Carotenoids and their metabolism in the goldfish Carassius auratus (Hibuna)
1999
Ohkubo, M. | Tsushima, M. | Maoka, T. | Matsuno, T.
A total of 18 known carotenoids and three new carotenoids, (3S, 4R, 3'S, 6'R)-4-hydroxylutein, (3S, 3'S, 4'R)-4-keto-4'-hydroxydiatoxanthin, and (3S, 3'S, 4'R)-4-keto-4'-hydroxyalloxanthin were isolated from the goldfish Carassius auratus. On the basis of structural consideration of the isolated carotenoids and the result of our previously reported feeding experiment of lutein A and (3R, 3'R)-zeaxanthin to goldfish, the present authors proposed the possible metabolic pathways from lutein A, lutein B, (3R, 3'R)-zeaxanthin, diatoxanthin and alloxanthin to fritschiellaxanthin, alpha-doradexanthin, (3S, 3'S)-astaxanthin, (3S, 3'S)-7,8-didehydroastaxanthin, and (3S, 3'S)-7,8,7',8'-tetradehydroastaxanthin, respectively.
显示更多 [+] 显示较少 [-]