| Literature DB >> 16563446 |
Antonio J Meléndez-Martínez1, George Britton, Isabel M Vicario, Francisco J Heredia.
Abstract
Lutein epoxide has been isolated from petals of dandelion (Taraxacum officinale F. Weber ex Wiggers) by thin-layer chromatography (TLC) on silica to be used for the accurate identification of this carotenoid in other sources. The extract was analyzed by high-performance liquid chromatography (HPLC) using a C(30) column, as a result of which six geometrical isomers were separated. The identification of these isomers was performed on the basis of their UV/vis spectroscopic features in the mobile phase. In quantitative terms, it was observed that all-E-lutein epoxide was the major carotenoid and that there were also high amounts of the (9Z)- and (9'Z)-isomers, although the latter may be an artifact.Entities:
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Year: 2006 PMID： 16563446 DOI： 10.1016/j.phytochem.2006.02.002
Source DB: PubMed Journal: Phytochemistry ISSN： 0031-9422 Impact factor: 4.072