The Biosynthesis of Astaxanthin-IX

The Transformation of Labelled Astaxanthin from the Diet of Sea Bream, Chrysophrys Major Temminck and Schlegel, to their Body Astaxanthin

Abstract

The carotenoids in sea bream have been studied intensively and reported in the series of this thesis.
For two weeks, sea bream were cultured in the laboratory and fed radioactive β-carotene-15, 15'-³H₂ (group 1) and labelled astaxanthin (group 2). It was confirmed that radioactive, β-carotene-15, 15'-³H₂ was not converted into astaxanthin in sea bream, but labelled astaxanthin was transferred to body astaxanthin.