 7592436
Authors: Misawa N, Satomi Y, Kondo K, Yokoyama A, Kajiwara S, Saito T, Ohtani T, Miki W
Title: Structure and functional analysis of a marine bacterial carotenoid biosynthesis gene cluster and astaxanthin biosynthetic pathway proposed at the gene level.
Published: 1995 Nov

phoenicoxanthin --> astaxanthin