Journal of Oleo Science
Online ISSN : 1347-3352
Print ISSN : 1345-8957
ISSN-L : 1345-8957
Symposium on the Chemistry of Terpenes, Essential Oils and Aromatics (TEAC)
New Acetylenic Carotenoid 6’-Epimonadoxanthin from the Rosary Goby Gymnogobius castaneus
Takashi Maoka
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2018 Volume 67 Issue 10 Pages 1259-1263

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Abstract

Carotenoids of the rosary goby Gymnogobius castaneus (juzukakehaze in Japanese) were investigated. A new acetylenic carotenoid, (3R,3’R,6’S)-7,8-didehydro-β,ε-carotene-3,3’-diol (1), named 6’-epimonadoxanthin, was isolated along with 18 known carotenoids. The structure of 6’-epimonadoxanthin was determined by UV-VIS, ESI-TOF MS, 1H-NMR, and CD spectral data. The metabolic pathway from diatoxanthin to 6’-epimonadoxanthin is also discussed.

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© 2018 by Japan Oil Chemists' Society
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