摘要
用回流和超声法制备八月瓜果籽油,用气相色谱-质谱联用仪测定油脂的化学成分,考察制备方法对油脂得率和化学成分的影响。结果表明:用石油醚回流萃取和石油醚、乙醇、乙酸乙酯、丙酮超声萃取制备油脂的得率分别为36.0%、38.6%、28.0%、30.8%、36.4%。5种油脂中脂肪酸含量分别为69.69%、83.51%、89.78%、69.33%、57.54%,不饱和脂肪酸总相对含量分别为45.25%、51.80%、37.54%、42.21%、43.31%。油脂中主要脂肪酸为棕榈酸、油酸和亚油酸。用石油醚超声提取的油脂得率、脂肪酸含量和不饱和脂肪酸相对含量都较高。
The seed oil of Akebia trifoliate was prepared by reflux and ultrasonic extraction,and its chemical constituents were measured by gas chromatography-mass spectrometry.Influence of preparation methods on the extraction yield and chemical components of oil were investigated.The results showed that the extraction yields of oil by petroleum ether reflux extraction and petroleum ether,alcohol,ethyl acetate,acetone ultrasonic extraction were 36.0%,38.6%,28.0%,30.8%,and36.4%,respectively.Fatty acid contents of five oils were 69.69%,83.51%,89.78%,69.33%,and 57.54%,and the contents of unsaturated fatty acid were 45.25%,51.80%,37.54%,42.21%,and 43.31%,respectively.The main fatty acids in the seed oils were hexadecanoic acid,oleinic acid,and linoleic acid.Extraction yield and the contents of fatty acid and unsaturated fatty acids in the seed oil were higher by petroleum ether ultrasonic extraction.
出处
《食品科学》
EI
CAS
CSCD
北大核心
2015年第22期142-146,共5页
Food Science
基金
湖南湘西自治州科技计划项目(州财企函[2013]7号)
湖南省大学生研究性学习和创新性实验计划项目(湘教通[2014]248号)
关键词
八月瓜
油脂
化学成分
气相色谱-质谱联用
Akebia trifoliate
oil
chemical constituent
gas chromatography-mass spectrometry（GC-MS）
