テラピアTilapia niloticaにおけるZeaxanthinよりRhodoxanthinへの生体内代謝

抄録

An attempt was made to determine whether or not Tilapia was able to metabolize zeaxanthin to its principal carotenoid, rhodoxanthin.
Test diets containing zeaxanthin were fed to Tilapia for 30 days.
The control group and the zeaxanthin fed group were similar to one another in the carotenoid patterns, but were different in the percentage compositions and the amounts of carotenoids, In the zeaxanthin group, rhodoxanthin accumulated and amounted to four times that of the control. It was concluded that zeaxanthin was metabolized to rhodoxanthin in vivo.