In this study, oil was extracted from favela (Cnidoscolus quercifolius) seeds via the Soxhlet method using ethanol, isopropanol, ethyl acetate, and n-hexane as solvents. Ethanol provided the highest oil yield (49.6 wt%), β-sitosterol concentration (131.6 mg 100 g_oil⁻¹), TPC (197.4 mg GAE kg_oil⁻¹), and antioxidant activity (6.0 mmol Trolox kg_oil⁻¹). Therefore, ethanol was used for the non-conventional pressurized-liquid extraction (PLE) method. The effects of the mass flow rate (2, 3, and 4 g min⁻¹) and temperature (40, 60, and 80 ºC) on the PLE with ethanol at 10 MPa were evaluated. A yield of up to 45.8 wt% was obtained when the amount of consumed ethanol was 58 g (~19 min of dynamic extraction). The Soxhlet- and PLE-obtained oils presented similar fatty acid profiles and contents of acylglycerols. No significant differences were observed in the total tocopherol and β-sitosterol concentrations of the oils extracted via PLE at different temperatures.

在这项研究中，油从贫民区（提取Cnidoscolus quercifolius）种子经由使用乙醇，异丙醇，乙酸乙酯索氏方法，和Ñ己烷作为溶剂。乙醇提供最高的油收率（49.6 wt％），β-谷固醇浓度（131.6 mg 100 g_油^-1），TPC（197.4 mg GAE kg_油^-1）和抗氧化活性（6.0 mmol Trolox kg_油^-1）。因此，将乙醇用于非常规加压液体萃取（PLE）方法。质量流量（2、3和4 g min ^-1的影响）和温度（40、60和80℃），在PLE上用10 MPa的乙醇进行了评估。当消耗的乙醇量为58 g（动态萃取〜19分钟）时，收率可达45.8 wt％。索氏提取物和PLE所获得的油具有相似的脂肪酸谱和酰基甘油含量。在不同温度下，通过PLE提取的油中的总生育酚和β-谷甾醇浓度没有观察到显着差异。