魚類のTunaxanthin画分より立体異性体Tunaxanthin A,Tunaxanthin BおよびTunaxanthin Cの分離〔魚類のカロテノイドに関する比較生化学的研究-16-〕

概要

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Three stereoisomers of ε, ε-carotene-3, 3ε-diol were isolated from tunaxanthin fraction, which has hitherto been identified as a single carotenoid. Tunaxanthin fraction from the integuments of 27 species of fishes was a mixture of three stereoisomeric tunaxanthins, namely tunaxanthin A, tunaxanthin B and tunaxanthin C. In correlation with the experimental results of Californian fishes by BINGHAM et al., it has been deduced that tunaxanthin B is identical to oxyxanthin-51 and that tunaxanthin A and tunaxanthin C will be identical to anyone of the three stereoisomers, oxyxanthin-45, oxyxanthin-58 and chiriquixanthin B respectively although no direct comparison has yet been made.
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