Abstract: The process of extraction and adsorption geniposide from Gardenia collected in Sichuan province were studied by using of macroporous resin.Three factors such as the extraction time,extraction solvent and solid-solvent ratio,were taken into consideration during orthogonal experimental design.The results showed that the optimum extraction process was below:extracting twice with water,the ratio of solid to solvent equals 1:6 and the extracting time was 1 h.Five types of macroporous resin,i.e.,HP-20,HPD-100,HPD-450,D-101 and D-101A were selected for the determination of their adsorption properties of geniposide.Ultimately,HPD-100 was defined as the optimum adsorption material.

Key words: macroporous resin, Gardenia jasminoides Ellis, geniposide, adsorption