Ultrasonic extraction of seabuckthorn seed oil

Effects of different factors including extraction solvent, time, temperature, ratio of liquid to solid, and the ultrasonic power on the yield of seabuckthorn oil were investigated in this paper. The optimal conditions were obtained through single factor orthogonal experiment as followed: ethyl acetate as extraction solvent, extraction time 15 min, liquid to solid ratio 40 ml/g, extraction temperature 60℃, and ultrasonic power 90 W. Finally, the performance of ultrasonic extraction was compared using the Soxhlet extraction method and the microwave extraction method. The results indicated that the ultrasonic method had the advantage of low energy and solvent cost, and high yield of oil.