The ultrasound-assisted extraction conditions of Sapium seed oil were studied. Based on single factor experiment, the main factors affecting oil yield were optimized by Box-Behnken method of response surface methodology. The results showed that the most significant factor was extraction temperature, followed by extraction time, ultrasonic power and ratio of material to liquid. The optimal extraction conditions were obtained as follows: ratio of material to liquid 1∶?11, extraction temperature 47?℃, ultrasonic power 210 W and extraction time 100 min.Under these conditions, the yield of Sapium seed oil reached about 36%. |