中文摘要：

以新疆甜瓜籽为原料,采用超临界CO2萃取技术（SFE-CO2）研究了甜瓜籽油的萃取工艺,并对油中脂肪酸成分进行了气相色谱定量分析.研究结果表明：甜瓜籽油较适宜的超临界CO2萃取工艺为：萃取压力25 MPa,萃取温度45℃,分离温度40℃,时间70 min,在此工艺下新疆甜瓜籽油的收率达47.58％.气相色谱分析结果表明：新疆甜瓜籽油主要成分为不饱和脂肪酸,含量达88.92％.脂肪酸中亚油酸含量72.35％,油酸含量16.29％,棕榈酸含量7.89％,硬脂酸含量4.33％.新疆甜瓜籽油作为植物性新油源具有较高的开发和利用价值.

英文摘要：

With Xinjiang melon seed as the raw material, the extraction process of Xinjiang melon seed oil by supercritical CO2 extraction（ SFE- CO2）was studied,and its fatty acid components were analyzed by gas chromatography （GC）. The results showed that the optimal process conditions were as follows ： extrac- tion pressure 25 MPa, extraction temperature 45 ℃, separation temperature 40 ℃ and time 70 rain. The oil yield was 47.46% under the above conditions. According to the GC analysis results,the main compo- nents in Xinjiang melon seed oil was the unsaturated fatty acid with the content of 88.92%. The fatty acid contained linoleic acid 72.35% ,oleic acid 16.29% ,palmitic acid 7.89% and stearic acid 4.33%. Xin- jiang melon seed oil as a new vegetable oil sources has high development and utilization value.