姜黄醇提取物有降血脂、抗脂质过氧化的作用，经高效波相色谱（HPLC）和薄层色谱（TLC）分析，其成分主要是姜黄素、一脱甲氧基姜黄素和二脱甲氧基姜黄素,三者比例约为7：2：1，测得三批样品总含量在61．80％～66.50％之间。经TLC分析，在姜黄素与一脱甲氧基姜黄素之间及二脱甲氧基姜黄素与原点之间还分离到三个未知物。另有微量残留的挥发油及糖类。铅、汞、砷含量均在0．5PPM以下，总灰分＜1%，干燥失重＜1．5%。 Curcumin extracts are hypolipidemic and anti-lipid peroxidation, and their components are mainly curcumin, a demethoxycurcumin, and mitochondrial by high performance wave chromatography (HPLC) and thin layer chromatography (TLC) analysis. The ratio of methoxy curcumin was about 7:2:1, and the total content of three batches of samples was between 61.80% and 66.50%. By TLC analysis, three unknowns were also isolated between curcumin and a demethoxycurcumin and between the two demethoxycurcumins and the origin. Another trace of residual volatile oils and sugars. The content of lead, mercury, and arsenic are all below 0.5PPM, the total ash is less than 1%, and the loss on drying is less than 1.5%.