The extraction of radish seed oil (RSO) with subcritical propane (SP) was investigated. The effects of pressure (6 and 10 MPa) and temperature (303 and 333 K) on the oil yield and chemical composition of the RSO were determined and the results were compared with ultrasound-assisted extraction (UAE) and Soxhlet extractor (SE) using n-hexane. The operating conditions investigated with SP had little influence on the RSO yield; however, the solubility was greatest at 333 K and 10 MPa, which provided 75 % of the SE yield and similar results to those obtained with UAE. RSO showed a predominance of monounsaturated fatty acids, which gives it less susceptible characteristics to auto-oxidation. The tocopherol content was not affected by the SP conditions, while the higher temperature (333 K) favored the removal of phytosterols. The quality of the oil extracted with SP was superior to that obtained with the other techniques regarding the phytosterols and acylglycerols contents and the oxidative induction time.

研究了用亚临界丙烷（SP）萃取萝卜种子油（RSO）的方法。确定了压力（6和10 MPa）和温度（303和333 K）对RSO的油收率和化学组成的影响，并将结果与​​超声辅助萃取（UAE）和索氏萃取器（SE）进行了比较。ñ正己烷。用SP研究的操作条件对RSO产量影响不大。但是，溶解度在333 K和10 MPa时最大，提供了75％的SE收率，并且得到的结果与用UAE获得的结果相似。RSO显示出主要的单不饱和脂肪酸，这使其对自动氧化的敏感性降低。生育酚的含量不受SP条件的影响，而较高的温度（333 K）则有利于植物甾醇的去除。关于植物甾醇和酰基甘油的含量以及氧化诱导时间，用SP提取的油的质量优于其他技术。