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The major zeaxanthin dipalmitate derivatives from wolfberry
Jia-Tang Long1, Hong-Xia Fan2, Zheng-Qun Zhou3
1School of Chinese Materia Medica, Guangzhou University of Chinese Medicine, Guangzhou 510006, China.
Abstract:
Zeaxanthin dipalmitate (3) and two zeaxanthin dipalmitate derivatives, including one new compound (1), were obtained from wolfberry [the fruit of Lycium barbarum L. (Solanaceae)]. Their structures were unambiguously elucidated by spectroscopic analyses. Compound 2 is isolated from the genus Lycium for the first time, and its 1D/2D NMR data are firstly reported. All the compounds belong to carotenoids which are a kind of major bioactive constituents in wolfberry and are also responsible for wolfberry's red color.
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