【摘要】 利用丙酮—甲苯混合溶剂从姜黄中提取姜黄色素及姜黄油树脂。以体积比为38∶1∶1的氯仿—乙酸乙酯—甲醇混合溶剂作为洗脱剂,硅胶柱色谱分离10 g姜黄色素,纯物质的收率为:姜黄素45%,脱甲氧基姜黄素为13%,二脱甲氧基姜黄素为24%,纯色素的总收率为82%。更多还原

【Abstract】 The turmeric pigments and oleoresins were extracted from Curcumin Longa L.with mixed solvent of acetone and toluene.Applied the mixed solvent of chloroform,ethyl acetate and methanol as eluting agent,10g pigments were effectively separated with silica gel column chromatography when the volume ratio of chloroform,ethyl acetate and methanol was 38∶1∶1.The yield of the compositions was 45% curcumin,13% demethoxycurcumin,24% bisdemethoxycurcumin.The total yield of pure pigment was 82%.更多还原