Isolation and characterization of C50-carotenoid pigments and other polar isoprenoids from Halobacterium cutirubrum.
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.
D002338:Carotenoids / Q000032:analysis* / Q000302:isolation & purification; D002855:Chromatography, Thin Layer; D006217:Halobacterium / Q000032:analysis*; D008968:Molecular Conformation; D010860:Pigments, Biological / Q000032:analysis*; D013057:Spectrum Analysis
D010860:Pigments, Biological; D002338:Carotenoids