The Study on Curcuminoids in Chromatography, Spectroscopy and Regioisomerism

Abstract

Abstract The turmeric or Curcuma species was macerated with organic solvents. By executing both analytical and preparative thin-layer chromatographic analysis of the crude material, the chromatographic profile of the curcuminoids could be improved. The Nuclear Magnetic Resonance (NMR) spectra of the pure curcumin, demethoxycurcumin and bisdemethoxy-curcumin was acquired. Additional focus for discussion includes the keto–enol tautomerisation of the products. It is concluded that the understanding of this medicinal herb and its curcuminoidal content, is heightened with advanced technological aid.