The First Isolation and Identification of Tunaxanthin D, [(3S, 6R, 3'R, 6'S)-ε, ε-carotene-3, 3'-diol] from Marine Fishes

Abstract

The seventh naturally occurring tunaxanthin, tunaxanthin D was isolated from the integuments of marine fishes. Tunaxanthin D was identical with (3S, 6R, 3'R, 6'S)-ε, ε-carotene-3, 3'-diol. This is the first report of the isolation of the naturally occurring tunaxanthin possessing 6R, 6'S-configura-tion.