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. 1975 Aug 25;398(2):303-14.
doi: 10.1016/0005-2760(75)90146-0.

Isolation and characterization of C50-carotenoid pigments and other polar isoprenoids from Halobacterium cutirubrum

Isolation and characterization of C50-carotenoid pigments and other polar isoprenoids from Halobacterium cutirubrum

S C Kushwaha et al. Biochim Biophys Acta. .

Abstract

The polar acetone-soluble lipids of Halobacterium cutirubrum were found to contain (in addition to the previously reported vitamin MK-8 and retinal) neo-bacterioruberin U, bacterioruberin, monoanhydrobacterioruberin, bis-anhydrobacterioruberin, an isomer of geranylgeraniol (with one internal cis-isoprene residue), 2,3,-di-O-phytanyl-sn-glycerol and two unidentified polar isoprenoids. All compounds were isolated in pure form by column and thin-layer chromatography, quantitated and characterized by their visible, ultraviolet, infrared, proton magnetic resonance and mass spectra and the spectra of their acetyl or silyl derivatives and/or dehydrated products.

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