The Process of Ultrasound Technology Assisted Extraction of Safflower Seed Oil

In order to obtain the ultrasonic technology assisted extraction process of safflower seed oil,the effect of the extraction solvents, ultrasonic temperature, ultrasonic time, solid-liquid ratio, ultrasonic frequency on the extraction rate were studied. It was showed that the best extraction solvent was petroleum ether and the best condition were: the ultrasonic temperature 35 ℃, the ultrasonic time 20 min, solid-liquid ratio 1 ∶ 9(g/m L).The highest extraction rate reached 27.8 %.