Natural curcumin

Product introduction:

Curcumin is a chemical component extracted from the rhizomes of some plants in Zingiberaceae and Araceae. Among the above pure natural plants, curcumin contains about 3% - 6%. It is a rare pigment with diketones in the plant world. It is a diketone compound. Curcumin is an orange yellow crystalline powder with a slightly bitter taste. Insoluble in water. In food production, it is mainly used for coloring intestinal products, cans, sauce and brine products.

Synonymous: Curcumin; ketamine; 17 bis (4-hydroxy-3-methoxyphenyl) - 16 heptadiene-35-dione

Molecular formula: C₂₁H₂₀O₆

Molecular weight: 368.37

Curcumin active ingredient:

Curcumin, Demethoxycurcumin, double Demethoxycurcumin

Curcumin extraction method:

Supercritical CO₂ extraction, microwave extraction

Physical property:

Curcumin is an orange crystalline powder with a melting point of 183 °. Curcumin is insoluble in water and ether, soluble in ethanol and glacial acetic acid. Curcumin is an orange yellow crystalline powder with a slightly bitter taste. Insoluble in water, soluble in ethanol and propylene glycol, easily soluble in glacial acetic acid and alkali solution, reddish brown when alkaline, yellow when neutral and acidic. It has strong stability to reducing agent and strong coloring (not to protein). Once colored, it is not easy to fade, but it is sensitive to light, heat and iron ions, and has poor light resistance, heat resistance and iron ion resistance. Because there are two hydroxyl groups at both ends of curcumin molecule, the conjugation effect of electron cloud deviation occurs under alkaline conditions. Therefore, curcumin will change from yellow to red when pH is greater than 8. Modern chemistry uses this property as an acid-base indicator.