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  • Title: Structure of new carotenoids with the 6-oxo-kappa end group from the fruits of paprika, Capsicum annuum.
    Author: Maoka T, Akimoto N, Fujiwara Y, Hashimoto K.
    Journal: J Nat Prod; 2004 Jan; 67(1):115-7. PubMed ID: 14738402.
    Abstract:
    New carotenoids 1 and 2 were isolated as minor components from the ripe fruits of paprika (Capsicum annuum). The structures of 1 and 2 were determined to be (3R,5'R)-3-hydroxy-beta,kappa-caroten-6'-one and (5'R)-3,4-didehydro-beta,kappa-caroten-6'-one, respectively, from UV-vis, NMR, CD, HRFABMS, and FABMS/MS spectra.
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