This plant is included in the type of meeting and belongs to the Zingiberaceae family. The main part of the turmeric plant is the rhizome or the place where the shoots grow. The skin of the rhizome of this plant is brown and the inside is dark yellow, orange yellow, or reddish orange yellow. By appearance Turmeric rhizome also stores various chemical substances in it. The main content of turmeric is curcuminoids and essential oils. Curcuminoids and their derivatives namely demethoxicurcumin and bismidexicurcumin in turmeric plants have a concentration of 3% to 5%. Curcuminoids have a prismatic crystal form or short rods, form emulsions or are insoluble in water, but curcumin can readily dissolve in acetone, ethanol, methanol, benzene, and chloroform.
