Abstract Background In this study, turmeric ( Curcuma longa L.) powder was prepared with various extraction and drying methods. Extractions were performed using three solvents (water, 50% ethanol, 70% ethanol) methods, namely, spray (SD), freeze (FD), spray-freeze (SFD). Results Levels of the curcuminoids, curcumin, demethoxycurcumin, bisdemethoxycurcumin, in preparations analysed HPLC, scannin...
