摘要：In order to determine a natural yellow dye from the fruits of gardenia in various foods, thinlayer chromatography (TLC) and high performance liquid chromatography (HPLC) were employed for the identification of geniposide which was a main component of the fruits of gardenia. Samples were analysed on TLC of silica gel (the solvent system for detection of geniposide : chloroform/methanol/water=65 : 35 : 10v/v, lower layer) and HPLC (Shodex ODS column with a mobile phase of 0.05M disodiumhydrogenphosphate/acetonitril=85 : 15v/v). This method was found to be a sensitive way to identify a natural yellow dye from the fruits of gardenia in foods.
