Studies On The Ultrasonic Wave-Assisted Extraction Technology For Seed Oil Of Hippophae Rhamnoides L.

Hippohae is a rare plant resource for medical and edible use in China. Sea buckthorn oil, as one of the most important aspects involved in healing properties, is rich in varied bioactive substances. It can strengthen the immune system of human beings, boost cancer-fighting ability, resist radiation and inflammatory, fight aging and prolong life . Meanwhile, it can function well on nourishing the brain cell and adjusting the plant nerve, The oil has been widely used in the industry of medicine, health care, hairdressing and cosmetic.This paper chiefly studied the ultrasonic wave‐ assisted extracting technology of the sea buckthorn seed oil. The optimum condition was determined by the single factor and the RSA response surface analysis, which were: sea buckthorn seed was used as raw materials, petroleum ether as the best extraction solvent, ultrasonic power 800W, extraction time 17min, and the liquid-solid ratio 9∶1. Under these optimum extraction condition, the extraction rate of the crude seed oil of sea buckthorn reached 9.27%.Then, we determined and analyzed the four most important index of the extracted oil---acid value, peroxide value, saponification value, and iodine value. This research indicate the composition contents of sea buckthorn seed oil by GC-MS and Spectrophotometer method. By doing this, we could know how the extracting condition affected these indexes and qualities. It is proved that sea buckthorn seed oil extracted by ultrasonic wave has higher economic value and medical health protection value. This analytical results provide scientific basis for development and utilization of the ultrasonic wave-assisted extraction technology in oil field.