Abstract: Different methods and solvent extraction of silkworm pupal oil were compared.The effects of material-liquid ratio,extraction time and extraction tenperature on the extraction rate of silkworm pupal oil were studied by single factor experiment,and the optimum extraction conditions of silkworm pupal oil were determined by orthogonal test.The results showed that the extraction rate of silkworm pupal oil reached 99.5%,the material-liquid ratio is 1∶3,the extraction time is 1h,and the extraction temperature is 30 °C,the acid price was 6.9 mg/g,and the oxidation value was 0.18 g/100 g.Deodorization and decolorization are carried out by vacuum and activated carbon adsorption method.Finally,the silkworm pupa oil which is yellowish and translucent can be obtained.

Key words: silkworm pupal oil, petroleum ether, soak, silkworm pupal ,