超声波辅助提取栀子油及其脂肪酸组成分析研究

本实验采用超声频率28kHz,功率100W的超声波辅助处理,以石油醚作溶剂从鲜栀子湿果种籽中提取栀子油。研究发现,在料液比为1:10(g/ml),超声处理提取时间为45min,提取次数为3次时,油脂产率较高,达到16.49%。本研究通过GC-MS技术对栀子油中脂肪酸成分进行了测定,结果表明其油脂中含有7种主要的脂肪酸和角鲨烯,脂肪酸组成为十五烷酸、十七烷酸、亚油酸、油酸、二十碳烯酸、二十酸以及二十二烷酸。从相对含量看,亚油酸含量最高。

Study on Ultrasound-assisted Extraction of Gardenia jasminoides Seed Oil and Its Analysis of Fatty Acid Composition

In the present study,the oil was extracted from Gardenia jasminoides seeds by ultrasound-assisted extraction(28 kHz and 100 W) with petroleum oil as solvent.The results showed that the highest extraction efficiency,16.49% is obtain under the following extraction conditions:material and solvent ratio 1:10(g/ml),ultrasound treatment time 45 min and extraction times 3.In the continuous study,GC-MS analysis was used to determine the fatty acid composition of the Gardenia jasminoides seed oil.It was found that the main fatty acids in the oil are pentadecanoic acid,heptadecanoic acid,octadecanoic acid,11-eicosenoic acid,eicosanoic acid and docosanoic acid,and squalene is also found in the Gardenia jasminoides seed oil.The relative content of linoleic acid is the highest.