Isolation and identification of quercetin and emodin from Cassia tora L.

During the present research work, a flavonoid (quercetin) and an anthraquinone (emodin) were isolated from the in vivo leaves and in vitro callus of Cassia tora L. Their extraction and isolation was done by using their standard protocols, respectively. However, their identifications were carried out through thin layer chromatography, NMR and IR spectroscopy.