Curcuma longa L. is a plant of Indian origin commonly used in Asiatic cultures for several hundreds as a spice named turmeric. As the development of sci-technology, the function of turmeric had been beyond traditional medicine konown by human beings. The main component is curcumin, one of the active ingredients responsible for its biological activity. Curcumin is a major yellow pigment in turmeric (the ground rhizome of Curcuma longa Linn), which is widely used as a spice and coloring agent in several foods...