期刊论文

Supercritical CO_2 extraction of Idesia Polycarpa oil and analysis of its fatty acid composition

中文

食品与机械

1003-5788

2016

32

11

154-157,228

10.13652/j.issn.1003-5788.2016.11.035

国家林业公益性行业科研专项（编号:201204811）；

本校为第一机构

为了充分利用山桐子资源,采用单因素试验和 Box-Be-hnken 试验设计优化山桐子油的超临界 CO 2萃取工艺,运用气相色谱—质谱(GC—MS)分析山桐子油的脂肪酸组成。结果表明：超临界 CO 2萃取山桐子油的优化工艺条件为萃取时间147 min,萃取温度53℃,萃取压力24 MPa；在该条件下,山桐子油得率为(38.25±0.41)%。山桐子油得率和影响因素间的回归模型极显著(P=0.0009)。GC—MS 结果表明,山桐子油主要由不饱和脂肪酸组成,不饱和脂肪酸含量为81.33%,亚油酸含量为71.43%。山桐子油是一种优质的食用油资源,超临界 CO 2可以高效萃取山桐子油。

To make full use of Idesia polycarpa resource, the optimum conditions of extracting oil in I. Polycarpa by supercritical CO_2 were studied by single factor and Box- Behnken designs, and the fatty acid composition of this oil was analyzed by gas chromatography-mass spectrometry (GC-MS). The results showed that the yield of the oil in I. polycarpa extracted by supercritical CO_2 was (38.25±0.41)%, when extracted at 24 MPa and 53 ℃ for 147 min. Moreover, the regression model between yield and influence factors was very significant (P=0.000 9). I...