Study On Curcin Purification From The Seeds Of Jatropha Curcas By Functional Polyurethane Foam

The paper improved the extracting method of crude curcin liquid in Jatropha seeds, and by orthoglnal experiment design , the best condition of the PBS was obtained. The conclusions include following aspects: with PBS of pH=7.2, concentration=0.02mol/mL, volume=100ml, the effiency of extraction of curcin from Jatrapha' seeds is the optimum, which is 16.78%.By signal method, the best matching of material of foam is found. Under the proportion of the material of foam: Polyether:100, TDI:150, TEDA:0.6, DBTDL:0.4, Si:1, H₂O:0.1, PAM:25,acetone:20, with the one step bubble method, the polyamide and polyurethane foam were mixed, then the mixture was treated with amine under the appropriate condition, and the absobate foam with symmetrical bubble and good elasticity was obtained . The related properties of the foam were measured .Its dry density is 0.11986mg/mL, the swelling capacity in water is 18%,the damnify in water is 0.03585. the foam was used to separate the curcin of mixed standard protein,and its result indicate that the foam has good purification.Functional polyurethane foam was used to separate the curcin of Jatropha' seeds. The experiment indicate, with PBS pH 7.2, column height 250mm,flow velocity 2mL/min, the foam can purify the three kinds of curcin of Jatropha's seeds well.