アスタキサンチンの生合成-19-α-ドラデキサンチンの分布と金魚におけるカロチノイドの代謝〔英文〕

概要

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Significant amounts of α-doradexanthin (3, 3'-dihydroxy-β, ε-carotene-4-one) were isolated from the integuments but not from the internal organs of goldfish, Carassius auratus (Linne), Benibuna, Carassius auratus v., fancy red carp, Cyprinus carpio Linne v., golden yellow carp, Cyprinus carpio Linne v. Lutein, canthaxanthin and to a lesser extent zea-xanthin were isolated from the internal organs of these fish. Absorption spectra of α-doradexanthin and its saponification product, α-doradecin, are given. The partition ratio of the latter pigment is also reported. By feeding pure lutein and zeaxanthin it was confirmed that these pigments could be converted to astaxanthin in the goldfish, while β-carotene and canthaxanthin were not converted to astaxanthin. The fish fed pure zeaxanthin was redder in color than those fed lutein. It food can be transferred to body astaxanthin.
日本水産學會の論文