AUTHOR=Yatsunami Rie , Ando Ai , Yang Ying , Takaichi Shinichi , Kohno Masahiro , Matsumura Yuriko , Ikeda Hiroshi , Fukui Toshiaki , Nakasone Kaoru , Fujita Nobuyuki , Sekine Mitsuo , Takashina Tomonori , Nakamura Satoshi 

TITLE=Identification of carotenoids from the extremely halophilic archaeon Haloarcula japonica

JOURNAL=Frontiers in Microbiology

VOLUME=5

YEAR=2014

URL=https://www.frontiersin.org/journals/microbiology/articles/10.3389/fmicb.2014.00100

DOI=10.3389/fmicb.2014.00100

ISSN=1664-302X

ABSTRACT=<p>The carotenoids produced by extremely halophilic archaeon <italic>Haloarcula japonica</italic> were extracted and identified by their chemical, chromatographic, and spectroscopic characteristics (UV-Vis and mass spectrometry). The composition (mol%) was 68.1% bacterioruberin, 22.5% monoanhydrobacterioruberin, 9.3% bisanhydrobacterioruberin, &lt;0.1% isopentenyldehydrorhodopin, and trace amounts of lycopene and phytoene. The <italic>in vitro</italic> scavenging capacity of a carotenoid, bacterioruberin, extracted from <italic>Haloarcula japonica</italic> cells against 1,1-diphenyl-2-picrylhydrazyl (DPPH) radicals was evaluated. The antioxidant capacity of bacterioruberin was much higher than that of β -carotene.</p>