1971 Volume 37 Issue 7 Pages 614-620
1. Besides astaxanthin, the presence of β-carotene, echinenone, canthaxanthin, dihy-droxy-pirardixanthin ester, phoenicoxanthin was confirmed in prawn.
2. A possible metabolic pathway from β-carotene to astaxanthin is proposed, and its sequence ist hus suggested: β-carotene→echinenone→canthaxanthin→phoenicoxanthin→astaxanthin.