Enhancement of curcumin oral absorption and ...
Curcumin (1.65 g) powder was added into 10 ml PEG 400 or PEG 600 (Sigma, St. Louis, MO. USA) in a glass tube covered by aluminum foil. After stirring, the tube was heated at 100°C in a heating block for 15 min till the curcumin powder was completely dissolved in PEG 400 or PEG 600.