沙枣种子油的理化性质及其清除自由基能力研究  

Physical and chemical properties of Elaeagnus angustifolia L. seed oil and its radical scavenging capability

作　　者：张娜[1] 艾明艳[1] 刘丽 冯华安[1] 骆娜[1] 向进国[1] 

机构地区：[1]塔里木大学新疆生产建设兵团塔里木盆地生物资源保护利用重点实验室,南疆特色农产品深加工兵团重点实验室,新疆阿拉尔843300 [2]湖南省农药检定所,长沙410005

出　　处：《中国油脂》2013年第2期88-91,共4页China Oils and Fats

基　　金：新疆生产建设兵团塔里木盆地生物资源保护利用重点实验室开放课题(BRYB1006)

摘　　要：以新疆野生小果沙枣种子为原料,采用超声波辅助提取沙枣种子油。采用气相色谱-质谱联用技术分析其脂肪酸组成,并对其理化性质及自由基清除能力进行了研究。结果表明:沙枣种子油主要脂肪酸组成为亚油酸49.12%、油酸37.26%、棕榈酸3.91%和硬脂酸1.63%,以及少量的二十碳烯酸0.64%、二十碳烷酸0.22%和木焦油酸0.23%。沙枣种子油质量浓度为10 mg/mL时,对.OH、DPPH.、O2-.的清除率分别为87.05%、55.27%、60.21%。沙枣种子油具有较好的抗氧化作用,可作为食用油脂加以开发利用。With Xinjiang Elaeagnus angustifolia L. seed as raw material, the oil was obtained by ultra- sonic assisted extraction. The fatty acid composition of Elaeagnus angustifolia L. seed oil was identified by gas chromatography -mass spectrometry, and its physical and chemical properties and radical scaven- ging capability were analyzed. The results showed that the main fatty acids of Elaeagnus angustifolia L. seed oil were： linoleic acid 49.12% , oleic acid 37.26% , palmitic acid 3.91% , stearic acid 1.63% , eicosenoic acid 0.64%, eicosanoic acid 0.22% and lignoceric acid 0.23%. The scavenging rates of 10 mg/mL Elaeagnus angustifolia L. seed oil on · OH, DPPH· and O2 - were 87.05%, 55.27% and 60.21%, respectively. Elaeagnus angustifolia L. seed oil had good antioxidative ability, and could be developed as edible oil.

关 键 词：沙枣种子油 理化性质 自由基清除能力 

分 类 号：TS221[轻工技术与工程—粮食、油脂及植物蛋白工程]