木兰科四种植物种子油的提取及脂肪酸成分分析

Extraction of seed oil and fatty acid analysis from four species in Magnoliaceae

关键词:  白玉兰  凹叶厚朴  深山含笑  醉香含笑  种子油  脂肪酸

Key words:  Magnolia denudata  M.officinalis sbusp.biloba  Michelia maudiae  M.macclurei  seed oil  fatty acid

摘要:

采用超声波辅助提取法和微波辅助提取法同时提取白玉兰、凹叶厚朴、深山含笑和醉香含笑四种木兰科植物的种子油,种子油甲酯化后,运用气相色谱—质谱联用技术测定其脂肪酸成分。结果表明:四种植物种子油的提取率不同,白玉兰平均为27.35%、凹叶厚朴23.34%、深山含笑31.66%,醉香含笑9.27%。不同提取方法所得到的种子油脂肪酸成分和相对含量不同,但四种种子油的主要脂肪酸成分相同,包括油酸、亚油酸、硬脂酸和棕榈酸。

Abstract:

The seed oil from Magnolia denudata,M.officinalis sbusp.biloba,Michelia maudiae and M.macclurei in Magnoliaceae were extracted by ultrasonic assisted extraction technology and microwave assisted extraction technology. The compositions of the oil were analyzed by gas chromatography mass spectrometry after methyl esterification. The results revealed that the oil extraction rate were different in four species,the average contents were 27.35% in Magnolia denudata,23.34% in M.officinalis sbusp.biloba,31.66% in Michelia maudiae and 9.27% in M.macclurei. Different extraction methods resulted in different components and relative contents of fatty acid,but the main and common components of above four seed oils were similar,including oleic acid,linoleic acid,stearic acid and palmitic acid.