E-Code : E100 Curcumin is the main pigment of turmeric spice derived from the rhizomes of Curcuma Longa. Curcumin is included in turmeric or curry spices and has been a part of our diets for years. Curcumin gives an intensive yellow color to foods and there are both fat soluble and water soluble kinds of it. Curcumin is highly-resistant to heat and can be generally used in food products of which pH is in direction of acidity. Over 100 ppm, it is sensitive to sulfur dioxide and non-resistant to light.