华中木兰和乐昌含笑种子油的提取及成分分析_刘世彪 . Extraction and fatty acid compositions analysis of seed oils of Magnolia glabrata and Michelia chapensis

Abstract

The ultrasonic-assisted extraction of seed oils from Magnolia glabrata and Michelia chapensis in Magnoliaceae was performed by single factor test,and the fatty acid compositions were analyzed by gas chromatography-mass spectrometry (GC-MS).The results showed that the optimal extraction conditions were as follows:petroleum ether as the extraction solvent,ratio of material to solution 1:7,extraction time 40 min,extraction temperature 70℃.Under these conditions,the extraction rate of Magnolia glabrata seed oil was 14.53%,and that of Magnolia chapensis was 29.34%.GC-MS analysis revealed that the seed oils of the two plants contained palmitic acid,linoleic acid,oleic acid and stearic acid.The relative content of linoleic acid in Magnolia glabrata was 58.42%,and that in Magnolia chapensis was 64.53%.