Title
Sulfur-Containing Carotenoids from A Marine Coral Symbiont Erythrobacter flavus Strain KJ5
Author
Edi Setiyono , Heriyanto, Delianis Pringgenies, Yuzo Shioi, Yu Kanesaki, Koichiro Awai, Tatas Hardo Panintingjati Brotosudarmo
Year
2019
Journal
Marine drugs
Abstract
Erythrobacter flavus strain KJ5 (formerly called Erythrobacter sp. strain KJ5) is a yellowish marine bacterium that was isolated from a hard coral Acropora nasuta in the Karimunjawa Islands, Indonesia. The complete genome sequence of the bacterium has been reported recently. In this study, we examined the carotenoid composition of this bacterium using high-performance liquid chromatography coupled with ESI-MS/MS. We found that the bacterium produced sulfur-containing carotenoids, i.e., caloxanthin sulfate and nostoxanthin sulfate, as the most abundant carotenoids. A new carotenoid zeaxanthin sulfate was detected based on its ESI-MS/MS spectrum. The unique presence of sulfated carotenoids found among the currently known species of the Erythrobacter genus were discussed.
Full Article
Instrument
FTIR-6800
Keywords
Fourier transform infrared spectroscopy, carotenoids; caloxanthin sulfate; nostoxanthin sulfate; zeaxanthin sulfate; Erythrobacter flavus strain KJ5