Multiple dual-mode centrifugal partition chromatography as an efficient method for the purification of a mycosporine from a crude methanolic extract of Lichina pygmaea.

Centrifugal partition chromatography method was applied to the separation and purification of a crude methanolic extract of a cyanobacterial lichen, Lichina pygmaea. A multiple dual-mode was used to separate two compounds of interest, namely mycosporine-serinol and a glutamic acid derivative. These compounds are described here for the first time in a lichen. Their structures were identified by UV, IR, ESI-MS, (1)H NMR, (13)C NMR, and 2D NMR.