Carotenoid Composition of Telekia speciosa.

ABSTRACT: The carotenoid composition of the flower of Telekia speciosa was investigated for the first time by HPLC-DAD-MS. In addition to the main carotenoid lutein and its geometrical isomers, 5,6-epoxy-carotenoids, namely violaxanthin, lutein 5,6-epoxide and antheraxanthin, were detected in larger amounts. In addition, β-carotene 5,6-epoxide and β-carotene 5,6,5',6'-diepoxide were found, which occurs very rarely in plants. For unambigous identification, β-carotene 5,6-epoxide and β-carotene 5,6,5',6'-diepoxide were prepared semisynthetically, and they were characterized by ¹H and ¹³C NMR and HPLC-CD methods.

SUBMITTER: Varga E 

PROVIDER: S-EPMC10747434 | biostudies-literature | 2023 Dec

REPOSITORIES: biostudies-literature