Institute of Organic Chemistry, University of Berne, CH-3012 Berne, Switzerland
Abstract:
Phytoene, phytofluene, tetrahydrolycopene, β-carotene, zeaxanthin and crocetin were isolated from Crocus sativus. The absence of C20-hydrocarbon precursors of crocetin supports a degradation pathway for the biosynthesis of crocetin.