Abstract：
Chinese sour jujube is an important fruit for both medicine and food and effects various biological activities. Although the Chinese sour jujube seed (Ziziphi spinosae semen) is rich in oil, its lipid profiles is significantly affected by the extraction process. However, no studies to date have comprehensively analysed the lipid composition and bioactivity of Ziziphi spinosae semen oil processed using different methods. In this study, we compared the effects of commonly-used pressed, ultrasonic-assisted, and Soxhlet extraction methods on the lipid composition, characteristics, and antioxidant properties of Ziziphi spinosae semen oil. Nineteen subclasses and 390 lipid molecular species were identified, of which 24 lipid molecular species could potentially be used as biomarkers for different processing methods. Correlation analysis revealed that 57 lipids were significantly correlated with the antioxidant capacity (r > 0.9 and P < 0.05). These results indicate that Ziziphi spinosae semen oil is rich in bioactive lipids. These data greatly expand our understanding of the bioactive lipids of Ziziphi spinosae semen oil. Additionally, it could provide useful information for Ziziphi spinosae semen oil applications in functional products or the food industry and new insights into the effects of active vegetable oil processing.
摘要：
酸枣是医药和食品的重要水果，影响各种生物活性。虽然中国酸枣种子（酸枣仁）富含油脂，它的脂质分布受提取过程的显著影响。然而,迄今为止，尚无研究全面分析使用不同方法加工的酸枣仁精液油的脂质组成和生物活性。在这项研究中,我们比较了常用压榨的效果，超声波辅助,和索氏提取方法对脂质成分，特点,酸枣仁油的抗氧化性能。鉴定了19个亚类和390个脂质分子种类，其中24种脂质分子可能被用作不同加工方法的生物标志物。相关分析显示,57个脂质与抗氧化能力显著相关(r>0.9,P<0.05)。这些结果表明，酸枣仁精液油富含生物活性脂质。这些数据极大地扩展了我们对酸枣仁精液油的生物活性脂质的理解。此外,它可以为酸枣仁在功能性产品或食品工业中的应用提供有用的信息，以及对活性植物油加工效果的新见解。
