Fig. 2From: E/Z isomerization of astaxanthin and its monoesters in vitro under the exposure to light or heat and in overilluminated Haematococcus pluvialis cellsChromatogram of astaxanthin solution after incubation in chloroform for 2 days at 40 °C: (1) all-E-astaxanthin, (2) 13Z-astaxanthin, (3) 9Z-astaxanthinBack to article page