WHEN the dried petals of Adonis annua L. (Ranunculaceæ) (pheasant's eye) are extracted with light petroleum or methanol comparatively large quantities of a deep orange-red carotenoid are obtained ...

Department of Chemistry, National University of Singapore, Singapore 117543, Singapore Shaanxi Institute of Flexible Electronics (SIFE) & Xi’an Key Laboratory of Biomedical Materials & Engineering, ...