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Isorenierantene was reported to be an aromatic carotenoid and has become a food ingredient, mainly from smear cheese, which… Expand Organic biomarkers in marine sedimentary rocks hold important clues about the early history of Earth's surface environment. The… Expand Euxinic ocean conditions accompanied significant events in Earth history, including several Phanerozoic biotic crises. By… Expand ABSTRACT The cyclization of lycopene to γ- or β-carotene is a major branch point in the biosynthesis of carotenoids in… Expand Deep-sea sediments of the eastern Mediterranean harbour a series of dark, organic carbon-rich layers, so-called sapropels. Within… Expand ABSTRACT Carotenoids are produced by a variety of organisms, but the mechanisms that regulate gene expression leading to… Expand Stable carbon and nitrogen isotopic compositions were determined for individual photosynthetic pigments isolated and purified… Expand Abstract In sediments, the diaromatic carotenoid isorenieratene can undergo a wide range of molecular transformations, including… Expand Abstract The carotenogenic (crt) gene cluster from Brevibacterium linens, a member of the commercially important group of… Expand The biosynthesis of the aromatic carotene isorenieratene is restricted to green photosynthetic bacteria and a few actinomycetes… Expand