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Curcumin is a biologically active polyphenolic compound found in turmeric that is known to possess properties that may support immune health, relieve pain, aid in digestion, and fights inflammation and oxidation agents.
Curcumin (1,7-bis(4-hydroxy-3-methoxyphenyl)-1,6-heptadiene-3,5-dione), also called diferuloylmethane, is the main natural polyphenol found in the rhizome of Curcuma longa (turmeric). It is the principal curcuminoid of turmeric, a member of the ginger family, Zingiberaceae. Curcumin incorporates several functional groups whose structure was first identified in 1910. The aromatic ring systems, which are phenols, are connected by two α,β-unsaturated carbonyl groups. The diketones form stable enols and are readily deprotonated to form enolates; the α,β-unsaturated carbonyl group is a good Michael acceptor and undergoes nucleophilic addition.
