Tetrahydro Curcumin四氢姜黄素

Tetrahydrocurcumin (THC), is a product of bacterial or intestinal metabolism of curcumin (via the bacterial enzyme NADPH-dependent curcumin reductase). Curcumin is a yellow, polyphenolic pigment, derived from the rhizomes of a plant (Curcuma longa Linn). In E. coli curcumin is a substrate for the enzyme NADPH-dependent curcumin reductase which catalyzes the metal-independent reduction of curcumin to dihydro curcumin (DHC) as an intermediate product, followed by further reduction to tetrahydrocurcumin (THC) as an end product.