摘要
以提取率为考察指标,在单因素实验基础上采用正交试验优化超临界CO_2萃取技术提取马齿苋籽油工艺,并运用气相色谱质谱联用法(GC–MS)对其脂肪酸组成进行分析。最佳提取工艺为萃取压力35 MPa、萃取温度45℃、CO_2流量6 L/min、一次性投料量50 g、萃取时间2 h,在此条件下油脂提取率为18.04%;马齿苋籽油的脂肪酸主要组成成分为亚麻酸、亚油酸,其含量分别为49.46%、35.93%。
With extraction rate as index,orthogonal design was applied to optimize the preparation process of purslane seed oil through supercriticalCO2 extraction technology on the basis of single factor tests,and fatty acidcomposition was amd lyzed byGC–MS.The results showed that the optimum extractionconditions were：Extraction pressure of 35MPa,extraction temperature of 45℃,flow rate ofCO2 6L/min,inventory for one–time of 50 g, and extraction time 2 h. Under theseconditions,the oil extraction rate reached 18.04%.Main fatty acidcomponents of purslane seed oil were linolenic acid and linoleic acid withcontent of 49.46%, 35.93% respectively.
出处
《粮食与油脂》
北大核心
2015年第12期8-11,共4页
Cereals & Oils
基金
2013年自治区重点技术创新项目(新经信科装[2013]178号)
