落葵籽油的提取及其气相色谱质谱联用分析

Extraction and gas chromatography-mass spectrometry analysis of basella rubra seed oil

摘要: 采用有机溶剂浸提（SE）、微波辅助旋转回流提取（ME）和超声波提取（UE）三种方法提取落葵籽油并进行气相色谱质谱联用（GC-MS）分析。结果表明,ME法和UE法的提取率十分接近,分别为15.06%、15.09%,均高于SE法的提取率9.20%;经GC-MS分离鉴定,SE法、ME法和UE法提取的落葵籽油分别有14、11、21种成分,其中共有成分为11种;脂肪酸相对含量占总含量85%以上,其中饱和脂肪酸相对含量占总含量25%以上,主要成分为棕榈酸（18%）,不饱和脂肪酸相对含量占总含量60%以上,主要成分为油酸（31%）和亚油酸（23%）。

Abstract: Basella rubra seed oil was extracted through organic solvent extraction (SE) , microwave-assisted circum rotation reflux extraction (ME) and ultrasonic extraction (UE) and then analyzed by gas chromatography-mass spectrometry (GC-MS) . The result showed that the yield of basella rubra seed oil extracted by ME was 15.06%, close to that by UE (15.09%) and higher than that by SE (9.20%) .There were 14 components in basella rubra seed oil made by SE, 11 components by ME and 21 components by UE, and 11 components were the same. The relative contents of fatty acids in basella rubra seed oil were more that 85%, saturated fatty acids were 25%, unsaturated fatty acids were more that 60%. Main components of fatty acids were oleic acid (31%) , linoleic acid (23%) and palmitic acid (18%) .